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Pengembangan Perangkat Pembelajaran untuk Mendukung Multimedia Interaktif Fisitekh pada ‎Pokok Bahasan Alat Optik Kelas VIII SMP Noviasari, Anggita; Madlazim, Madlazim
IPF: Inovasi Pendidikan Fisika Vol. 2 No. 2 (2013): Vol. 2 No. 2 Tahun 2013
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mendeskripsikan proses pengembangan perangkat pembelajaran, mengetahui kelayakan perangkat pembelajaran guna mendukung multimedia interaktif Fisitekh pada materi alat optik kelas VIII di SMPN 1 Prambon dan mengetahui keterlaksanaan perangkat yang meliputi hasil respon, ketuntasan hasil belajar, serta proses pelaksanaan pembelajaran dengan perangkat yang dikembangkan. Penelitian ini mengacu pada model 4-D yang dikemukakan Thiagarajan, yaitu 1) tahap pendefinisian (define), 2) tahap perencanaan (design), 3) tahap pengembangan (develop), 4) tahap penyebaran (disseminate). Namun penelitian ini hanya dibatasi sampai tahap pengembangan. Perangkat yang telah dikembangkan di validasi oleh 2 dosen Fisika UNESA dan guru IPA-Fisika SMPN 1 Prambon. Uji coba terbatas perangkat pembelajaran dilakukan pada 36 siswa SMPN 1 Prambon. Penilaian terhadap perangkat secara umum meliputi silabus, RPP, LKS, buku siswa dan lembar penilaian memperoleh skor prosentase kelayakan berturut turut 83%;85%;85%;84% dan 90%, sehingga perangkat pembelajaran untuk mendukung multimedia interaktif Fisitekh layak untuk digunakan dengan kategori baik. Hasil pengamatan keterlaksanaan meliputi respon siswa terhadap perangkat pembelajaran yang telah dikembangkan adalah siswa merespons baik. Nilai hasil belajar siswa diperoleh dari gabungan ketiga aspek nilai yaitu kognitif, afektif dan psikomotor, seluruh siswa dinyatakan tuntas. Selain itu Dari hasil uji coba juga diperoleh bahwa guru telah melakukan pembelajaran Fisika dengan sangat baik yaitu dengan skor 3,5.
ANALISIS KEAKURATAN SOLUSI CENTROID MOMENT-TENSOR (CMT) PADA JOKO TINGKIR MENGGUNAKAN METODE MEAN ABSOLUTE ERROR (MAE) DAN SUDUT KAGAN DI WILAYAH JAWA TIMUR Novalianto, Muhammad Ramdhani; Madlazim, Madlazim; Realita, Arie
Inovasi Fisika Indonesia Vol. 14 No. 2 (2025): Vol 14 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v14n2.p243-252

Abstract

Abstrak Wilayah Jawa Timur merupakan kawasan aktif secara tektonik yang rawan terjadi gempa bumi. Untuk menunjang mitigasi bencana, diperlukan pemahaman yang akurat terhadap mekanisme sumber gempa. Penelitian ini bertujuan untuk mengevaluasi kualitas solusi Centroid Moment-Tensor (CMT) dari sistem Joko Tingkir dengan membandingkannya terhadap solusi dari GlobalCMT. Metode yang digunakan mencakup Mean Absolute Error (MAE) untuk menilai selisih absolut parameter mekanisme sumber (strike, dip, rake) dan sudut Kagan untuk mengukur kesesuaian orientasi bidang patahan. Hasil menunjukkan bahwa nilai MAE masing-masing adalah 64,5° (strike), 14,00° (dip), dan 27,17° (rake). Sementara itu, sudut Kagan berada dalam rentang 2,066° hingga 22,814°, yang masih di bawah ambang batas toleransi 60°. Temuan ini menunjukkan bahwa solusi CMT dari Joko Tingkir cukup konsisten dengan GlobalCMT dan dapat dijadikan referensi awal dalam analisis mekanisme gempa bumi di Jawa Timur. Abstract East Java is one of Indonesia’s tectonically active regions with high seismic risk. To support disaster mitigation, accurate understanding of earthquake source mechanisms is essential. This study aims to assess the accuracy of Centroid Moment Tensor (CMT) solutions generated by Joko Tingkir software by comparing them with GlobalCMT solutions. The Mean Absolute Error (MAE) method was employed to evaluate absolute differences in strike, dip, and rake parameters, while Kagan angle was used to assess the consistency of fault plane orientation. The results show MAE values of 64.5° for strike, 14.00° for dip, and 27.17° for rake. The Kagan angles ranged from 2.066° to 22.814°, well below the 60° tolerance threshold. These findings indicate that Joko Tingkir’s CMT solutions are sufficiently accurate and consistent with GlobalCMT data for preliminary earthquake source mechanism estimation in East Java.
Analisis Keakuratan Katalog Data Gempa Bumi Indonesia pada Software Joko Tingkir terhadap Global Centroid Moment Tensor (GCMT) menggunakan Uji-T Berpasangan, Wilcoxon, dan Sudut Kagan Dewanti, Adek Putri; Madlazim, Madlazim; Fahmi, Muhammad Nurul
Inovasi Fisika Indonesia Vol. 14 No. 2 (2025): Vol 14 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v14n2.p178-201

Abstract

Abstrak Penelitian ini dilakukan dengan tujuan untuk menganalisis keakuratan focal mechanism yang dihasilkan software Joko Tingkir terhadap GCMT dengan perhitungan sudut Kagan dan menganalisis keakuratan data katalog Joko Tingkir terhadap GCMT melalui perhitungan uji-t berpasangan dan Wilcoxon ditinjau dari hipotesis yang telah ditetapkan. Data yang diuji memiliki magnitudo momen  ≥ 5,0 selama periode 2020-2024 dengan lima daerah penelitian yaitu daerah Jawa, Sumatera, Sulawesi, Maluku, Nusa Tenggara, dan Papua. Parameter yang diuji diantaranya waktu kejadian (origin time), kedalaman, longitude, latitude, dan focal mechanism diantaranya strike, dip, rake. Seluruh data gempa memiliki karakteristik gempa bumi tektonik atau presentase komponen Double Couple (DC) lebih dominan. Hasil perhitungan sudut Kagan dari 50 data uji menunjukkan tidak ada yang mencapai batas 60° sebagaimana dikemukakan oleh Kagan (1991). Nilai ini mengindikasikan bahwa focal mechanism dan bentuk beachball yang dihasilkan oleh software Joko Tingkir relatif sesuai dan homogen terhadap GCMT. Selain itu, nilai-t dari hasil uji-t berpasangan pada parameter kedalaman (-0,88), dip (1,64), dan longitude (-1,23) tidak ada yang mencapai nilai-t kritis . Begitupula untuk nilai z-score dari Wilcoxon pada parameter magnitudo momen (-1,46), strike (-0,25), rake (-0,69) dan latitude (-0,32) tidak ada yang mencapai nilai-z kritis . Dapat disimpulkan bahwa semua parameter peneilitian tidak memiliki perbedaan signifikan antara data katalog Joko Tingir terhadap GCMT.   Abstract This study was conducted with the aim of analyzing the accuracy of focal mechanisms produced by the Joko Tingkir software compared to GCMT using Kagan angle calculations, as well as assessing the accuracy of the Joko Tingkir catalog data against GCMT through paired t-test and Wilcoxon test calculations based on the established hypotheses. The tested data consist of earthquakes with a moment magnitude  ≥ 5.0 during the 2020–2024 period across five study regions: Java, Sumatra, Sulawesi, Maluku, Nusa Tenggara, and Papua. The parameters analyzed include origin time, depth, longitude, latitude, and focal mechanism parameters such as strike, dip, and rake. All tested earthquakes exhibit tectonic characteristics or a dominant Double Couple (DC) component. The Kagan angle results from 50 test data points showed that none exceeded the 60° threshold as stated by Kagan (1991). This indicates that the focal mechanisms and beachball diagrams generated by the Joko Tingkir software are relatively consistent and homogeneous with those of GCMT. In addition, the t-values from the paired t-test for the parameters of depth (-0.88), dip (1.64), and longitude (-1.23) did not reach the critical t-value of ±2.01. Similarly, the z-scores from the Wilcoxon test for the parameters of moment magnitude (-1.46), strike (-0.25), rake (-0.69), and latitude (-0.32) did not reach the critical z-value of ±1.96. It can be concluded that none of the parameters in this study showed significant differences between the Joko Tingkir catalog data and GCMT.
DETERMINATION OF RUPTURE DIRECTIVITY USING THE LEVENBERG-MARQUARDT ALGORITHM: A CASE STUDY PHILIPPINE EARTHQUAKE (15 DECEMBER 2019 M_w 6.8) Fahmi, Muhammad Nurul; Sungkono, Sungkono; Madlazim, Madlazim
Indonesian Physical Review Vol. 6 No. 1 (2023)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v6i1.199

Abstract

Earthquake source mechanisms are used to determine local geological characteristics and hazard mitigation. There are several approaches to determine the mechanism of earthquake. In this paper, the relative time of the rupture duration is applied to determine rupture directivity. In determining rupture directivity, the Levenberg-Marquardt (LM) method is proposed to solve the inversion problem. To test the reliability of this method, teleseismic data with an epicentral distance of 40o from the Philippine earthquake on 15 December 2019  6.8, which had a good seismic station distribution with a total of 35 stations, is used. Telesismic data from each station is filtered in the range of 0.25 to 1 Hz to obtain an accurate rupture duration. Furthermore, the rupture duration data set was inverted using the LM method to obtain the direction of earthquake rupture. The results obtained by the curve fitting using the LM method had a good agreement between the observed data and the calculated data. From the curve fitting results, the rupture propagated in the NW direction with azimuth 320.60o ± 2.30o, and this had the same results from previous studies. Therefore, from rupture directivity, the actual fault plane of this earthquake was NP1 which had a strike/dip/rake value of 321o/75o/13o, respectively. The results indicate that the Philippines earthquake of 15 December 2019 had the SE-NW fault orientation, which is part of the Cotabato fault system. The implication of this research is for a preliminary study related to the characteristics of earthquake rupture in areas that have a high level of seismicity. Thus, local residents can avoid areas where ruptures propagate when carrying out earthquake mitigation.
Profile of High School Student’s Scientific Literacy to Support SDGs’13 (Climate Action) on the Global Warming Phenomenon Lestari, Nurita Apridiana; Pratiwi, Winda; Uulaa, Rizki Fitri Rahima; Hariyono, Eko; Madlazim, Madlazim
Tarbiyah : Jurnal Ilmiah Kependidikan Vol. 13 No. 2 (2024): December
Publisher : Universitas Islam Negeri Antasari Banjarmasin, South Kalimantan, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18592/tarbiyah.v13i2.13787

Abstract

The low level of scientific literacy skills is attributed to the lack of application of scientific literacy principles, the inability to interpret tables and graphs, and students' limited understanding of basic scientific concepts related to the SDGs'13. This research aims to analyze the scientific literacy abilities of 10th-grade students at SMAN 1 Surabaya in relation to supporting SDGs'13 on the Global Warming Phenomenon. The research method used is descriptive and mixed method approach. The research design involves an explanatory sequential design. The research findings indicate that the average score of 10th grade students at SMAN 1 Surabaya is 65.2, which falls within the satisfactory category. Factors contributing to the suboptimal scientific literacy abilities include the inadequate application of scientific literacy competencies in teaching, teacher’s not to familiarize students with scientific analysis of phenomena, and the continued use of conventional teaching methods. There is a lack of experimental activities that encourage students to engage with scientific data and produce experimental reports. Therefore, there is a need for innovative learning methods and tools, such as integrating the topic of global warming with the SDGs'13 climate action concept and implementing a problem based learning model. These approaches aim to foster critical thinking and environmental awareness among students, enabling them to address global issues and contribute to environmental preservation in the face of climate change. Ultimately, the goal is to ensure that knowledge about preventing climate change can be applied by students in their daily lives in the long term.
Learning from Earthquakes: The Role of Socio-Scientific Issues in Developing Students’ Science Argumentation Skills Fatharani, Atika; Madlazim, Madlazim; Anggaryani, Mita; Satriawan, Muhammad; Septaria, Kiki
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol. 14 No. 1: January 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v14i1.16362

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This study aims to develop and test the effectiveness of learning modules based on Socio-Scientific Issues with Problem-Based Learning (SSI-PBL) approach in improving students' scientific argumentation skills on the topic of earthquake mitigation. The research method used is Research and Development with the 4D model (Define, Design, Develop, Disseminate) involving 95 grade VIII students at SMP Negeri 1 Maduran, Lamongan. Data collection techniques included scientific argumentation tests (pre-test and post-test), observation of student activities and learning implementation, and student response questionnaires. Data were analyzed descriptively quantitatively and inferentially using paired t-test, gain score and ANOVA test to measure skill improvement. The results showed a significant improvement in students' argumentation skills, with an average post-test score of 68% compared to 21% in the pre-test, as well as improvements in the indicators of claims (from 28% to 72%), use of data (15% to 65%), and preparation of rebuttal (25% to 58%). The SSI-PBL design facilitated deeper engagement by situating students in authentic, real-world contexts that required critical examination of seismic data, policy debates, and ethical considerations. These findings suggest that the SSI-PBL module is able to bridge the gap between theory and practice in disaster learning and strengthen 21st century skills such as critical thinking, problem solving, and public policy literacy. Results underscore the module’s effectiveness in fostering scientific literacy, critical thinking, and policy awareness, essential for disaster-resilient communities.
HVSR-Based Microzonation of Natural Frequency, Amplification, Vulnerability Index, and Ground Shear-Strain in Malang City, East Java Situmeang, Adedio Daniel; Saputra, M. Rizky; Ramadhan, Yuansyah Dhaniar; Cholisatin, Safira Nur; Asyfiya, Divana Zumrotul; Madlazim, Madlazim; Fahmi, Muhammad Nurul; Safrian, Alif Haidar; Putri, Rasamala I.W; Realita, Arie
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol. 14 No. 1: January 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v14i1.17820

Abstract

Seismic activity in Malang City is very high due to tectonic dynamics in the subduction zone between the Indian-Australian and Eurasian plates and the active local faultsm, including the northeast-southwest trending Watukosek Fault, and the east-west fault around the Pasuruan Fault, which have the potential to cause damaging ground shaking in Malang City. The BMKG also recorded an earthquake with a magnitude of 4.5 Mw on March 16, 2025. Based on these events, this study was conducted to analyze the vulnerability of Malang City, East Java, using the Horizontal-Vertical Spectral Ratio (HVSR) method by integrating the parameters of natural frequency (f0), amplification (Ag), soil vulnerability index (Kg), and Ground Shear-Strain (γ).  A total of 19 points were processed using Geopsy software to obtain the HVSR curve and obtain the f₀ and Ag values, while Kg and γ were obtained from processing the HVSR parameters and then mapped through spatial interpolation in ArcGIS. The results of data processing and analysis show that several points in Malang City have f0 1.448 - 9.938 Hz with amplification 1.704 - 6.639 and soil vulnerability index values 0.383 - 14.871, as well as shear strain values up to 0.009. Zones are mainly concentrated by high amplification and vulnerability are mainly concentrated in the northern part of Kedungkandang District, the eastern part of Blimbing District, and parts of Lowokwaru District, which are dominated by higher frequencies with low amplification, as well as the western part of Sukun District, indicating a high level of earthquake risk.  While previous studies primarily utilized only utilized natural frequencies and amplification, whereas this study offers HVSR-based microzonation by integrating dynamic soil parameters (f₀, Ag, Kg, and γ).
A Hybrid Ensemble Framework for Probabilistic Earthquake Forecasting in Northern California in Support of SDG 11: Sustainable and Resilient Cities Madlazim, Madlazim; Musta, Baba; Doyan, Aris; Susilo, Adi; Rehman, Khaista
AMPLITUDO : Journal of Science and Technology Innovation Vol. 5 No. 1 (2026): February
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/amplitudo.v5i1.496

Abstract

Forecasting earthquakes is still one of the most difficult problems in geophysics, mainly because seismic activity is irregular and often influenced by many factors that interact in complex ways. In this study, we develop a leakage-controlled hybrid ensemble model that combines CatBoost, LightGBM, XGBoost, and Gradient Boosting to predict five earthquake parameters: magnitude, depth, latitude, longitude, and a scaled inter-event interval in Northern California. These models were trained using USGS earthquake data ranging from 1900 to 2025 (M ≥ 4.0), with a process designed to prevent time leakage through strict time separation, a moving window feature, and prospective validation. Overall, the hybrid models produced consistently low MAE and RMSE values ​​and very high R² values ​​(above 0.99) for all target variables. While the estimates performed impressively, the results should be interpreted in a probabilistic context, with recognition of the inherent uncertainty of seismic processes. The framework proposed here provides a clear and replicable approach that can support the development of systems for more reliable short-term earthquake forecasting
Mapping Students' Science Literacy Skills Using Local Wisdom-Based Physics Instruments Alhusni, Hanan Zaki; Prahani, Binar Kurnia; Sunarti, Titin; Madlazim, Madlazim; Kurtuluş, Muhammed Akif
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol. 14 No. 2: April 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v14i2.17680

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This study addresses Indonesian students’ low scientific literacy (PISA 2022) by developing and validating a Tari Boranan Lamongan–contextualized physics assessment instrument on rigid body equilibrium. Existing PISA-aligned tests are rarely embedded in local culture. At the same time, local wisdom materials often do not measure all eight PISA scientific literacy indicators, creating a gap for culturally resonant yet comprehensive diagnostic tools. This study aimed to (1) develop and validate an eight-indicator, PISA-aligned scientific literacy instrument, (2) map Grade XI students’ literacy profiles across the eight indicators, and (3) explore how the Boranan context shapes students’ engagement and reasoning. Using a mixed-method embedded design, 73 Grade XI students in Lamongan Regency completed eight essay-based literacy tasks, and ten students participated in semi-structured interviews. Expert validation indicated high content relevance, cultural authenticity, and indicator alignment, and reliability analysis yielded Cronbach’s alpha = 0.82. Results showed most students were in the very low and low categories, with relative strengths in interpreting data (45%) and explaining phenomena (38%), but pronounced weaknesses in designing investigations (28%), evaluating credibility of information (25%), and making evidence-based decisions (30%). Interviews confirmed that cultural context enhanced engagement and visualization but did not automatically support mathematical formalization. These findings suggest that the instrument can be used diagnostically to help teachers design targeted scaffolding for higher-order literacy skills, particularly in investigation design, credibility evaluation, and evidence-based decision-making, within culturally responsive physics learning.
DEEP INTRASLAB DEFORMATION OFFSHORE NORTHERN JAVA REVEALED BY TIME-DOMAIN MOMENT TENSOR (TDMT) INVERSION Fahmi, Muhammad Nurul; Indrawati, Yuni; Realita, Arie; Madlazim, Madlazim
Indonesian Physical Review Vol. 9 No. 2 (2026)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v9i2.564

Abstract

This study investigates deep-focus intraslab deformation offshore Northern Java by analyzing two recent major earthquakes: 6 July 2020 (  6.67) and 14 April 2023 (  6.96), occurring at centroid depths of ~500–600 km. The objective is to constrain the source mechanisms and infer the prevailing deformation regime within the subducting Indo-Australian slab. We perform time-domain moment tensor (TDMT) inversion of broadband waveforms (GE/GEOFON network) using MTTime, with standard preprocessing (instrument correction and band-pass filtering) and Green’s functions computed from the 1-D ak135 velocity model. Centroid depth is refined via a grid search that maximizes waveform variance reduction (VR). The preferred solutions show good waveform agreement (VR = 82.0% for the 2020 event and 71.6% for the 2023 event) and are consistent with Global CMT solutions (Kagan angles = 7.04° and 6.31°, respectively). Both earthquakes exhibit oblique normal faulting with a persistent dextral strike-slip component, indicating a dominantly extensional stress regime at depth, likely driven by slab pull/gravitational sinking, while the consistent trench-parallel shear suggests more complex internal slab deformation. These results provide quantitative constraints on deep intraslab kinematics beneath Java and motivate expanded event sampling for a more robust regional interpretation.
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