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All Journal Indonesian Journal of Geospatial Indonesian Physical Review Al-Majaalis : Jurnal Dirasat Islamiyah Studies in Philosophy of Science and Education COMMUNITY : Jurnal Pengabdian Kepada Masyarakat Inovasi Fisika Indonesia (IFI) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram PESHUM Journal of Dedication in Community (JoDiC)
Fahmi, Muhammad Nurul
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Religion Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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PENCITRAAN RUPTURE GEMPABUMI BANGGAI SULAWESI TENGAH 12 APRIL 2019 MW 6.8 MENGGUNAKAN METODE MULTIPLE SIGNAL CLASSSIFICATION BACK-PROJECTION Rahma Dian Wulan Dari; Madlazim; Fahmi, Muhammad Nurul
Inovasi Fisika Indonesia Vol. 14 No. 3 (2025): Vol 14 No 3
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v14n3.p412-420

Abstract

Abstrak Sulawesi Tengah merupakan daerah dengan tingkat seismisitas yang tinggi. Gempa bumi berkekuatan besar sering terjadi baik di daratan atau di lautan. Pada tanggal 12 April 2019 telah terjadi gempa bumi berkekuatan Mw 6,8 mengguncang Banggai Sulawesi Tengah. Penelitian ini dilakukan dengan tujuan menganalisis karakteristik rupture gempa Banggai menggunakan metode Multiple Signal Classification Back Projection. Data yang digunakan dalam penelitian ini merupakan data sekunder yang didapatkan dari IRIS WILBER 3 berupa gelombang seismik dari stasiun array AU dengan jumlah 73 sinyal. Metode yang digunakan dalam penelitian ini dengan teknik pemrosesan array AU berformat .SAC dan data tersebut diolah menggunakan program MUSICBP. Hasil analisis citra rupture beresolusi tinggi mendeskripsikan rupture gempa merambat secara unilateral sepanjang ~40 km/s dari episenter, dengan kecepatan 1,6 km/s dan durasi sebesar 25 Sekon. Hasil dari pencitraan rupture menunjukkan gempa bumi yang terjadi di Banggai pada 12 April 2019 disebabkan oleh aktivitas sesar Peleng di Pulau Sulawesi Tengah dengan rupture merambat ke arah Timur Laut dengan mekanisme Strike-Slip. Hasil akurasi MUSICBP yang didapatkan untuk mengetahui karakteristik rupture cukup akurat, yaitu dengan memvalidasi melalui IRIS WILBER 3. Ada sedikit perbedaan arah dengan penelitian terdahulu, akan tetapi lokasi penyebab nya menuju sesar yang sama, yaitu sesar Peleng.   Abstract Central Sulawesi is a region with a high level of seismicity. Large-magnitude earthquakes frequently occur both on land and at sea. On April 12, 2019, an earthquake with a magnitude of Mw 6.8 struck Banggai, Central Sulawesi. This study aims to analyze the rupture characteristics of the Banggai earthquake using the Multiple Signal Classification Back Projection (MUSICBP) method. The data used in this study are secondary data obtained from IRIS WILBER 3, consisting of seismic waveforms recorded by the AU array station, totaling 73 signals. The method employed in this research involved processing the AU array data in .SAC format, which were analyzed using the MUSICBP program. The results of the high-resolution rupture imaging describe that the rupture propagated unilaterally along approximately 40 km from the epicenter, at a speed of 1.6 km/s, with a duration of about 25 seconds. The rupture imaging results indicate that the earthquake that occurred in Banggai on April 12, 2019, was caused by the activity of the Peleng Fault in Central Sulawesi, with the rupture propagating toward the northeast and exhibiting a strike-slip mechanism. The MUSICBP analysis result were obtained to understand the characteristics of the fracture, specifically through validation using IRIS Wilber 3. There were slight differences between the direction and previous studies, but the location of the cause was the same, Fault Peleng.
Systematic Literature Review: Strengthening Teacher Competence through Creative Project-Based STEAM Implementation in Physics Learning Suprapto, Nadi; Deta, Utama Alan; Fahmi, Muhammad Nurul; Dermawan, Dodik Arwin; Nurmalasari, Dewi; Hidaayatullaah, Hasan Nuurul; Monica, Elsa; Damarsha, Adrian Bagas; Citra, Nina Fajriyah
Studies in Philosophy of Science and Education Vol. 6 No. 3 (2025): November
Publisher : National Dong Hwa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46627/sipose.v6i3.717

Abstract

The STEAM (Science, Technology, Engineering, Arts, and Mathematics) approach is a new form of teaching that places students in real-world situations around them by following the concept of interdisciplinary teaching. STEAM is highly relevant in supporting students' 21st-century skills. As is well known, 21st-century skills encourage students' critical thinking, communication, collaboration, innovation, and creativity. In physics learning, it is not uncommon for students to have difficulty understanding the subject. Teachers, as learning facilitators, are expected to be able to integrate STEAM into physics education. Teachers must have the skills to develop learning tools. Through research using the SLR method, this study aims to investigate the importance of teachers' competencies in implementing project-based STEAM learning in physics education. Project-based learning emphasizes collaborative learning activities among heterogeneous groups of students. The analysis results show that the implementation of the STEAM approach in learning is still limited. Physics teachers are important agents in equipping students with the necessary physics knowledge and scientific investigation skills. Therefore, physics teachers need support in improving their understanding of STEAM. In learning activities involving project-based STEAM, it is known that it can increase students' creativity and innovation in problem solving.
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).
ANALYSIS OF SOIL DYNAMICS AND GROUND MOVEMENT VULNERABILITY USING THE HVSR METHOD BASED ON MICROTREMOR MEASUREMENTS IN THE SEMPU AREA, PASURUAN Ramadhan, Yuansyah Dhaniar; Situmeang, Adedio Daniel; Saputra, M. Rizky; Cholisatin, Safira Nur; Asyfiya, Divana Zumrotul; Safrian, Alif Haidar; Fahmi, Muhammad Nurul; Madlazim, Madlazim; Realita, Arie
Indonesian Physical Review Vol. 9 No. 1 (2026)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v9i1.561

Abstract

The Sempu Area, located in Cowek Village, Purwodadi Subdistrict, Pasuruan Regency, has a high potential for ground movement due to its lithological conditions, which consist of loose volcanic deposits and weathered sedimentary rocks, thereby increasing the risk of seismic wave amplification. This study aims to analyze the dynamics and soil vulnerability to ground movement phenomena using the Horizontal-to-Vertical Spectral Ratio (HVSR) method based on microtremor data. Data collection was conducted at 15 measurement points using a three-component seismograph, with a recording duration of 20 minutes per point. The data were analyzed using SeismoWin for signal filtering, Geopsy for extracting the fundamental frequency (f₀) and amplification values, and Surfer and ArcGIS for spatial visualization in the form of dominant frequency maps, amplification maps, and soil vulnerability index (Kg) distribution. The results showed that the dominant frequency values ranged from 2.75 to 5.92 Hz, with a maximum amplification value of 6.18. The most vulnerable zones were identified in the central part of the hamlet, specifically at points 10 and 14, which exhibited the highest Kg value of 14.12. These findings indicate the presence of significant local resonance zones arising from unconsolidated lithology, thereby increasing the risk of damage from seismic shaking. The implications of this study support land-use planning based on seismic microzonation and the development of more precise disaster mitigation strategies in areas prone to ground movement.
Keakuratan Centroid Moment Tensor (CMT) pada Software Joko Tingkir untuk 7 Gempa Bumi di Wilayah Kepulauan Nusa Tenggara Adinda Rahma Adzdza Riyatunnisa; Madlazim; Fahmi, Muhammad Nurul
Inovasi Fisika Indonesia Vol. 15 No. 2 (2026): Vol 15 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v15n2.p218-232

Abstract

Abstrak Wilayah Kepulauan Nusa Tenggara merupakan daerah rawan gempa akibat interaksi kompleks antara Lempeng Indo-Australia dan Eurasia. Penelitian ini bertujuan mengevaluasi keakuratan solusi Centroid Moment Tensor (CMT) yang dihasilkan oleh software Joko Tingkir, sebuah sistem komputasi berbasis algoritma Gisola untuk penentuan solusi CMT secara otomatis dan real-time. Analisis dilakukan terhadap tujuh gempa bermagnitudo ≥5 yang terjadi pada tahun 2018–2024. Hasil dari Joko Tingkir dibandingkan dengan data referensi Global CMT menggunakan metode Root Mean Square Error (RMSE) dan sudut Kagan. Nilai RMSE untuk semua parameter berada di bawah batas toleransi (maksimal 13,32°), sedangkan nilai rata-rata sudut Kagan sebesar 12,25°, menunjukkan tingkat kesesuaian geometri yang tinggi. Jenis patahan yang dominan adalah sesar naik, sesuai dengan kondisi geotektonik regional. Kesimpulannya, Joko Tingkir mampu memberikan solusi CMT yang akurat dan andal untuk keperluan seismologi regional dan mitigasi bencana di wilayah rawan gempa.   Abstract The Nusa Tenggara Islands are a seismically active region due to the complex interaction between the Indo-Australian and Eurasian plates. This study aims to evaluate the accuracy of Centroid Moment Tensor (CMT) solutions generated by Joko Tingkir, a computational system based on the Gisola algorithm that provides automated and real-time CMT solutions. The analysis focused on seven earthquake events with magnitudes ≥5 that occurred between 2018 and 2024. The results from Joko Tingkir were compared with reference data from Global CMT using the Root Mean Square Error (RMSE) method and Kagan angle analysis. The RMSE values for all parameters remained below the acceptable threshold (maximum 13.32°), while the average Kagan angle of 12.25° indicated a high degree of geometric consistency. The dominant fault type was reverse faulting, aligning with the regional geotectonic conditions. In conclusion, Joko Tingkir is capable of producing accurate and reliable CMT solutions for regional seismological applications and disaster mitigation efforts in earthquake-prone areas.
Co-Authors Abdul Rahman Ramadhan Adikuasa, M Biyadihie Adinda Rahma Adzdza Riyatunnisa Agung Budi Harto Anas Burhanuddin arianto, Fadia shifa Asandi, Ruhi Asyfiya, Divana Zumrotul Choirunnisa, Kayla Cholisatin, Safira Nur Citra, Nina Fajriyah Damarsha, Adrian Bagas Dewanti, Adek Putri Dewi Nurmalasari, Dewi Dewi, Karlita Diah Hari Kusumawati Dodik Arwin Dermawan Dzulkiflih, Dzulkiflih Elsa Monica, Elsa FAJAR SETIAWAN Habibulloh, Muhammad Hidaayatullaah, Hasan Nuurul Huda, Naufal Mumtas Ketut Wikantika Khansa Hanifa, Nabila Machabbah, Kharisma Madlazim Madlazim Madlazim Mita Anggaryani Mosse, Yogi Muhammad Yassir Nabila, Auliya Izka Nadi Suprapto Natasya, Adinda Nur Ni Made Aprillia Sekar Manggartika Nugrahani Primary Putri Nurdiana, Gika Sukma Oktaviani, Rachma Dwi Pramesti, Novia Putri, Rasamala I.W Putri, Safirda Adini Rahmatsyah Rahma Dian Wulan Dari Ramadhan, Yuansyah Dhaniar Realita, Arie Rozikin, Muchamad Khoirur Safrian, Alif Haidar Salsabila, Aisyah Salsabila, Nur Rizqika Ghina Saputra, M. Rizky Situmeang, Adedio Daniel Suaebah, Evi Sungkono Sungkono Sya'roni, Imam Tika, Ni Made Aprillia Sekar Manggar Tjipto Prastowo Tsani, Elvira Silvia Utama Alan Deta Wati, Jhulinda Nizar Yantidewi, Meta Zulfantri, Abdi