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All Journal Teknosains: Media Informasi Sains dan Teknologi Jurnal Fisika Unand JITEK (Jurnal Ilmiah Teknosains) JPSE (Journal of Physical Science and Engineering) Jurnal Geocelebes Jurnal Penelitian Pendidikan IPA (JPPIPA) Neutrino Indonesian Physical Review Jurnal Fisika dan Terapannya Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Ilmiah Wahana Pendidikan KUANTUM: Jurnal Pembelajaran dan Sains Fisika Patria Artha Journal of Community Journal Of Khairun Community Services Journal of Science and Science Education (JoSSEd) Jurnal Edu Research Jurnal Pijar MIPA Newton-Maxwell Journal of Physics Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Geosains Kutai Basin Jurnal Pengabdian Rekayasa Sistem KUANTUM Faraday: Journal of Fundamental Physics, Research, and Applied Science Jurnal Pengabdian Indonesia BULETIN FISIKA Jurnal Pengabdian Masyarakat Indonesia
Meidji, Icha Untari
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Peningkatan Kesiapsiagaan Bencana Melalui Teknologi AR di Sekolah Dasar Tilongkabila I Made Hermanto; Huzaima Mas’ud; Icha Untari Meidji
JURNAL PENGABDIAN MASYARAKAT INDONESIA Vol. 4 No. 3 (2025): Oktober : Jurnal Pengabdian Masyarakat Indonesia (JPMI)
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jpmi.v4i3.5995

Abstract

This community service program aims to enhance disaster preparedness among elementary school students in Tilongkabila District, Gorontalo, an area prone to various natural disasters such as earthquakes, tsunamis, and liquefaction. The AR application developed allows students to understand the phenomena of natural disasters in a visual and interactive way, with three-dimensional visualizations and mitigation steps to be taken. An initial socialization on the disaster application based on AR was conducted, involving over 80% of the teachers and 40 students from elementary schools in Tilongkabila. The activity aimed to increase their understanding and skills in facing disasters, as well as to use the AR application effectively. This socialization also introduced how to use the application in learning, providing participants with direct experience interacting with the developed technology. Findings from the implementation indicate a substantial improvement in teachers’ understanding of the use of the AR-based disaster mitigation application, with a normalized gain (g) of 0.96, classified as very high. Additional results also show an increase in students’ knowledge related to disaster literacy. The program has cultivated a stronger culture of disaster preparedness within schools and surrounding communities.
Seismic Hazard Assessment in Gorontalo: Subduction Zone and Earthquake Analysis Icha Untari Meidji; Dewa Gede Eka Setiawan; Irsan; Kartika; Harsano Jayadi
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12956

Abstract

The Gorontalo region is one of the regions on the island of Sulawesi that is quite significant in terms of tectonic activity due to earthquakes. This is because Gorontalo is located in a tectonic environment, with a subduction zone in the Sulawesi Trench north and the Balantak Thrust and Batui Thrust south of the Gorontalo Fault. To further understand Gorontalo's seismic activity, we conducted a seismotectonic analysis in the form of identifying the number of earthquakes from 1994 to 2025, interpreting the results of the focal mechanism distribution by classifying them in the Kaverina diagram, and analyzing the results of earthquake hypocentre relocation from 2015 to 2022. The study results show that 2.317 earthquake events over 30 years spread across all areas of Gorontalo, categorised as shallow, medium, and deep earthquakes. The Gorontalo area is dominated by reverse faulting focus mechanisms, which are commonly found at shallow to intermediate depths. This is interpreted as being due to the presence of a subduction zone. A different situation occurs at deep depths, where the focal mechanism is normal faulting, indicating the presence of extensional forces due to the rollback slab process. The distribution of earthquake mechanisms also shows that a combination of strike-slip and reverse mechanisms occurs around active fault zones. In contrast, strike-slip mechanisms with standard mechanisms are more dominant in extensional zones.
Analysis of the Hydrodynamic Characteristics of Limboto Lake Waters Based on Momentum Fluxes Khan, Mikail Gabriel Khan; Yunginger, Raghel Yunginger; Setiawan, Dewa Gede Eka; Jahja, Mohamad; Meidji, Icha Untari; Ahmadi, Haerul; Kusmayancu, Cucu; Nalle, Merpati Teodoris
BULETIN FISIKA Vol. 27 No. 1 (2026): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2026.v27.i01.p02

Abstract

The waters of Lake Limboto show a decline in water quality, characterized by a decrease in clarity. Environmental factors, such as wind speed and direction, play a significant role in influencing the dynamics and quality of lake waters. To understand the influence of wind on water conditions, a comprehensive hydrodynamic study is required. This study focuses on analyzing the hydrodynamic characteristics of Lake Limboto waters based on momentum flux and its implications for lake water conditions. Wind speed and direction measurements were conducted on seven ducks in Lake Limboto waters during the period of November 1-3, 2024. Data were collected in the morning, afternoon, and evening. The lake's hydrodynamic characteristics were determined using formulas from the measured data. Hydrodynamic characteristics were interpolated using IDW cross validation leave one out and optimized with rank and neighboring point parameters. Wind direction was interpolated using IDW and converted into a vector field using Vector Field Layer Manager. It was found that the momentum flux by wind in Lake Limboto waters has a value range of 0-0.05 N/m2, and cross validation produced an RMSE of 0.003-0.01 N/m2. The interaction of momentum flux from wind and river flow causes sediment to be deposited in the coastal area of ​​Lake Limboto.
Seismicity Analysis of Earthquake in Bengkulu Using Gutenberg-Richter and Omori laws Tobamba, Fiska; Meidji, Icha Untari; Jayadi, Harsano
Faraday: Journal of Fundamental Physics, Research, and Applied Science Vol. 2 No. 1 (2026): Faraday: Journal of Fundamental Physics, Research, and Applied Science
Publisher : Universitas Pembangunan Nasional "Veteran" Jawa Timur

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

Abstract

Bengkulu Province is one of the regions in Indonesia with high seismic aktivity because it lies within the Sumatra tectonic plate zone and is crossed by the Sumatra Fault system. This tectonic setting makes Bengkulu highly vulnerable to Earthquake. This study analyzes the seismic characteristics of Bengkulu Using the Gutenberg-Richter law and examines the aftershock pattern following the major earthquake of june 4, 2000, based on the Omori-Utsu law. The data were obtained from the USGS earthquake catalog, consisting of earthquake records from 2015-2025 and afthershock data for 30 days after the mainshock. The Gutenberg-Richter Analysis evaluates the relationship between log10N and moment magnitude (Mw) to determine the a and b values. Meanwhile, Omori-Utsu Analysis examines the relationship between log10 n(t) and log10 (t+c) to obtain the parameters p and k. The result show that Bengkulu's seismicity is dominated by small to moderate earthquakes with relatively low b-values, indicating high tectonic stress conditions. The aftershock Analysis produced a p-value of 1.4822 with an R² value of 0.7767, showing rapid aftershock decay consistent with the Omori-Utsu law. These findings confirm Bengkulu has a high seismic Hazard level, emphasizing the need for continuous mitigation and preparedness efforts.
Co-Authors Abd Wahidin Nuayi Abdul Mukaddas Abdul Mukaddas Abdullah Ahmad Zainuri Ahmadi, Haerul Akuba, Kisman Akuba, Kisman R Andi Indra Wulan Sari Ramadani Aris, Ayub Pratama Asri Arbie Ayusari Wahyuni Ayusari Wahyuni Basyri Yadi Tang Bergita Gela M Saka Botjing, Muslimin U Dewa Gede Eka Setiawan Dwa Desa Warnana Efendi, Hasan Arif Firman Firman Gafur, Nurfitri Abdul Harsano Jayadi Hidayat, Irna Huzaima Mas’ud I Made Hermanto Idris, Rani Ika Daruwati, Ika Imran, Syahdan Ali Indriati Martha Patuti Irianto Uno Irsan Irsan Rahman Irsan Rahman, Irsan Jahja, Mohamad Jahja, Mohamada Jatnika, Jajat Kartika Khan, Mikail Gabriel Khan Kurniasari, Septiana Kusmayancu, Cucu Lapananda, Nuraliva F.P Latief, Muh. Fachrul Mamonto, Yusril Mahendra Masruroh Masruroh Meilan Demulawa Moch Rio Pambudi Moh Dahlan Th Musa Mohamad, Wahyu Mu’zizat Muh. Abduh Muh. Fachrul Latief Muhammad Fawzy Ismullah Massinai Muhammad Yunus Muhammad Yunus Mursalin . Nalle, Merpati Teodoris Ninasafitri, Ninasafitri Nurhayati Paputungan, Devi Triana Rachman, Gazali Ramdhan, Mohamad Rifai, Rusni R Samatowa, Lukman Sismanto Sismanto Supu, Idawati Tang, Basyri Yadi Tang, Bunga Tobamba, Fiska Widi Atmoko Widi Atmoko Widi Atmoko Windi Lestari Yudoyono, Susilo Yunginger, Raghel Yunginger Yusniati H. Muh. Yusuf Yutdam Mudin