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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Matematika & Sains Momentum: Physics Education Journal Jurnal Tarbiyah : Jurnal Ilmiah Kependidikan Indonesian Physical Review JPPS (Jurnal Penelitian Pendidikan Sains) JPPIPA (Jurnal Penelitian Pendidikan IPA) Inovasi Fisika Indonesia (IFI) Inovasi Pendidikan Fisika Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Makara Journal of Science JIPI (Jurnal IPA dan Pembelajaran IPA) AMPLITUDO: Journal of Science & Technology Innovation Journal of Dedication in Community (JoDiC)
Madlazim Madlazim
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PENGEMBANGAN PERANGKAT PEMBELAJARAN BLENDED LEARNING MODEL COOPERATIVE UNTUK MENINGKATKAN HASILBELAJAR FISIKA SMA KELAS XI Rosmiati, Rosmiati; Jatmiko, Budi; Madlazim, Madlazim
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 3, No 1 (2013)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v3n1.p294-298

Abstract

This research is research development at developing learning material based on blended learning cooperative model. The learning material is developed using Kemp model and one group pretest-posttest design. Try out for learning material is carried out at 2nd semester SMAN 16 Surabaya. The research subjects in grade XI IPA 2, XI IPA 3 and XI IPA 4 and the topic is thermodynamics. Data gathering uses three methods; observation, test and questionnaire. Material validity analysis is applied to analyses data. The validity involve (a) the truth of conseptual in learning material: the reabilitas of learning plans at 85,71%, student’s worksheet at 75%, student’s teks book at 77,27%, web moodle with homepage  http://fisikaunesa.net/elearning/ at 86,34% and assesment sheet for product and process test at 100%, (b) legibility of: student’s worksheet at 99%,  student’s text book at 97,7% and web moodle at 100% in easily understood category, (c) difficulties: student’s worksheet at 1,0; student’s text book at 13,0; Web Moodle at 0,0; and assessment sheet in easily understood category. 2) the practicality involve: (a) realization of Learning Plans reached 100% in good category, (b) student’s activity reached 89% in good category, (c) WIFI’s trouble. 3) the effectivity involve: (a) enhancement  of student’s achievement with N-Gain calculation: Natural Science 2 class with score 0,88, Natural Science 3 with score 0,85, Natural Science 4 with score 0,87 in high category, (b) student’s response with meanin 3 in agree category. Based on the results, it can be concluded that learning material based on Blended Learning Cooperative Model to increase student’s achievement in physics at senior high school grade XI is feasible.Penelitian ini adalah penelitian pengembangan yang mengembangkan perangkat pembelajaran blended learning model kooperatif. Perangkat pembelajaran dikembangkan menggunakan model Kemp dengan model ujicoba one group pretest-posttes design. Uji coba perangkat pembelajaran dilakukan pada semester genap SMAN 16 Surabaya. Penelitian ini dilakukan pada kelas XI IPA 2, XI IPA 3 dan XI IPA 4 materi termodinamika. Pengumpulan data menggunakan tiga teknik yaitu observasi, tes dan angket sedangkan analisis data menggunakan analisis validitas perangkat. Hasil penelitian dianalisis dan diperoleh beberapa temuan yaitu: 1) validitas yang meliputi: (a) kebenaran konseptual perangkat pembelajaran: RPP dengan reabilitas 85,71%, LKS dengan reabilitas 75%, BAS dengan reabilitas 77,27%, web moodle dengan hompage  http://fisikaunesa.net/elearning/ dengan reabilitas 86,34%, dan LP untuk THB produk dan proses dengan reabilitas 100%, (b) keterbacaan: LKS 99%, BAS 97,7% dan  Web Moodle 100% dengan kategori mudah dipahami (c) Kesulitan: LKS 1,0; BAS 13,0; Web Moodle 0,0; dan LP berada pada kategori mudah dipahami. 2) Kepraktisan yang meliputi: (a) Keterlaksanaan RPP mencapai 100% berkategori baik, (b) Aktivitas siswa mencapai 89% berkategori baik, (c) kendala jaringan WIFI. 3) Efektifitas meliputi: (a) Peningkatan hasil belajar dengan perhitungan N- Gain: IPA 2 skor 0,88, IPA 3 skor 0,85, IPA 4 skor 0,87 dengan kriteria tinggi, (b) respon siswa dengan rata -rata 3 berada pada ketegori setuju. Berdasarkan hasil temuan di atas, dapat disimpulkan bahwa perangkat pembelajaran blended learning model cooperative untuk meningkatkan hasil belajar fisika SMA kelas XI layak digunakan.
PENGEMBANGAN PERANGKAT PEMBELAJARAN IPA MODEL PROYEK UNTUK MELATIHKAN BERPIKIR KREATIF SISWA SMP MATERI GERAK BENDA Karlin, Karlin; Widodo, Wahono; Madlazim, Madlazim
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 5, No 2 (2016)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v5n2.p949-965

Abstract

This research aims to develop valid, practical, and effective science learning material using project learning model to facilitate creative thinking skills on object motion in junior high school. Design of the development are used follow 4D model desin. The learning kit being validated by experts are syllabus, lesson plan, student work sheet, handout, and creative thinking question. The objective of this research was to trial learning materials in 39 grade VIII students in SMPN 31 Surabaya with One Group Pretest Postes Design. The results were analyzed by descriptive quantitative and qualitative. The result were obtained shows that the developed learning materials are: (1) Validity of learning material valid category (3,58); (2) Practicality based on: a) Feasibility of instruction good category (3,9); b) Readability of worksheets and student’s book students stating that the content and appearance of worksheets and student’s book good category; (3) Effectiveness based on: a) Student’s activities high category (93%); b) Result of creative thinking students increased with medium category (N-Gain: 0,62), result of creative thinking students increased with medium category (N-Gain:0,674) in fluency thinking aspect, result of creative thinking students increased with high category (N-Gain:0,726) in flexible thinking aspect, result of creative thinking students increased with medium category (N-Gain:0,531) in original thinking aspect, and result of creative thinking students increased with medium category (N-Gain:0,530) in elaboration thinking aspect; c)The response of students very positively (92%). The conclusion of this research that science learning material developed base on project learning model valid, practical, and effective to facilitate student’s creative thinking in junior high school. Penelitian ini bertujuan mengembangkan perangkat pembelajaranIPA model proyek yang valid, praktis, dan efektif untuk melatihkan berpikir kreatif siswa SMP materi gerak benda. Rancangan pengembangan yang digunakan mengikuti rancanagn model 4D. Perangkat  pembelajaran yang dikembangkan meliputi Silabus, RPP, Handout siswa, LKP, dan Soal berpikir kreatif. Sasaran penelitian adalah perangkat pembelajaran yang diujicobakan pada 39 siswa kelas VIII SMPN 31 Surabaya dengan rancangan menggunakan One Group Pretest-Postest Design. Hasil penelitian dianalisis secara deskriptif kuantitatif dan kualitatif. Hasil yang diperoleh menunjukkan bahwa perangkat pembelajaran yang dikembangkan dinyatakan: (1) Validitas perangkat kategori valid (3,58); (2) Kepraktisan perangkat yang meliputi: a) Keterlaksanaan baik (3,9); b)Keterbacaan Handout dan LKP baik; (3) Keefektifan perangkat pembelajaran yang meliputi: a) Aktivitas siswa dengan kategori tinggi (93%); b) Hasil berpikir kreatif siswa mengalami peningkatan dengan kategori sedang (N-Gain: 0,62), pada aspek berpikir lancar (fluent) mengalami peningkatan berkategori sedang (N-Gain: 0,674), berpikir luwes (flexible) mengalami peningkatan berkategori tinggi (N-Gain: 0.726), berpikir orisinal (original) mengalami peningkatan berkategori sedang (N-Gain: 0,531), dan berpikir terperinci (elaboration) mengalami peningkatan berkategori sedang (N-Gain: 0,530); c) Respon siswa terhadap perangkat dan model pembelajaran sangat positif (92%). Simpulan penelitian ini bahwa perangkat pembelajaran IPA model proyek valid, praktis, dan efektif untuk melatihkan berpikir kreatif siswa SMP.
PENGEMBANGAN PERANGKAT PEMBELAJARAN INKUIRI TERBIMBING BERBANTUAN SIMULASI KOMPUTER MATERI ATOM, ION, DAN MOLEKUL UNTUK MENINGKATKAN HASIL BELAJAR SISWA SMP Syahri, Syahri; Madlazim, Madlazim; Rachmadiarti, Fida
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 7, No 1 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v7n1.p1370-1378

Abstract

This research aims to produce a feasible guided inquiry instructional materials by using computer simulation to improve student’s learning achievement of junior high school. The application of computer simulation used consists of PhET (Sims Build an Atom), Jmol, and Periodic Table. Development of this instructional material refers to Dick and Carey’s model. The subjects of this research was instructional materials that consist of syllabus, lesson plan, student’s worksheet, textbook, and achievement test. It was conducted to IX grade students in junior high school. The data were collected using questionnaire, observation, and test. The data were analyzed  using descriptive qualitative and quantitative statistic technique. The results of this research reveal that: (1) the instructional materials which is developed categorized very valid; (2) learning implementation categorized very good; (3) cognitive domain of the students’ learning achievement have increased by a score of N-gain high category; and (4) the students responded positively towards learning. Based on this results, it can be concluded that the guided inquiry instructional materials by using computer simulation which have been developed feasible used to improve student’s learning achievement.
LEARNING DEVICE REQUIREMENT SCIENCE EDUCATION BY PROBLEM BASED LEARNING (PBL) TO INCREASE HIGH ORDER THINKING SKILLS JUNIOR HIGH SCHOOLS Fuaidah, Nur; Madlazim, Madlazim; Agustini, Rudiana
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 9, No 2 (2020)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v9n2.p1797-1803

Abstract

At this 21st century, thinking ability for students based on High Order Thinking Skills. This research was to analyze learning device requirement science education by Problem Based Learning to increase High Order Thinking Skills junior high school. This research method is using 4D model. Learning tools developed consist of syllabus, lesson plans, work sheet, and assessment sheets. The device was tested in class IX with a total of 20 students in one of the junior high schools Pasuruan. Data collection using the method of validation, observation, tests, and questionnaires. Data analysis techniques using quantitative descriptive methods. The findings of the research are: (1) the validity of the learning kit with an average syllabus component, lesson plans, worksheet, and assessment sheet obtaining a very valid category so that it can be used in teaching and learning. (2) the practicality of learning tools is obtained from the implementation of lesson plans from two observers with very good categories so that it can be concluded practically in learning activities and the obstacles encountered during learning activities can be overcome without the learning process experiencing significant disturbances. (3) effectiveness is indicated by the increase in HOTS characterized by n-gain results were 19 students as high and 1 student as moderate, while the students' responses to the learning component are happy, interesting and makes learning material easy to understand. Based on data analysis, it can be concluded that the natural science learning material based on PBL model is feasible to increase HOTS.
PENGEMBANGAN PERANGKAT PEMBELAJARAN MODEL NESTEDBERBASIS INKUIRI TERBIMBING UNTUK MENINGKATKAN PEMAHAMAN KONSEP, THINKING SKILL, DAN SOCIAL SKILL PADA SISWA SMP Choiriyah, Fitrotul; Madlazim, Madlazim; Haryono, Tjipto
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 7, No 1 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v7n1.p1379-1385

Abstract

This research was done by developing learning materials (lesson plans, student’s worksheets, textbooks students, test understanding of the concept, Thinking skill and Social Skill) nested models based guided inquiry by using 4D development model to improve the understanding of the concept, thinking skills and social skills on the subject of light. The objective of this research is trial learning materials for 32 of junior high school’s students with the design of the one-group pretest-posttest design. Result was analyzed by descriptive quantitative - qualitative with: (a) validity of learning material is very valid category; (b) learning realization with good category; (c) the students response are positive; (d) student’s understanding of the concept is increased (high criteria); (e) thinking skill is increased (high criteria); (f) social skill increased in every meeting. In conclusions of this research, the nested model based learning guided inquiry concepts can improve the understanding concept, thinking skills, and social skill of junior high school
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS INKUIRI TERBIMBING UNTUK MELATIH LITERASI SAINS SISWA Sumarti, Sri; Rahayu, Yuni Sri; Madlazim, Madlazim
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 5, No 1 (2015)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v5n1.p822-829

Abstract

This research aims to develop guided inquiry based teaching materials which is valid, practical, and effective to facilitate the students’ scientific literacy. The development of teaching material used the 4D model  and was tested in grade 7th-D of SMP GEMA 45 in the second semester of  2014/2015 by using the Pre-Experimental One-Group Pretest-Posttest Design. The data collection used documentation observation, test, and quetionnaires. The data analysis techniques used quantitative descriptive analysis.The results of this research are:1) Teaching material developed is valid categorised  to be use consisted of Syllabus, Lesson Plan, Student Worksheet, Student Book and Test of student learning outcomes; 2) The practicality of teaching material in terms of a good category in feasibility of lesson plans, the students’ activities in accordance with  inquiry model and students give a positive responses toward teaching material and implementation of teaching material developed; and 3) The teaching material effectiveness in terms of: (a) Improving students’ learning achievement seen from the individual and classical completeness; (b) Improving students’ scientific literacy by getting gain score between middle until high category. Based on data analyzed the teaching materials based on guided inquiry are valid, practical, and effective to facilitate the students’ scientific literacy. Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran berbasis inkuiri terbimbing yang layak (valid, praktis, dan efektif) untuk melatih literasi sains siswa. Pengembangan perangkat pembelajaran menggunakan model 4D  dan diujicobakan di kelas VII-D SMP GEMA 45 semester genap tahun ajaran 2014/2015 dengan One-Group Pretest-Posttest Design. Pengumpulan data menggunakan metode dokumentasi, observasi, tes, dan angket. Teknik analisis data menggunakan analisis deskriptif kuantitatif. Hasil penelitian ini menunjukkan,: 1) Perangkat pembelajaran yang dikembangkan berkategori valid; 2) Perangkat pembelajaran berketagori praktis ditinjau dari keterlaksanaan RPP, aktivitas siswa sesuai dengan tahap-tahap model inkuiri, dan siswa merespon positif perangkat yang dikembangkan dan implementasinya; serta 3) Perangkat pembelajaran telah efektif ditinjau dari: (a) Peningkatan pengetahuan siswa (b) Peningkatan literasi sains  siswa. Berdasarkan hasil analisis data dapat disimpulkan bahwa perangkat pembelajaran berbasis  inkuiri terbimbing yang dikembangkan valid, praktis, dan efektif untuk melatih literasi sains siswa sehingga layak untuk digunakan.
ANALISIS RESPONS SPEKTRA GELOMBANG SEISMIK HASIL REKAMAN ACCELEROGRAM DI STASIUN SEISMIK KARANGKATES Sa’adatud Daroin; Madlazim Madlazim
Inovasi Fisika Indonesia Vol 2 No 2 (2013)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (795.038 KB) | DOI: 10.26740/ifi.v2n2.p%p

Abstract

Abstrak Zona subduksi di sepanjang selatan Jawa dan sesar aktif yang berada di pulau Jawa merupakan sumber gempa bumi. Upaya mitigasi diwilayah ini menjadi bagian penting, salah satu upaya mitigasi adalah melalukan antisipasi terhadap struktur tanah diantaranya bisa melalui respons spektra. Dalam konteks ini, dilakukan penelitian untuk mengetahui tingkat kekerasan tanah di bawah stasiun seismik KRK Karangkates. Aturan yang digunakan dalam klasifikasi tanah ini menggunakan Standar Perencanaan Ketahanan Gempa Untuk Struktur Bangunan Gedung SNI-1726-2002 dengan periode getar spektra antara 0.2 detik hingga 0.5 detik  termasuk dalam klasifikasi tanah keras, periode 0.2 detik hingga 0.6 detik termasuk dalam klasifikasi tanah sedang dan periode getar antara 0.2 detik hingga 1.0 detik termasuk dalam klasifikasi tanah lunak. Data yang digunakan dalam penelitian ini merupakan data rekaman seismik berupa data percepatan gelombang gempa (accelerograph) yang diperoleh dari bank data accelerometer yang terpasang di stasiun seismik yang terdapat di Badan Meteorologi Klimatologi dan Geofisika (BMKG), data ini didapat langsung dari perangkat BMKG karena data ini tidak disebarkan sebagaimana data seismograph. Berdasarkan hasil analisis dengan menggunakan software Geopsy, software DAD/SP 2002 dan software Prism disimpulkan bahwa karakteristik tanah di bawah stasiun Karangkates termasuk dalam klasifikasi tanah keras.   Kata kunci :  Accelerogram, Respons spektra, periode getar, SNI-1726-2002   Abstract Subduction zone along the southern Java and active faults are located on the island of Java is the source of the earthquake. Mitigation efforts in this area become an important part, one of the mitigation measures are put through the anticipation of the soil structure can be through spectra response. In this context, the research was conducted to determine the soil hardness level under seismic station Karangkates. Rules used in the classification of the land used planning standard for Earthquake Resistance of Building Structures ISO-1726-2002 to the period vibration of  spectra between 0.2 seconds to 0.5 seconds are included in the classification of hard soil, the period 0.2 seconds to 0.6 seconds are included in the classification of land and shakes. the period between 0.2 seconds to 1.0 seconds including in the classification of soft soil. The data used in this research used the data records in the form of seismic waves of the earthquake acceleration data (accelerograph) obtained from the data bank accelerometer mounted on the seismic station located at the Meteorology, Climatology and Geophysics Agency (BMKG), the data is obtained directly from the BMKG because the data is not transmitted as a seismograph data. Based on the analysis results by using Geopsy software, DAD/SP 2002 software and Prism software, it is concluded that the characteristics of the soil under the station KRK Karangkates included in the hard soil classification.   Keywords: Accelerogram, response spectra, the period of vibration, ISO-1726-2002
STUDI b-VALUE UNTUK PENGAMATAN SEISMISITAS WILAYAH PULAU JAWA PERIODE 1964-2012 AFIFI MUTIARANI; Madlazim Madlazim; Tjipto Prastowo
Inovasi Fisika Indonesia Vol 2 No 2 (2013)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (887.457 KB) | DOI: 10.26740/ifi.v2n2.p%p

Abstract

Abstrak Dinamika tektonik pulau Jawa didominasi oleh gerakan lempeng Indo-Australia yang bergerak ke utara bertumbukan dengan lempeng Eurasia yang relatif diam. Tunjaman lempeng tersebut mengakibatkan pergerakan batuan. Kondisi ini menjadikan pulau Jawa sebagai daerah tektonik aktif dengan tingkat seismisitas yang tinggi. Dalam konteks ini, tujuan penelitian ini adalah untuk mengetahui pengaruh frekuensi gempa terhadap magnitudo gempa bumi dan mengetahui tingkat kerapuhan batuan pulau Jawa sebagai estimasi bencana gempa bumi. Parameter seismo-tektonik suatu wilayah dapat diketahui dari relasi Gutenberg-Richter, yaitu log N = a – bM, di mana N adalah frekuensi gempa, M adalah magnitudo gempa, nilai a merupakan tingkat seismisitas suatu wilayah dan nilai b merupakan tingkat kerapuhan batuan. Untuk mencapai tujuan tersebut maka kedua parameter dapat dianalisis dengan menggunakan metode kuadrat terkecil. Data yang digunakan dalam penelitian ini merupakan data parameter gempa bumi yang  diperoleh dari IRIS katalog ISC dan NEIC 1964-2012 dengan magnitudo ≥ 5 dan kedalaman 0-655 km di pulau Jawa yang berlokasi di 105⁰-114⁰ BT dan 6.5⁰-12⁰ LS. Koordinat lintang dan bujur dibagi menjadi 3 bagian, yaitu Jawa Barat, Jawa Tengah dan Jawa Timur. Berdasarkan hasil analisis data dari ketiga sebaran wilayah pulau Jawa didapatkan pengaruh frekuensi gempa terhadap magnitudo gempa bumi yaitu semakin besar frekuensi gempa maka semakin kecil magnitudo gempa bumi. Perbandingan parameter seismo-tektonik memberikan nilai b di Jawa Barat (0,721), lebih tinggi dari wilayah Jawa Tengah (0,65) dan Jawa Timur (0,503). Temuan-temuan tersebut ditafsirkan sebagai wilayah Jawa Barat merupakan daerah yang memiliki tingkat kerapuhan batuan yang lebih tinggi dibandingkan Jawa Tengah dan Jawa Timur. Hasil analisis tersebut juga menunjukkan bahwa semakin tinggi tingkat kerapuhan batuan, maka semakin tinggi pula aktivitas seismik yang terjadi di wilayah tersebut. Kata Kunci: seismisitas, b-value Abstract Tectonic of java dominated by Australian Eurasian plate movement that moves to the north, and get crushed with Eurasia plate that relative silent. Crushed zone is that plate beget rock movement. This condition make java as tectonic region active with high level of seismicity. In this context, research is done to know influence of frequency to magnitude earthquake and knows rock crispness zoom java as estimation of earthquake disaster. Seismotectonic parameter a region gets to be known from Gutenberg Richter's relation, which is logarithm N =  a –  bM , where N is frequency, M is magnitude earthquake point, a is seismicity's zoom a region and point b is rock crispness zoom. To reach the purpose of research, both of parameter gets analyzed by use of least squares methods. Data that is utilized in this research is earthquake parameter data that acquired of IRIS catalogue ISC and NEIC 1964-2012 by magnitudes ≥ 5 and depths 0-655 km at java that  location at 105°-114°  BT and 6.5°-12°  LS. Transversal and longitudinal coordinate divided as 3 a part, which are Western Java, Intermediate java and East Java. Base on analysis's result of third spread territorial java was gotten by influence of frequency to earthquake magnitude which is the greater frequency therefore make magnitude of earthquake getting smaller. Comparison of seismotectonic parameter assigns b-value at West Java (0,721) higher than Intermediate Javanese region (0,65) and East Java (0,501). That finding are paraphrased as region of West Java is constitute region that have increase superordinate rock crispness than Intermediate Java and East Java. The result of analyzing also points out that crispness level excelsior rock, therefore excelsior too happening seismic activity territorial that. Key Words : Seismicity, b-Value
Analisis Tingkat Resiko Gempa Bumi Tektonik di Papua pada Periode 1960-2010 LILIK WAHYUNI PURLISSTYOWATI; Madlazim Madlazim; Tjipto Prastowo
Inovasi Fisika Indonesia Vol 2 No 2 (2013)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (865.387 KB) | DOI: 10.26740/ifi.v2n2.p%p

Abstract

Abstrak   Papua merupakan salah satu wilayah rawan gempa bumi karena Papua terletak pada pertemuan dua lempeng yaitu lempeng Pasifik dan lempeng Samudera Indo-Australia yang membentuk daerah subduksi. Penelitian ini bertujuan untuk menganalisis keadaan seismisitas dan tingkat resiko gempa bumi di Papua. Distribusi aktivitas seismik suatu wilayah diketahui dari hubungan frekuensi (N) dan magnitudo (M) gempa bumi dengan menggunakan relasi Gutenberg-Richter yaitu Log N = a – bM. Nilai a merupakan tingkat seismisitas suatu daerah sedangkan nilai b merupakan tingkat kerapuhan batuan. Data yang digunakan merupakan data sekunder yang diperoleh dari IRIS, periode 1960-2010 dengan magnitudo momen ≥ 3,0 SR dan kedalaman 0-220 km. Daerah penelitian berlokasi antara 2°LS-9°LU dan 130°BT-141°BT. Prosedur yang digunakan setelah data didapatkan yaitu membagi wilayah berdasarkan koordinat lintang dan bujur, menjadi dua kluster dengan kluster 1 terletak pada 2°LS-9°LU dan 130°BT-135,39°BT serta kluster 2 terletak pada 2°LS-9°LU dan 135,4°BT-141°BT. Berdasarkan hasil analisis menggunakan metode kuadrat terkecil diketahui bahwa nilai a pada kluster 1 dan kluster 2 masing masing sebesar 6,644 dan 5,624 maka kluster 1 mempunyai tingkat seismisitas lebih besar dari kluster 2. Nilai b pada kluster 1 dan kluster 2 masing masing sebesar 0,840 dan 0,662 maka kluster 1 mempunyai tingkat kerapuhan batuan lebih besar dari kluster 2. Gempa bumi yang terjadi di daratan kluster 2 memiliki magnitudo yang lebih besar dari gempa bumi yang terjadi di daratan kluster 1. Oleh karena itu, gempa bumi pada kluster 2 lebih berpotensi menimbulkan kerusakan dan ancaman korban jiwa dibandingkan dengan gempa bumi pada kluster 1. Jadi, kluster 2 memiliki tingkat resiko gempa bumi yang lebih besar daripada kluster 1. Kata Kunci: seismisitas, kluster, tingkat resiko.   Abstract   Papua is an area that prone of earthquakes because Papua is located at the confluence of two plates. They are Pacific plate and Indo-Australian ocean plate that make the subduction zones. This study aims to analyze the state of seismicity and earthquake risk in Papua. Distribution of seismic activity in a region known from relationship of frequency (N) and magnitude (M). This research used the Gutenberg-Richter relationship is log N = a - bm. a-value is seismic activity of a region and b-value is level of fragility rock. The data used are secondary data obtained from IRIS, the period 1960-2010 with a magnitude moment ≥ 3.0 SR and depth of 0-220 km. The research area is located between 2oS – 9oN and 130oE – 141oE. The procedure used after the data is obtained then dividing the area of latitude and longitude coordinates into two clusters. Cluster 1 is located at 2°S-9°N and 130°E-135.39°E and cluster 2 is located at 2°S-9°N and 135.4°E-141°E. Based on the analysis using the least squares method is known that a-value in cluster 1 and cluster 2 respectively at 6.644 and 5.624. Cluster 1 had a greater seismic activity than cluster 2. b-values in cluster 1 and cluster 2 respectively at 0.840 and 0.662. Cluster 1 has a greater level of fragility rock than cluster 2. Some earthquake was happened on the mainland in cluster 2 have bigger magnitude than earthquake was happened on the mainland in cluster 1. Therefore, cluster 2’s earthquake more potentially to make a building damage and treaths of victim than cluster 1’s earthquake. Thus, cluster 2 has a greater earthquake risk than the cluster 1. Keywords: seismicity, cluster, the level of risk.
ANALISIS TINGKAT SEISMISITAS DAN PERIODE ULANG GEMPA BUMI DI SUMATERA BARAT PADA PERIODE 1961-2010 Uswatun Chasanah; Madlazim Madlazim; Tjipto Prastowo
Inovasi Fisika Indonesia Vol 2 No 2 (2013)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (932.221 KB) | DOI: 10.26740/ifi.v2n2.p%p

Abstract

Abstrak Kajian kegempaan suatu wilayah terutama di daerah rawan gempa seperti Sumatera Barat sangat diperlukan dalam rangka mengurangi dampak yang ditimbulkan akibat bencana gempa bumi. Dalam konteks ini, dilakukan penelitian yang bertujuan untuk menganalisis tingkat seismisitas dan periode ulang gempa bumi yaitu dengan menganalisis hubungan antara frekuensi kejadian gempa bumi (N) dan magnitudo gempa bumi (M). Rumus umum yang digunakan yaitu log N = a – bM. Gradien persamaan ini atau nilai b merupakan parameter tektonik yang menggambarkan sifat batuan pada daerah yang diteliti sedangkan nilai a menggambarkan aktivitas tektonik wilayah yang diamati. Data yang digunakan dalam penelitian ini merupakan data sekunder parameter gempa bumi dari bank data seismologi IRIS periode 1961-2010 dengan magnitudo 4,0-10,0 SR pada kedalaman 0-220 km yang berlokasi antara 1,0⁰ LU-3,0⁰LS dan 98,0⁰-102,0⁰BT. Berdasarkan hasil analisis dengan menggunakan metode kuadrat terkecil diperoleh nilai a sebesar 6,21 dan b sebesar 0,66, serta indeks seismisitas untuk magnitudo 5-9 SR yaitu antara 10,14-0,02. Harga indeks seismisitas ini digunakan untuk analisis periode ulang gempa bumi. Periode ulang gempa bumi untuk rentang magnitudo 5-9 SR adalah berkisar antara 0,09-45,30 tahun. Secara umum, dapat disimpulkan bahwa wilayah Sumatera Barat memiliki tingkat seismisitas tinggi dan rawan bencana gempa bumi yang dibuktikan dengan periode ulang gempa bumi yang singkat yaitu kurang dari 50 tahun dan sering terjadi gempa-gempa kecil baik di daratan maupun lautan.   Kata kunci : tingkat seismisitas, periode ulang gempa bumi, sumatera barat Abstract Study seismicity pattern, especially in earthquake prone areas such as West Sumatra is needed in order to reduce the impact caused by the earthquake. In this context, the research aims to analyze the level of seismicity and the return period of earthquakes by analyzing the relationship between the frequency of occurrence of earthquakes (N) and the earthquake magnitude (M). The general formula is log N = a - bM, gradient equation or b value is a parameter that describes the nature of tectonic rocks in the area studied, while a value that describes the tectonic activity of observed regions. The data used in this study is a secondary data parameter of earthquake from seismology data bank IRIS from 1961 to 2010 with a magnitude of 4,0 ≥ 10,0 RS at a depth between 0-220 km located within latitude coordinates between 1,0° N-3,0° S and longitude coordinates between 98,0°-102.0° E. Based on the results of the analysis using the least squares method obtained a value is about 6,15 and b value is about 0,65. Index of seismicity for magnitudes 5-9 RS is between 9,677 to 0,022. Further seismicity index is used for the calculation of return period of earthquake. Return period of earthquakes for magnitude 5-9 RS is between 0,10 to 44,45 years. Generally, it can also be concluded that the region of West Sumatra has a high seismicity rate as evidenced by the return period of a short earthquakes and frequent minor earthquakes both land and sea, so that in the region of West Sumatra classified areas prone to earthquakes.   Keywords: level of  seismicity, return period of earthquake, west sumatera
Co-Authors Adi Susilo AFIFI MUTIARANI Alhusni, Hanan Zaki Ali Hasbi Ramadani Anggita Noviasari Aris Doyan Asandi, Ruhi Asyfiya, Divana Zumrotul Binar Kurnia Prahani Budi Jatmiko Choiriyah, Fitrotul Cholisatin, Safira Nur Dawana, Irgy Redityo Dewanti, Adek Putri Diah Hari Kusumawati Fahmi, Muhammad Nurul FATHARANI, ATIKA Fida Rachmadiarti Fitrotul Choiriyah Fuaidah, Nur Handoko, Agus Imam Hariyono, Eko Heri Susanto Husni Mubarok I GUST MADE SANJAYA Indrawati, Yuni Irwan Setyowidodo, Bagus Jaya Santosa Karlin Karlin KIKI SEPTARIA Kurtulus, Muhammed Akif KUSUMAWATI DWI LESTARI Lestari, Nurita Apridiana LILIK WAHYUNI PURLISSTYOWATI Mita Anggaryani Mosse, Yogi Muhammad Habibbulloh MUSLIMIN IBRAHIM Musta, Baba Nadi Suprapto Novalianto, Muhammad Ramdhani Nurdiana, Gika Sukma Nurhaliza, Rahma Oktaviani, Rachma Dwi PERO NIKA FITRIANI Pramesti, Novia Putri, Rasamala I.W Putri, Safirda Adini Rahmatsyah Ramadhan, Yuansyah Dhaniar Ramdhayani, Eryuni Realita, Arie Rehman, Khaista Rizki, Iqbal Ainur Rosmiati Rosmiati ROUDLOTUL JANNAH Rudiana Agustini Safitri, Shabrina Safrian, Alif Haidar Salsabila, Nur Rizqika Ghina Saputra, M. Rizky Satriawan, Muhammad Sa’adatud Daroin Situmeang, Adedio Daniel Solly Aryza Suaebah, Evi Sumarti, Sri Sungkono Sungkono Sunni*, Fajriatul Mufarriha Susanti, Fajaria Meli Suyatno Suyatno Sya'roni, Imam Syahri Syahri Syahri Syahri Titik Taufikurohmah TITIN SUNARTI Tjipto Haryono Tjipto Haryono Tjipto Prastowo Tjipto Prastowo Tsani, Elvira Silvia Uswatun Chasanah Utama Alan Deta Uulaa, Rizki Fitri Rahima Wahono Widodo Wasis Wasis winda pratiwi Yaumi, Yaumi YUNI SRI RAHAYU ZAINUL ARIFIN IMAM SUPARDI ZAINUL FATIK