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ORNE Learning Model to Improve Problem-Solving Skills of Physics Bachelor Candidates: An Alternative Learning in the Covid-19 Pandemic Binar Kurnia Prahani; Ali Hasbi Ramadani; Diah Hari Kusumawati; Nadi Suprapto; Madlazim Madlazim; Budi Jatmiko; Zainul Arifin Imam Supardi; Husni Mubarok; Shabrina Safitri; Utama Alan Deta
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 10 No. 1 (2020)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v10n1.p71-80

In this industrial revolution 4.0 era, professional science, technology, engineering, and mathematics (STEM) bachelor must have various skills. One of which is problem-solving skills. The development of problem-solving skills (PSS) is very important in higher education. Students must have PSS that must be improved to become excellent graduates, including physics bachelor candidates. Many physics bachelor candidates lack problem-solving skills. This problem is the basis for developing innovative learning models based online that, by design, can improve the problem-solving skills of physics bachelor candidates in the COVID-19 pandemic. This research aims to analyze the effectiveness ORNE learning model in improving the problem-solving skills of physics bachelor candidates as an alternative to online learning in the COVID-19 pandemic. The research design used a true-experiment with a non-equivalent control group design with 58 physics bachelor candidates. Data collected using the problem-solving skills test and then analyzed using the Paired Sample Test, Effect Size, N-gain, and Independent Sample Test. The results showed that the ORNE learning model proved effective in improving physics bachelor candidates' problem-solving skills. This research implies that the ORNE learning model can improve physics bachelor candidates' problem-solving skills as an alternative to online learning in the COVID-19 pandemic.

ESTIMASI KARAKTERISTIK SESAR YANG MENYEBABKAN GEMPA DI WILAYAH BANJARNEGARA MENGGUNAKAN SOFTWARE MTINV Muhammad Syahrul Dwi Handika; Madlazim Madlazim
Inovasi Fisika Indonesia Vol 9 No 3 (2020)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Abstrak Penelitian ini dilaksanakan dengan tujuan untuk menganalisis karakteristik sesar yang menyebabkan gempa dangkal yang terjadi di Banjarnegara dengan menggunakan software Moment Tensor Inversion (MTINV). Data yang digunakan pada penelitian ini adalah data sekunder berupa waveform tiga komponen pada tanggal 18 April 2018 yang diunduh dari WebDC3 BMKG. Untuk estimasi Centroid Moment Tensor (CMT) sebagai parameter gempa digunakan metode inversi seismik dan fungsi Green tiga komponen yang diaplikasikan ke dalam software Moment Tensor Inversion (MTINV). Hasil estimasi Centroid Moment Tensor (CMT) adalah momen seismik (????o), magnitudo momen (????w), latitude, longitude, kedalaman sumber, dan orientasi bidang sesar (nodal plane/NP) yang meliputi sudut strike, dip, dan rake. Selain itu, solusi Centroid Moment Tensor (CMT) juga memberikan informasi penyebab terjadinya gempa yang meliputi komponen Isotropik (ISO), Double Couple (DC), dan Compensated Vertical Linear Dipole (CLVD) dalam persen. Hasil perhitungan inversi seismik menunjukkan bahwa gempa terjadi akibat aktivitas tektonik yang dibuktikan dengan persentase Double Couple (DC) lebih dominan daripada Double Couple (DC) dengan Variation Reduction (VR) 57.6%. Berdasarkan Variation Reduction (VR), maka hasil yang diperoleh dalam penelitian ini dapat dikatakan valid karena telah memenuhi syarat. Dengan demikian dapat disimpulkan bahwa karakteristik sesar yang menyebabkan gempa dangkal yang terjadi di Banjarnegara 18 April 2018 bertipe naik (reverse). Kata Kunci: Centroid Moment Tensor (CMT), Banjarnegara, inversi seismik, dan Moment Tensor Inversion (MTINV) Abstract This research was carried out with the aim of analyzing the characteristics of the sesar that caused the shallow earthquake that occurred in Banjarnegara using Moment Tensor Inversion (MTINV) software. The data used in this study is secondary data in the form of a three-component waveform on April 18, 2018 downloaded from WebDC3 BMKG. For centroid moment tensor (CMT) estimation as earthquake parameters used seismic inversion method and green function three components applied into Moment Tensor Inversion (MTINV) software. Centroid Moment Tensor (CMT) estimation results are seismic moment (Mo), moment magnitude (Mw), latitude, longitude, source depth, and nodal plane (NP) orientation that includes strike, dip, and rake angles. In addition, Centroid Moment Tensor (CMT) solutions also provide information on the causes of earthquakes including Isotropic (ISO), Double Couple (DC), and Compensated Vertical Linear Dipole (CLVD) components in percent. The results of seismic inversion calculations show that earthquakes occur as a result of tectonic activity as evidenced by the percentage of Double Couple (DC) more dominant than Double Couple (DC) with Variation Reduction (VR) of 57.6%. Based on Variation Reduction (VR), the results obtained in this study can be said to be valid because they are qualified. Thus it can be concluded that the characteristics of the sesar that caused the shallow earthquake that occurred in Banjarnegara On April 18, 2018 are up (reverse). Keywords: Centroid Moment Tensor (CMT), Banjarnegara, seismic inversion, and Moment Tensor Inversion (MTINV)

ANALISIS SEISMISITAS DAN POTENSI BAHAYA BENCANA SEISMIK PULAU SUMATERA BERDASARKAN DATA GEMPA 1970-2020 MADLAZIM MADLAZIM; Nur Ika Dwi Lestari
Jurnal Inovasi Fisika Indonesia (IFI) Vol 11 No 2 (2022)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v11n02.p1-11

Abstrak Seismisitas Sumatera dan potensi bencana gempa tektonik dapat dipelajari melalui analisis parameter -value, -value, dan anomali -value. Nilai merefleksikan level seismisitas, nilai menunjukkan level stres batuan geologi bawah permukaan, dan anomali nilai bisa menjadi prekursor gempa besar. Ketiga parameter tersebut secara akurat diperoleh dengan memanfaatkan statistik frekuensi-magnitudo (FMD) gempa dari katalog USGS antara 1970-2020 dengan magnitudo antara 4,0 9,5 dan kedalaman mencapai 640 km. Kurva FMD menjadi basis penerapan hukum Gutenberg-Richter melalui pendekatan maximum likelihood. Perhitungan ketiga parameter dilakukan dengan membagi wilayah Sumatera menjadi Zona 1, Zona 2, dan Zona 3. Hasil-hasil perhitungan untuk Zona 1: = 6,02 dan = 0,76; Zona 2: = 6,50 dan = 0,84; dan Zona 3: = 6,86 dan = 0,88. Anomali nilai untuk ketiga zona seismik dinyatakan sebagai peta variasi spasio-temporal -value. Berdasarkan definisi -value dan -value, maka seismisitas Zona 3 (selatan Sumatera) paling tinggi dibandingkan dengan zona lain sedangkan struktur batuan bawah permukaan Zona 1 (utara Sumatera) memiliki stres paling tinggi yang relevan dengan peristiwa gempa besar yang sering terjadi. Analisis variasi spasio-temporal -value menemukan kesesuaian lokasi episenter gempa besar dengan daerah-daerah yang memiliki nilai yang rendah baik pada Zona 1, Zona 2 maupun Zona 3. Hal ini menunjukkan bahwa -drop dapat digunakan sebagai indikator gempa besar, sama seperti temuan terdahulu yang relevan dengan seismisitas Sumatera. Analisis histogram kedalaman sumber menunjukkan bahwa mayoritas gempa Sumatera adalah gempa dangkal dengan kedaaman rata-rata dalam rentang 30-40 km. Dengan demikian, seluruh wilayah Pulau Sumatera adalah rentan terhadap potensi bahaya bencana gempa tektonik. Kata Kunci: seismisitas Sumatera, -value, -value, anomali -value, hukum Gutenberg-Richter Abstract Seismicity in Sumatera and the potency for tectonic earthquakes can be examined using seismic parameters: -value, -value, and -value anomaly. Parameter -value reflects seismicity level, -value indicates the level of stress on subsurface structure, and -value anomaly is a precursor for a large event. The parameters were accurately calculated from USGS earthquake catalogue for frequency-magnitude distribution (FMD) in Sumatera between 1970-2020 with magnitudes 4.0 9.5 and the depths reaching 640 km beneath the surface. The FMD is a basis for the application of Gutenberg-Richter law through a maximum likelihood approach. Parameter calculation was performed by dividing Sumatera into Zone 1, Zone 2, and Zone 3. The results were for Zone 1: = 6.02 and = 0.76; Zone 2: = 6.50 and = 0.84; and Zone 3: = 6.86 and = 0.88. The anomaly was given as maps of spatio-temporal -value variations. Based on -value and -value definitions, seismicity in Zone 3 is the highest while subsurface structure in Zone 1 shows the highest stress, relevant to frequent large occurrences in this zone. Analysis of spatial and temporal -value anomalies found correlation between locations of large earthquake epicentres and regions of low-lying -value in all seismic zones. This suggests that b-drop is a good indicator for a large event, in good agreement with previous findings relevant to Sumatera seismicity. Analysis of earthquake source reveals that shallow sources are dominant with the average depth lies between 30-40 km. Thus, the whole island is vulnerable to seismic hazards. Keywords: Sumatera seismicity, -value, -value, -value anomaly, Gutenberg-Richter law

LEARNING DEVICE REQUIREMENT SCIENCE EDUCATION BY PROBLEM BASED LEARNING (PBL) TO INCREASE HIGH ORDER THINKING SKILLS JUNIOR HIGH SCHOOLS Nur Fuaidah; Madlazim Madlazim; Rudiana Agustini
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

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.

Pencitraan Rupture Gempa Bumi Sumatra 10 Januari 2012 Mw 7.2 Menggunakan Metode Multiple Signal Classification Back Projection (MUSICBP) MADLAZIM MADLAZIM; Daniar Kartika
Jurnal Inovasi Fisika Indonesia (IFI) Vol 11 No 3 (2022): Vol 11 No 3
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

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

Abstrak Gempa bumi Sumatra 10 Januari 2012 dengan kekuatan Mw 7.2 merupakan salah satu dari rangkaian gempa bumi Sumatra 2012 yang berlokasi di dekat antarmuka zona subduksi atau ~400 km dari barat laut Sumatra Utara di sisi laut Sunda Megathrust di dalam Cekungan Wharton, dimana terdapat zona patahan lama yang kembali aktif akibat dari aktivitas subduksi pada area tersebut sehingga sering kali terjadi gempa bumi dengan kekuatan yang besar seperti rangkaian gempa bumi Sumatra 2012, untuk itu dilakukan penelitian ini untuk mengetahui karakteristik rupture dari gempa bumi Sumatra 10 Januari 2012 Mw 7.2, dengan diketahuinya karakteristik rupture tersebut dapat digunakan untuk mengetahui gempa susulan yang mungkin terjadi setelah peristiwa gempa bumi tersebut sehingga dapat dimanfaatkan sebagai upaya mitigasi bencana gempa bumi. Berdasarkan penelitian yang dilakukan dengan menggunakan data sinyal yang terekam oleh stasiun seismik pada AU array dengan jumlah stasiun sebanyak 106 stasiun dan difilter menggunakan frekuensi tinggi sebesar 0.5-1.0 Hz pada tahap cross corelation diolah menggunakan metode Multiple Signal Clasification Back Projection (MUSICBP) didapatkan hasil karakteristik rupture berupa arah rambat rupture yang merambat secara unilateral ke arah barat laut dengan durasi rupture selama ~40s, dengan begitu dapat diketahui kecepatan rupture dari grafik regresi linear hubungan jarak dari radiator frekuensi tinggi ke episenter terhadap waktu selama 40s yaitu sebesar 1.9 km/s, kecepatan rupture tersebut termasuk ke dalam kategori lambat untuk sebuah gempa besar dengan kedalaman dangkal. Kata Kunci: Gempa bumi, Sumatra, rupture, back projection, MUSICBP Abstract The 10 January 2012 Sumatra earthquake with a magnitude of Mw 7.2 is one of a series of 2012 Sumatra earthquakes located near the interface of the subduction zone or ~400 km northwest of North Sumatra on the sea side of the Sunda Megathrust within the Wharton Basin, where there is an old fault zone. which is reactivated as a result of subduction activity in the area so that earthquakes with large strength often occur such as the 2012 Sumatra earthquake series, for this reason this study was conducted to determine the rupture characteristics of the Sumatran 10 January 2012 Mw 7.2 earthquake, by knowing the rupture characteristics This data can be used to find out aftershocks that may occur after the earthquake so that it can be used as an effort to mitigate earthquake disasters. Based on research conducted using signal data recorded by seismic stations on the AU array with a total of 106 stations and filtered using a high frequency of 0.5-1.0 Hz at the cross-correlation stage processed using the Multiple Signal Classification Back Projection (MUSICBP) method, the characteristic results obtained rupture in the form of a rupture propagation direction that propagates unilaterally to the northwest with a rupture duration of ~40s, so that the rupture speed can be seen from the linear regression graph of the relationship between the distance from the high-frequency radiator to the epicenter of the time for 40s, which is 1.9 km/s, speed The rupture is included in the slow category for a large earthquake with a shallow depth. Keywords: Earthquake, Sumatra, rupture, back projection, MUSICBP

DEVELOPMENT OF SCIENCE LEARNING MATERIAL WITH SOCIO-SCIENTIFIC ISSUES (SSI) ON CLIMATE CHANGE MATERIALS TO IMPROVE SCIENCE LITERACY OF JUNIOR HIGH SCHOOL STUDENTS Yaumi Yaumi; Madlazim madlazim; Titik Taufikurohmah
Jurnal Penelitian Pendidikan IPA Vol. 4 No. 2 (2019): Desember 2019
Publisher : Perkumpulan Pendidik IPA Indonesia (PPII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppipa.v4n2.p56-63

This research aims to produce IPA learning devices with the approach of Socio-Scientific Issues (SSI) on climate change materials to improve the science literacy of Junior high school students. The learning devices developed are syllabus, learning Implementation Plan, Student teaching materials, Student Worksheets, and Science literacy test. This type of research is development research with the model Dick and Carey. Test learning devices in the classroom using one group pre-Test post-Test design. The research instruments in this study are validation sheets, learning implementation observation sheets, activity observation sheets, test sheets, and student response polls. Data collection using validation methods, observations, tests, and polls. Data analysis techniques use quantitative descriptions. The results of the study show that learning devices are declared worthy of validity, practicality, and effectiveness. The validity aspect indicates that the learning device is very valid and reliable. The practicality aspect of the practice of learning has an average 3.66 with excellent criteria and an student activity is very active. The average achievement of science literacy from 32 students in class VII A when pre-test was at level 2 experienced an increase when post-test was at level 4. Based on N-Gain test the value of 0.50 is on medium criteria. Students ' response to the application of a Socio-Scientific Issues (SSI) approach to climate change material is very good. Learners give a positive response of 87.60%.

Literasi Data dalam Pembelajaran Fisika dan Penilaian Eko Sujarwanto; Madlazim Madlazim; Muslimin Ibrahim
Jurnal Ilmiah Pendidikan Fisika Vol 6, No 2 (2022)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jipf.v6i2.5442

Pembelajaran fisika sangat terkait dengan data. Literasi data membentuk kerangka pengetahuan melalui aktivitas identifikasi data, interpretasi data, pemaknaan data, dan mengomunikasikan makna dari data. Namun demikian, prinsip-prinsip mengajarkan literasi data dan penilaiannya belum terumuskan dengan jelas. Tujuan penelitian ini adalah mengkaji dan menunjukkan prinsip-prinsip pengajaran literasi data dan penilaiannya. Penelitian ini adalah penelitian kajian pustaka dengan mengkaji artikel dari jurnal dan prosiding serta tesis terkait prinsip pembelajaran literasi data dan penilaiannya. Hasil kajian menunjukkan bahwa prinsip pengajaran dalam literasi data adalah proses pembelajaran, media dan bahan ajar, dan kemampuan peserta didik. Sementara, penilaian literasi data perlu dikaji berdasarkan aspek pengenalan data, pengumpulan dan pencatatan data, analisis data dan interpretasi, mengomunikasikan data, dan penggunaan data. Berdasarkan aspek-aspek penilaian literasi data, kemampuan literasi data dibagi menjadi literasi data tingkat dasar, literasi data tingkat menengah, dan literasi data tingkat atas Physics learning is closely related to data. Data literacy forms the framework of scientific knowledge through data identification activities, data interpretation, the meaning of data, and communication of data meaning results. However, the principles of teaching data literacy and its assessment are still not clear enough. This research aims to reveal the principles of teaching data literacy and its assessment. This research is a literature review by reviewing articles from journals, proceedings, and theses related to the principles of data literacy learning and its assessment. The results suggest that the principles in teaching data literacy include three key aspects: learning process, media and learning materials, and student competence. Meanwhile, the assessment of data literacy needs to be reviewed from aspects of data recognition, data collection and recording, data analysis and interpretation, communication data, and data use. These aspects are divided into basic data literacy, intermediate data literacy, and upper data literacy.

Pelatihan Pembuatan Modul Proyek Pembelajaran STEAM (Science, Technology, Engineering, Art, and Mathematics) Terintegrasi Mitigasi Bencana Alam dalam Kurikulum Merdeka Belajar Mukhayyarotin Niswati Rodliyatul Jauhariyah; Madlazim Madlazim; Eko Hariyono; Nurita Apridiana Lestari; Ladika Zuhrotul Wardi; Lugas Haryo Pradigdo; Irsyad Yusuf Santoso; Faradila Aulia' Alifteria; Mahmud Mahmud
Bubungan Tinggi: Jurnal Pengabdian Masyarakat Vol 5, No 2 (2023)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/btjpm.v5i2.6939

Tujuan penulisan artikel Pengabdian kepada Masyarakat (PkM) ini adalah untuk menganalisis respons peserta pelatihan pembuatan modul proyek pembelajaran STEAM terintegrasi mitigasi bencana alam dalam Kurikulum Merdeka Belajar. Kegiatan dilaksanakan mulai tanggal 7 Juli 2022 hingga 26 September 2022. Metode yang digunakan dalam kegiatan PkM ini meliputi kegiatan pelatihan dan pendampingan dalam pembuatan modul proyek penguatan profil pelajar Pancasila melalui pembelajaran STEAM terintegrasi mitigasi bencana alam dalam implementasi Kurikulum Merdeka Belajar. Peserta pelatihan merupakan guru-guru di SMP dengan latar belakang berbagai bidang studi. Peserta terdiri dari 15 orang guru dan 1 staff tata usaha. Pelatihan diawali dengan materi pentingnya integrasi mitigasi bencana alam dalam pembelajaran, STEAM learning, overview Kurikulum Merdeka Belajar khususnya dalam penguatan profil pelajar Pancasila, serta inspirasi modul proyek berbantuan alat peraga terrarium biekosistem untuk topik bencana iklim. Setelah dibentuk kelompok, pembimbingan dan pendampingan dilakukan melalui WhatsApp Group dan laporan progress kelompok dilaksanakan secara daring melalui aplikasi Zoom meeting. Berdasarkan hasil angket, peserta pelatihan memberikan respons positif terhadap kegiatan pelatihan dan pendampingan pembelajaran STEAM terintegrasi mitigasi bencana alam dalam Kurikulum Merdeka. Peserta merasa mendapatkan manfaat dari pelatihan yang diberikan, mendapatkan gambaran tentang implementasi Kurikulum Merdeka, mendapatkan gambaran tentang proyek penguatan profil pelajar Pancasila, juga merespons positif terhadap komunikasi penyampaian materi oleh narasumber serta pelatihan yang dilaksanakan. Pendampingan peserta menghasilkan beberapa tema modul proyek, yakni: biopori, rain water harvesting, mitigasi bencana gunung meletus, dan kearifan lokal desain rumah di daerah rawan longsor.This community service article aims to analyze the responses of the training participants in the creation of STEAM learning project modules integrated with natural disaster mitigation in the independent learning curriculum. The activity was carried out from 7 July 2022 to 26 September 2022. The method used in this community service activity included training and mentoring in making project modules to strengthen the Pancasila student profile through STEAM learning integrated with natural disaster mitigation in implementing the independent learning curriculum. The training participants are teachers in junior high schools with backgrounds in various fields of study. Participants consisted of 15 teachers and one administrative staff. The training begins with material on the importance of integrating natural disaster mitigation into learning, STEAM learning, an overview of the independent learning curriculum, especially in strengthening the Pancasila student profile, as well as inspiration for project modules assisted by the bi-ecosystem terrarium teaching aids for the topic of climate disasters. After the group is formed, guidance and assistance are carried out through the WhatsApp Group, and group progress reports are carried out online through the Zoom meeting application. Based on the questionnaire results, the training participants positively responded to the integrated STEAM training and learning assistance activities on natural disaster mitigation in the independent curriculum. Participants feel that they have benefited from the training provided, got an overview of the implementation of the independent curriculum, got an overview of the project to strengthen the Pancasila student profile, and responded positively to the communication of material delivery by resource persons and the training carried out. The assistance of the participants resulted in several project module themes, namely: bio pore, rainwater harvesting, mitigation of volcanic eruptions, and local wisdom in designing houses in landslide-prone areas.

AKURASI PERBANDINGAN SOLUSI CENTROID MOMENT TENSOR (CMT) GEMPA BUMI SECARA REAL-TIME DAN OTOMATIS DI WILAYAH SUMATRA MENGGUNAKAN METODE GISOLA PADA SOFTWARE JOKOTINGKIR Elvira Silvia Tsani; Madlazim Madlazim; Muhammad Nurul Fahmi
Inovasi Fisika Indonesia Vol 13 No 1 (2024): IN PRESS Vol 13 No 1
Publisher : Jurusan 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 Rahma Nurhaliza; Madlazim Madlazim
Inovasi Fisika Indonesia Vol 13 No 1 (2024): IN PRESS Vol 13 No 1
Publisher : Jurusan 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

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