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All Journal Indonesian Journal of Geography Natural Science: Journal of Science and Technology Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Teknosains IJOG : Indonesian Journal on Geoscience JGE (Jurnal Geofisika Eksplorasi) JFA (Jurnal Fisika dan Aplikasinya) Scientific Journal of Informatics Science and Technology Indonesia Jurnal Penelitian Pendidikan IPA (JPPIPA) INDONESIAN JOURNAL OF APPLIED PHYSICS Jurnal Pendidikan Fisika dan Keilmuan (JPFK) KOMPUTIKA - Jurnal Sistem Komputer Jurnal Ilmu Fisika JURNAL METEOROLOGI DAN GEOFISIKA Jurnal Fisika Indonesia Journal of Applied Geology Journal of Engineering and Technological Sciences
Suryanto, Wiwit
Department Of Physics, Universitas Gajah Mada, Yogyakarta, 55281, Indonesia.
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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PEMODELAN TSUNAMI BERDASARKAN AMPLITUDO MAKSIMUM HISTORIS GEMPABUMI DI PESISIR JAILOLO SELATAN Achmad, Rahim; Taib, Suryani; Ningrum, Rohima Wahyu; Suryanto, Wiwit; Aswan, Marwis; Salam, Ramdani; Amelia, Risky Nuri; Hesti, Hesti; Wahidin, Nurhalis
JGE (Jurnal Geofisika Eksplorasi) Vol. 9 No. 3 (2023)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v9i3.338

Abstract

Pangkalan data paleo-tsunami Indonesia mencatat tanggal 28 Juni 1859 terjadi gempabumi kuat di Laut Maluku dengan skala intesitas (MMI) IX dan menyebabkan tsunami di Teluk Sidangoli dengan ketinggian 10 meter. Laut Maluku memiliki pengaruh yang signifikan terhadap potensi terjadinya bencana tsunami di sekitar wilayah Halmahera termasuk Jailolo Selatan. Melihat adanya potensi bencana tsunami yang besar di wilayah Jailolo Selatan, maka perlu dilakukan strategi perencanaan mitigasi bencana tsunami yakni dengan pemodelan bahaya tsunami. Pemodelan bahaya tsunami dilakukan untuk mengetahui nilai amplitudo maksimum (Run-up) gelombang tsunami dengan menggunakan perhitungan numerik dari sofware Cornell Multi-Grid Coupled Tsunami Model (COMCOT) versi 1.7, nilai jarak maksimum yang dapat ditembus oleh air pasang ke daratan pada pantai yang datar (inundasi), dan nilai sudut kemiringan lereng (slope) dari pengukuran fotogrametri udara Unmanned Aerial Vehicle (UAV). Hasil Pemetaaan bahaya tsunami menghasilkan nilai amplitudo maksimum (Run-up) setinggi 4 meter dan wilayah yang terdampak akibat gelombang tsunami berjarak (inundasi) sekitar 310 meter dari garis pantai. Nilai rata-rata sudut kemiringan lereng (slope) di pesisir Jailolo Selatan adalah 22,90 dan termasuk lereng curam. Dan slope tipe curam cenderung menyebabkan peningkatan tinggi gelombang saat tsunami mendekati pantai, sehingga gelombang dapat menjadi lebih tinggi.
Probabilistic Earthquake Hazard Assessment in Indonesia Using Poisson Model and Spatial Grid Analysis Hartati; Effendie, Adhitya Ronnie; Susyanto, Nanang; Suryanto, Wiwit
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.207-216

Abstract

Indonesia, located at the convergence of three major tectonic plates in the Pacific Ring of Fire (ROF), is highly susceptible to earthquakes. This study analyzes earthquake hazard in Indonesia using a statistical approach based on the Poisson distribution combined with spatial mapping through a 0.5o x 0.5o grid. Earthquake  data from the USGS catalog (1925–2025), including time, location, depth, and magnitude, were analyzed. Annual earthquake frequencies were calculated for each grid cell with magnitude ≥ 5.0, and the probability of at least one event occurring within 10, 25, and 50 years was estimated using the Poisson probability function. Results were visualized as spatial probability risk maps for 10-, 25-, and 50-year horizons, enabling the identification of earthquake-prone areas and classification of risk levels. The findings reveal that subduction zones, particularly along the Sunda Arc, exhibit probabilities exceeding 90% for M≥ 5 events within the next 50 years, highlighting their significance for disaster preparedness. These results demonstrate that a Poisson-based statistical and spatial approach is effective for probabilistic earthquake hazard mapping and provides direct support for disaster risk reduction and spatial planning in Indonesia.
The origin and evolution of the Menui Basin, part of the Matarombeo Terrain, Southeastern Arm of Sulawesi, Based on Geological and Geophysical Data Samodra, Saptono Budi; Surjono, Sugeng Sapto; Amijaya, Donatus Hendra; Suryanto, Wiwit
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.113432

Abstract

Menui Sub-basin is a part of Matarombeo terrain, located in south-east arm of Sulawesi Island – Indonesia. Matarombeo terrain geologically is bounded by Matano Fault, Lawanopo Fault, and Tolo Trust. Different from western part of Matarombeo Terrain that consist of Mountain, Menui Sub-basin is located at eastern part of Matarombeo Terrain, covered by sea water of Tolo Bay. The aim of this research is to interpreted basin formation and evolution of Menui Sub-basin, based on geomorphological and geological observation, further than stratigraphic and structural analysis. Research method included IFSAR image interpretation, geological field observation, and laboratory analysis such as petrography, paleontology,  structural geology and sub surface analysis. Geologic and structural geology data were collected from surface mapping in land of Matarombeo, but sub-surface interpretation beneath Tolo bay were taken from gravity and seismic data. Stratigraphically, study area consist of Cretaceous – Oligocene ophiolite series which thrusted above Mesozoic sedimentary rocks from the continental crust origin. Unconformably above those two rock groups deposited molasse group on Miocene. The study area has been affected by three different tectonic stress phases.  Formation and evolution of Menui Sub-Basin is characterized by several distinct events. The events begin from its history as part of Australia (pre-rifting sequence), the detachment from Australia (syn-rifting sequence), movement to its present location (syn-drifting sequence) and during and after the collision with SE Sulawesi (syn-orogen and post-orogen sequences).Received: 2025-11-24 Revised:  2025-12-13 Accepted: 2025-12-31 Published: 2025-12-31
Analysis of Stress Ratio and Stress Regime in West Java Sirait, Anne M.; Palgunadi, Kadek Hendrawan; Simanjuntak, Andrean V. H.; Rahmania, Nadhira; Naufal, Izaaz; Dhiarofa, Muhammad Nanda Rizqi; Karimah, Akhlaqul; Al-Ghifari, Rafi Sadam; Ramadhani, Azhari; Hady, Farrastha Hady; Warnana, Dwa Desa; Suryanto, Wiwit
Indonesian Journal on Geoscience Vol. 13 No. 1 (2026)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.13.1.43-55

Abstract

This study actively investigates stress ratios, principal stress orientations, and stress regimes in the West Java Province, Indonesia, by simultaneously inverting both the stress tensor and fault orientations from 232 moment tensors. It identifies diverse stress regimes, including normal and reverse faulting in the subduction zone, as well as mixed reverse and strike-slip faults across the island. Stress ratios range from 0.08 to 0.97. Sedimentary basins in the northeast produce lower values, while tectonic forces near the southern subduction zones generate higher values. In the subduction zone, plate bending generates normal faulting, while compressional forces lead to reverse faulting. The fore-arc region exhibits a variety of regimes: normal, reverse, and strike-slip, indicating transitions in the dynamics of subduction. Across the island, a combination of reverse and strike-slip faulting suggests crustal compression, with Mount Anak Krakatau exhibiting evidence of normal faulting. The study uncovers a complex interplay of subduction processes, crustal deformation, and geological heterogeneities. It outlines stress regimes ranging from normal and reverse faulting in the subduction zone to mixed reverse and strike-slip faulting on the island. These findings offer crucial insights into the tectonic processes shaping West Java, and lay the groundwork for more informed seismic hazard assessments and risk mitigation strategies.
Analisa Receiver Function Teleseismic untuk Mendeteksi Moho pada Stasiun Bkb Data Meramex Amukti, Rian; Suryanto, Wiwit
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 3, No 02 (2013): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v3i02.1272

Abstract

It has been done a research to determine internal earth using receiver function teleseismic analysis method. This method have been done by using MERAMEX (MErapi Amphibious Experiment) data from broadband seismometer BKB. Event of teleseismic is chosen from Honshu Japan with radius 30o and magnitude 7.2. This research begun by analysing radial and vertical characteristic of teleseismic eventand using bandpass filter with range 0.003 Hz – 0.5 Hz. Then Iteractive Deconvolution is used to get velocity model. The result of this model shows crustal model that has 4 Km thick upper crust, a 26 Km thick lower crust and 10 Km thick Moho transition zone, with velocity increasing gradually.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Basit Achmad, Rahim Adhatus Solichah Ahmadiyah, Adhatus Solichah Adhitya Ronnie Effendie, Adhitya Ronnie Agung Harijoko Agus Subekti Agus Subekti Agus Suprianto Ahmad Fauzi Pohan Al-Ghifari, Rafi Sadam Amelia, Risky Nuri Amukti, Rian ARI SETIAWAN Ari Setiawan Ari Setiawan Ari Setiawan Aryono Adhi, Aryono Aswan, Marwis Ayu Putri Ningsih Ayu Putri Ningsih Azka Zakiyyatuddin Boko Nurdiyanto Dairoh Dairoh, Dairoh Daryono, Mudrik Rahmawan Dhiarofa, Muhammad Nanda Rizqi Donatus Hendra Amijaya Doni Prakasa Eka Putra Drajat Ngadmanto Dwa Desa Warnana Ellianawati, Ellianawati Estuning Tyas Wulan Mei Fauzi, Hendra Hady, Farrastha Hady Harmadi Harmadi Hartati Helmi Yusnaini Helmi Yusnaini Hendra Fauzi Herlan Darmawan Herlan Darmawan Hesti Hesti Hesti Hesti Hiroyuki Hashiguchi Hiroyuki Hashiguchi Imam Suyanto Irwan Meilano irwan meilano Irzaman, Irzaman Jaingot A. Parhusip Jaingot A. Parhusip, Jaingot A. Jamidun, Jamidun KARIMAH, AKHLAQUL Maria Evita Maria Evita Marzuki Marzuki Mitra Djamal Mitra Djamal Moh Yasin Mohammad Yasin Muh Sarkowi Muhammad Rusydi H. Mutya Vonnisa Naufal, Izaaz Nina Siti Aminah Nina Siti Aminah Nurul Priyantari P, Subagio P. Perdinan Palgunadi, Kadek Hendrawan Pupung Susilanto Putra, Heriansyah Rahmania, Nadhira Rais Ramadhani, Azhari Ramdani Salam Ravidho Ramadhan Ravidho Ramadhan Retna Apsari Rohima Wahyu Ningrum Rohima Wahyu Ningrum, Rohima Wahyu Ry, Rexha Verdhora Samodra, Saptono Budi SB, Kirbani Sensius Seno Sholihun, Sholihun Simanjuntak, Andrean V. H. Simanjuntak, Andrean Vesalius Hasiholan Sirait, Anne M. Sirait, Anne Meylani Magdalena Sismanto Sismanto Sri Widiyantoro Sugeng Sapto Surjono Suliyanti Pakpahan Supriyadi Supriyadi Supriyadi Supriyadi Susyanto, Nanang Syaifuddin, Firman Syarifatul Ulfah Taib, Suryani Toyoshi Shimomai Toyoshi Shimomai Triahandini, Agnis Very Kurnia Bakti, Very Kurnia Wahidin, Nurhalis Wahyu Srigutomo Wahyu Srigutomo Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi