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Pengembangan Realtime Monitoring Berbasis Delphi 7 Sebagai Upaya Mitigasi Dini Bencana Tanah Longsor PERO NIKA FITRIANI; MADLAZIM MADLAZIM
Inovasi Fisika Indonesia Vol 9 No 1 (2020)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Abstrak Monitoring secara realtime terhadap parameter tanah longsor merupakan suatu upaya mitigasi dini bencana tanah longsor. Teknologi sensor ketika diintegrasikan dengan teknologi interface visual menawarkan cara yang menjanjikan untuk memantau kondisi zona rawan longsor. Artikel ini menjelaskan sistem realtime monitoring dan warning system tanah longsor yang dilakukan oleh teknologi Delphi sebagai basis pengolah data. Sistem monitoring ini dibangun pada Personal Computer (PC) dengan input data dari sensor LSM menggunakan metode ADDIE. Sistem monitoring ini memberikan warning system dan pantauan perubahan parameter tanah longsor secara grafis dengan memperhitungkan faktor keamanan berdasarkan kontribusi kelembapan tanah dan pergeseran tanah pada kemiringan tertentu terhadap kerawanan longsor. Warning system ditampilkan secara spesifik ketika nilai-nilai yang dibatasi tercapai. Selain itu, sistem monitoring juga memberikan informasi mengenai waktu monitoring secara realtime dan nilai besaran parameter. Uji kelayakan sistem monitoring menunjukan bahwa sistem realtime monitoring akurat dengan akurasi 100%. Sehingga, diharapkan melalui teknologi realtime monitoring ini dapat memberikan peringatan dini tanah longsor yang cepat dan akurat sehingga mengurangi jatuhnya korban jiwa. Kata kunci: tanah longsor, realtime, monitoring, warning system Abstract Realtime monitoring of landslide parameters is an early effort to mitigate landslides. Sensor technology when integrated with visual interface technology offers a promising way to monitor landslide prone zones. The paper describes a landsliding monitoring and warning system that is carried out by Delphi technology as a data processing base. This monitoring system was built on a Personal Computer (PC) with LSM sensor data input using the ADDIE method. This monitoring system provides an early warning system and monitors changes in landslide parameters graphically by taking into account the safety factor based on the constribution of soil humidity and land shifts at a certain slope to landslide vulnerability. An early warning system that are specifically displayed when restricted values are reached. In addition, the monitoring system also provides information on realtime monitoring time and parameter value. Monitoring system feasibility test shows that the realtime monitoring system is accurate with 100% accuracy. Through this realtime monitoring technology it is expected to provide a quick and accurate early warning of landslides so as to reduce the victims. Keywords: landslide, realtime, monitoring, warning system

Pengaruh Jarak Transmitter Dan Receiver Terhadap Performasi Modul HC12 Pada Prototipe LSM (Landslide Smart Mitigation) KUSUMAWATI DWI LESTARI; MADLAZIM MADLAZIM
Inovasi Fisika Indonesia Vol 9 No 1 (2020)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Abstrak Pengiriman data melalui modul wireless dipilih pada perangkat prototipe karena lebih efisien dan cepat dalam transmisi data dengan jangkauan jarak tertentu. Selain itu, pengiriman dari transmitter ke receiver pada prototipe LSM dapat menampilkan hasil deteksi secara real time. Metode yang digunakan untuk analisis kinerja pengiriman data modul HC12 pada prototipe LSM adalah metode eksperimen. Pengujian dilakukan dengan memanipulasi jarak dari transmitter ke recaiver setiap perubahan 50m. Parameter nilai deteksi sensor soil moisture dan potensiometer slider dikontrol pada nilai tertentu. Hasil yang didapatkan pada pengujian modul wireless HC12 pada prototipe LSM adalah ketika jarak antara transmitter dan receiver ≥750m, maka receiver (papan informasi digital) tidak dapat menampilkan nilai deteksi sensor sekaligus warning system. Hal ini dikarenakan adanya redaman dan juga noise pada saat penguijian performansi modul HC12 berlangsung. Akan teteapi, modul wireless HC12 lebih tepat dijadikan sebagai perangkat pengiriman data dari transmitter ke receiver pada prototipe LSM untuk monitoring bencana tanah longsor dibandingkan perangkat modul wireless yang lainnya. Sehingga, pemantauan dapat dilakukan secara cepat, akurat, dan real time untuk dapat mengurangi kerugian material dan korban jiwa. Kata kunci: modul wireless HC12; jarak transmisi; loss data Abstract Transmission of data via wireless module was chosen on prototype devices due to its efficiency and speed in transmitting data with a certain distance range. Additionally, transmitter dispatch to the receiver on a prototype of LSM can display the detection results in real time. The HC12 module on the LSM prototype is an experimental method. System evaluation was tested by manipulating the distance from the transmitter to the receiver every 50m. The parameters of the detection value of the soil moisture sensor and potentiometer slider are controlled at a certain value. The results of the HC12 wireless module evaluation on the prototype LSM are when the distance between the transmitter and the receiver ≥750m, the receiver (digital information board) cannot display the sensor detection value as well as the warning system. This is due to the attenuation and also noise during the performance measurement of the HC12 module. But the HC12 wireless module is more appropriate was used as a data transmission device from the transmitter to the receiver on the LSM prototype for monitoring landslides compared to other wireless module devices. Thus, monitoring can be done quickly, accurately, and in real time to be able to reduce material losses and casualties. Key words: HC12 wireless module; transmission distance; data loss

PENGEMBANGAN PERANGKAT PEMBELAJARAN INKUIRI TERBIMBING BERBANTUAN SIMULASI KOMPUTER MATERI ATOM, ION, DAN MOLEKUL UNTUK MENINGKATKAN HASIL BELAJAR SISWA SMP Syahri Syahri; Madlazim Madlazim; Fida Rachmadiarti
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

This research aims to produce a feasible guided inquiry instructional materials by using computer simulation to improve students 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 Careys model. The subjects of this research was instructional materials that consist of syllabus, lesson plan, students 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 students learning achievement.

PENGEMBANGAN PERANGKAT PEMBELAJARAN MODEL NESTEDBERBASIS INKUIRI TERBIMBING UNTUK MENINGKATKAN PEMAHAMAN KONSEP, THINKING SKILL, DAN SOCIAL SKILL PADA SISWA SMP Fitrotul Choiriyah; Madlazim Madlazim; Tjipto Haryono
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

This research was done by developing learning materials (lesson plans, students 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 schools 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) students 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

Determining the Source Parameters of the Jambi Earthquake (1 October 2009, Mw=6.4) Using Three-Component Local Waveforms Madlazim, Madlazim
Makara Journal of Science Vol. 17, No. 1
Publisher : UI Scholars Hub

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

The purpose of this research was to estimate the source parameters of a mainshock earthquake (Mw=6.4) that occurred on 1 October 2009 in the Dikit major segment of the Sumatran Fault Zone (SFZ). The source parameters were analyzed by the inversion of three-component local waveforms recorded by the GEOFON broadband IA network. Moment tensor of the event was determined using the Discrete Wave number method to calculate the Green function and the iterative deconvolution method to invert the moment tensors. From the analysis, we obtained the fault parameters of the mainshock, which are strike=324°, dip= 80° and rake= -173°. Abstra

Earthquakes Sources Parameter Estimation of 20080917 and 20081114 Near Semangko Fault, Sumatra Using Three Components of Local Waveform Recorded by IA Network Station Santosa, Bagus Jaya; Madlazim, Madlazim
Makara Journal of Science Vol. 16, No. 1
Publisher : UI Scholars Hub

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

The 17/09/2008 22:04:80 UTC and 14/11/2008 00:27:31.70 earthquakes near Semangko fault were analyzed to identify the fault planes. The two events were relocated to assess physical insight against the hypocenter uncertainty. The data used to determine source parameters of both earthquakes was three components of local waveform recorded by Geofon broadband IA network stations, (MDSI, LWLI, BLSI and RBSI) for the event of 17/09/2008 and (MDSI, LWLI, BLSI and KSI) for the event of 14/11/2008. Distance from the epicenter to all station was less than 5°. Moment tensor solution of two events was simultaneously analyzed by determination of the centroid position. Simultaneous analysis covered hypocenter position, centroid position and nodal planes of two events indicated Semangko fault planes. Considering that the Semangko fault zone is a high seismicity area, the identification of the seismic fault is important for the seismic hazard investigation in the region.

AKURASI PERBANDINGAN SOLUSI CENTROID MOMENT TENSOR (CMT) GEMPA BUMI SECARA REAL-TIME DAN OTOMATIS DI WILAYAH SUMATRA MENGGUNAKAN METODE GISOLA PADA SOFTWARE JOKOTINGKIR: Kata Kunci: centroid moment tensor, real-time, Gisola, FDSNWS, JokoTingkir Tsani, Elvira Silvia; Madlazim, Madlazim; Fahmi, Muhammad Nurul
Inovasi Fisika Indonesia Vol. 13 No. 1 (2024): Vol 13 No 1
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v13n1.p34-42

Abstrak Gempa Bumi merupakan bencana kebumian yang sering terjadi di wilayah Sumatra, Indonesia, sehingga memerlukan pemantauan dan analisis yang cepat dan akurat untuk mitigasi resiko bencana terutama dalam menentukan CMT gempa bumi. Tujuan penelitian ini adalah untuk mengetahui perbandingan dan cara merevisi hasil penentuan CMT secara real-time dan otomatis pada event gempa bumi di wilayah Sumatra menggunakan metode Gisola pada software JokoTingkir. Salah satu software geofisika yang dapat digunakan secara real-time otomatis dan manual adalah software Gisola yang juga di implementasikan pada software JokoTingkir. Penentuan CMT gempa bumi ini disesuaikan dengan kondisi geologi di Indonesia dan sekitarnya dengan cara menginput model kecepatan yang cocok di wilayah Indonesia dan memfilter frekuensi waveform guna mengurangi banyaknya noise dalam gelombang seismik. Selain itu menggunakan rekaman data seismogram dari stasiun seismik. Software JokoTingkir menghasilkan solusi CMT secara real-time dan otomatis, dimana data yang direkam merupakan data seismik atau data waveform dengan cakupan secara regional dengan magnitude mulai 5-8 yang terdeteksi oleh Federasi Internasional Layanan Web Jaringan Seismograf Digital (FDSNWS) dan waktu tempuh yang dibutuhkan untuk mengolah kurang lebih 15 menit pada jarak 500 km sampai dengan 1000 km. Kemudian parameter gempa tersebut secara otomatis dipublikasikan di web sesuai dengan kualitas gempa bumi. Hasil penelitian ini diperoleh R squared untuk tiap parameter strike, dip dan rake Nilai parameter dari JokoTingkir itu hampir mendekati nilai dari GCMT. Sehingga nilai r squared yang dihasilkan oleh parameter strike, dip, dan rake itu diatas 80% atau 0,8. Hal ini menyatakan bahwa penggunaan metode Gisola pada software JokoTingkir bisa dikatakan valid atau reliable. Kata Kunci: centroid moment tensor, real-time, Gisola, FDSNWS, JokoTingkir Abstract Earthquakes are a natural disaster that often occurs in the Sumatra region, Indonesia, so they require fast and accurate monitoring and analysis to mitigate disaster risks, especially in determining the CMT of earthquakes. The purpose of this research is to find out the comparison and how to revise the results of determining CMT real-time and auto on event earthquakes in the Sumatra region using the Gisola method on software JokoTingkir. One of software usable geophysics real-time automatic and manual is software Gisola which is also implemented in software JokoTingkir. The CMT determination for this earthquake is adjusted to the geological conditions in Indonesia and its surroundings by inputting a suitable velocity model in the Indonesian region and filtering the frequency waveform to reduce the number noise in seismic waves. In addition, it uses recorded seismogram data from seismic stations. Software JokoTingkir produces CMT solutions for free real-time and automatic, where the recorded data is seismic data or data waveform with regional coverage with magnitudes ranging from 5-8 detected by the International Federation of Digital Seismograph Network Web Services (FDSNWS) and the travel time required to process approximately 15 minutes at a distance of 500 km to 1000 km. Then the earthquake parameters are automatically published on the web according to the quality of the earthquake. The results of this study were obtained by R squared for each parameter strike, dip and rake. The parameter value from Joko Tingkir is almost close to the value from GCMT. So value r squared generated by the parameters strike, dip, and rake it is above 80% or 0.8. This states that the use of the Gisola method on software JokoTingkir can be said to be valid or reliable. Keywords: centroid moment tensor, real-time, Gisola, FDSNWS, JokoTingkir

AKURASI PERHITUNGAN CENTROID MOMENT TENSOR (CMT) GEMPA BUMI SECARA REAL TIME DAN OTOMATIS MENGGUNAKAN METODE GISOLA DI WILAYAH JAWA Nurhaliza, Rahma; Madlazim, Madlazim
Inovasi Fisika Indonesia Vol. 13 No. 1 (2024): Vol 13 No 1
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v13n1.p43-48

Abstrak Gempa Bumi merupakan bencana kebumian yang sering terjadi di wilayah Sumatra, Indonesia, sehingga memerlukan pemantauan dan analisis yang cepat dan akurat untuk mitigasi resiko bencana terutama dalam menentukan CMT gempa bumi. Tujuan penelitian ini adalah untuk mengetahui perbandingan dan cara merevisi hasil penentuan CMT secara real-time dan otomatis pada event gempa bumi di wilayah Sumatra menggunakan metode Gisola pada software JokoTingkir. Salah satu software geofisika yang dapat digunakan secara real-time otomatis dan manual adalah software Gisola yang juga di implementasikan pada software JokoTingkir. Penentuan CMT gempa bumi ini disesuaikan dengan kondisi geologi di Indonesia dan sekitarnya dengan cara menginput model kecepatan yang cocok di wilayah Indonesia dan memfilter frekuensi waveform guna mengurangi banyaknya noise dalam gelombang seismik. Selain itu menggunakan rekaman data seismogram dari stasiun seismik. Software JokoTingkir menghasilkan solusi CMT secara real-time dan otomatis, dimana data yang direkam merupakan data seismik atau data waveform dengan cakupan secara regional dengan magnitude mulai 5-8 yang terdeteksi oleh Federasi Internasional Layanan Web Jaringan Seismograf Digital (FDSNWS) dan waktu tempuh yang dibutuhkan untuk mengolah kurang lebih 15 menit pada jarak 500 km sampai dengan 1000 km. Kemudian parameter gempa tersebut secara otomatis dipublikasikan di web sesuai dengan kualitas gempa bumi. Hasil penelitian ini diperoleh R squared untuk tiap parameter strike, dip dan rake Nilai parameter dari JokoTingkir itu hampir mendekati nilai dari GCMT. Sehingga nilai r squared yang dihasilkan oleh parameter strike, dip, dan rake itu diatas 80% atau 0,8. Hal ini menyatakan bahwa penggunaan metode Gisola pada software JokoTingkir bisa dikatakan valid atau reliable. Kata Kunci: centroid moment tensor, real-time, Gisola, FDSNWS, JokoTingkir Abstract Earthquakes are a natural disaster that often occurs in the Sumatra region, Indonesia, so they require fast and accurate monitoring and analysis to mitigate disaster risks, especially in determining the CMT of earthquakes. The purpose of this research is to find out the comparison and how to revise the results of determining CMT real-time and auto on event earthquakes in the Sumatra region using the Gisola method on software JokoTingkir. One of software usable geophysics real-time automatic and manual is software Gisola which is also implemented in software JokoTingkir. The CMT determination for this earthquake is adjusted to the geological conditions in Indonesia and its surroundings by inputting a suitable velocity model in the Indonesian region and filtering the frequency waveform to reduce the number noise in seismic waves. In addition, it uses recorded seismogram data from seismic stations. Software JokoTingkir produces CMT solutions for free real-time and automatic, where the recorded data is seismic data or data waveform with regional coverage with magnitudes ranging from 5-8 detected by the International Federation of Digital Seismograph Network Web Services (FDSNWS) and the travel time required to process approximately 15 minutes at a distance of 500 km to 1000 km. Then the earthquake parameters are automatically published on the web according to the quality of the earthquake. The results of this study were obtained by R squared for each parameter strike, dip and rake. The parameter value from Joko Tingkir is almost close to the value from GCMT. So value r squared generated by the parameters strike, dip, and rake it is above 80% or 0.8. This states that the use of the Gisola method on software JokoTingkir can be said to be valid or reliable. Keywords: centroid moment tensor, real-time, Gisola, FDSNWS, JokoTingkir

PENENTUAN AKURASI CENTROID MOMENT TENSOR (CMT) GEMPABUMI SECARA REAL-TIME DAN OTOMATIS DI SULAWESI DENGAN METODE GISOLA PADA SOFTWARE JOKO TINGKIR Asandi, Ruhi; Madlazim, Madlazim; Fahmi, Muhammad Nurul
Inovasi Fisika Indonesia Vol. 13 No. 1 (2024): Vol 13 No 1
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v13n1.p49-61

Abstrak Gempabumi tektonik realtif sering terjadi di Indonesia, gempabumi tektonik merupakan gempa yang dipicu karena adanya pergerakan pada lempeng tektonik. Sulawesi merupakan salah satu daerah relatif rawan terhadap gempabumi di Kepulauan Indonesia. Peneltian ini memiliki tujuan untuk menganalisis akurasi Centroid Momen Tensor (CMT) hasil penentuan real-time dan otomatis serta untuk mengetahui cara merevisi dari hasil penentuan CMT gempabumi real-time dan otomatis menggunakan metode Gisola dalam software Joko Tingkir pada gempabumi di Sulawesi. Penelitian ini berbasis komputasi dengan menggunakan metode Gisola, dengan variabel manipulasi yaitu sample frekuensi waveform, stasiun seismik, dan model kecepatan. Variabel kontrolnya yaitu Sulawesi sebagai daerah penelitian dan tahun kejadian gempabumi 2018-2022. Kemudian variabel responya yaitu parameter CMT gempabumi yaitu centroid time, magnitude, latitude, longitude, depth dan beachball. Berdasarkan analisis yang telah dilakukan dengan melakukan analisis parameter CMT seperti membandingkan nilai strike, dip dan rake diperoleh hasil bahwa nilai R-square strike 87.92 %; R-square dip 94.28%; R-square rake 90.76%, nilai tersebut identik dengan Global Centroid Moment Tensor (GCMT). Gempabumi terkenal di Sulawesi yang terjadi pada tanggal 28 September 2018 memiliki mekanisme strike-slip. Revisi dari hasil CMT gempabumi real-time dan otomatis menggunakan metode Gisola dalam software Joko Tingkir pada gempa di Sulawesi dilakukan dengan cara penyesuain stasiun seismik yang merekam, sample frekuensi data waveform yang digunakan, serta model kecepatan yang digunakan. Kata Kunci: Gempabumi, Centroid Momen Tensor (CMT), Gisola, Joko Tingkir, Strike, dip, dan rake Abstract Tectonic earthquakes are relatively common in Indonesia, tectonic earthquakes are earthquakes that are triggered due to movement in the tectonic plates. Sulawesi is one of the areas relatively prone to earthquakes in the Indonesian Archipelago. This research aims to analyze the accuracy of the Centroid Moment Tensor (CMT) results from real-time and automatic determinations and to find out how to revise the results from real-time and automatic CMT determinations for earthquakes using the Gisola method in Joko Tingkir software for earthquakes in Sulawesi. This research is computationally based using the Gisola method, with manipulated variables, namely waveform frequency samples, seismic stations, and velocity models. The control variables are Sulawesi as the research area and the year the earthquake occurred 2018-2022. Then the response variables are the earthquake CMT parameters, namely centroid time, magnitude, latitude, longitude, depth and beachball. Based on the analysis that has been carried out by analyzing CMT parameters such as comparing strike, dip and rake values, the results show that the R-square strike value is 87.92%; R-square dip 94.28%; R-square rake is 90.76%, this value is identical to the Global Centroid Moment Tensor (GCMT). The famous earthquake in Sulawesi that occurred on September 28 2018 had a strike-slip mechanism. Revision of real-time and automatic earthquake CMT results using the Gisola method in Joko Tingkir software for the earthquake in Sulawesi was carried out by adjusting the seismic station that recorded it, the frequency sample of the waveform data used, and the velocity model used. Keywords: Earthquake, Centroid Moment Tensor (CMT), Gisola, Joko Tingkir, Strike, dip, and rake

ANALISIS KEAKURATAN CENTROID MOMENT TENSOR (CMT) GEMPA BUMI SECARA REAL-TIME DAN OTOMATIS PADA SOFTWARE JOKO TINGKIR DENGAN GLOBAL CMT DI WILAYAH MALUKU MENGGUNAKAN METODE GISOLA: Kata kunci : Centroid Moment Tensor, Joko Tingkir, Global CMT Nurdiana, Gika Sukma; Madlazim, Madlazim; Fahmi, Muhammad Nurul
Inovasi Fisika Indonesia Vol. 13 No. 1 (2024): Vol 13 No 1
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v13n1.p62-69

Abstrak Centroid Moment Tensor (CMT) memiliki pemodelan momen tensor gempa dengan metode inversi waveform 3 komponen lebih baik jika menggunakan waktu tempuh, dikarenakan metode origin time berkesinambungan dengan kedalaman centroid. Penentuan CMT meliputi model kecepatan melalui gelombang seismik, stasiun seismik dan magnitudo. Nilai pada parameter CMT memiliki tujuan untuk mengetahui patahan dan karakteristik pada suatu gempa bumi. Software Joko Tingkir menampilkan parameter CMT secara lengkap. Penelitian ini bertujuan untuk mengetahui cara merevisi CMT pada gempa bumi yang memiliki nilai di bawah syarat dari standar yang telah ditentukan serta membandingkan nilai CMT gempa bumi software Joko Tingkir dengan Global CMT untuk dianalisis keakurasiannya. Hasil pada penelitian ini menunjukan bahwa merevisi CMT gempa bumi dengan mengubah stasiun seismik, nilai frekuensi dan model kecepatan serta nilai keakurasian pada CMT Joko Tingkir dengan Global CMT dibuktikan pada nilai r-squared untuk masing-masing parameter gempa bumi nilai strike pada perbandingan GCMT dengan Joko Tingkir yaitu 0,998 dan nilai rake yaitu 0,9286 Nilai ini menunjukan kecocokan antara parameter gempa bumi Joko Tingkir dengan parameter gempa bumi Global CMT sedangkan nilai dip yaitu 0,6754 yang dapat dianalisa bahwa nilai dip lebih rendah dapat dikarenakan metode antara Joko Tingkir dan GCMT berbeda yaitu GCMT menggunakan data teleseismik sedangkan Joko Tingkir menggunakan data regional. Kata kunci : Centroid Moment Tensor, Joko Tingkir, Global CMT Abstract The Centroid Moment Tensor (CMT) involves modeling earthquake moment tensor using the three-component waveform inversion method, which is more effective when using travel times. This is because the origin time method is closely related to the centroid depth. CMT determination includes velocity model through seismic waves, seismic stations, and magnitude. CMT also displays fault types that can trigger earthquakes, namely Isometric (ISO), Double-Couple (DC), Compensated Linear Vector Dipole (CLVD), and Variance Reduction (VR). The values of CMT parameters aim to understand faults and characteristics of an earthquake. Joko Tingkir, presents CMT parameters comprehensively. This research aims to determine how to revise CMT for earthquakes that have values below the specified standard criteria and to compare the CMT values of earthquakes from the Joko Tingkir software with Global CMT for accuracy analysis. The Gisola method is employed in this study. The result of this study show that revising earthquake CMT by changing seismic stations, frequency values, and velocity models, and the accuracy values for Joko Tingkir CMT compared to Global CMT are confirmed in the r-squared values for each earthquake parameter. The comparison show that for strike, the r-squared value is 0.998, and for rake, it is 0.9286, indicating a high correlation between the earthquake parameters in Joko Tingkir and Global CMT. However, the r-squared value for dip is 0.6754, suggesting a lower correlation, likely due to differences in the methods used by Joko Tingkir and GCMT, where GCMT uses teleseismic data while Joko Tingkir uses regional data. Keywords Centroid Moment Tensor, Joko Tingkir, Global CMT

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