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Journal : Journal of Physics and Its Applications

PGA Estimation of 346 Points in West Sumatra based on Earthquakes Scenario in West Pasaman with Si and Midorikawa Formula Ramadhan, Wahyu; Syafriani, Syafriani; Fauzi, Ahmad; Dwiridal, Letmi
Journal of Physics and Its Applications Vol 6, No 2 (2024): May 2024
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v6i2.20795

Abstract

There was a destructive earthquake on February 25, 2022, at 08:39:29 WIB with a magnitude of 6,1 Mw that struck western Sumatra with an epicenter on land, and was located on a blind fault. The impact of the earthquake was felt quite widely in all Regencies/Cities in West Sumatra with an intensity of IV – VIII MMI. The earthquake caused damage, an estimated 6627 houses, 70 mosques, 41 offices, 208 schools, 25 medical infrastructure and 5 bridges. Therefore, it is necessary to conduct research in the province of West Sumatra on PGA using the Si and Midorikawa method and intensity with Murphy O'Brein's empirical formulation as an effort to mitigate earthquake disasters. This study aims to determine PGA as the level of earthquake activity and intensity as a measure of the damage caused by earthquakes and to analyze their distribution maps. The data used is earthquake data for the period 1936-2022 with a magnitude ≥ 5 Mw and a depth of ≤ 70 km sourced from the catalog of the National Earthquakes Information Center U.S Geological Survey (NEIC/USGS). The results of data processing produce PGA values in West Sumatra ranging from 0.4083 – 782.9839 gal with an intensity (MMI) ranging from I – IX MMI. Map of distribution of PGA values and the highest intensity is in West Pasaman Regency and the lowest value is in Mentawai Islands Regency. The West Pasaman Regency area and its surroundings should meet the requirements for earthquake-resistant buildings, because they have a fairly high PGA value.
Co-Authors Adzura, Nadilla Afiah Afiah Afrinis, Nur Agustina, Mia Dwi Alini, Alini Althaf, Muhammad Mahdy Alwa, MaqhviraHusna Amelia Wulandari Ananda, Lusi Septia Andi Irfan, Andi Anggraini Dhilon, Dhini Angraini, Dela Nofri Aprilla, Nia Ari Setiawan Arifianto, Nasruhan Astuti - Astuti, Haryati Astuti, Retnaning Ayu, Febri Az Zahra, Salwa Azilah, Fatimah Nur Azmi, Zul Budiman, Khoirul Cahyani, Yuyun Febri Cuyno Mellen, Renie Damanik, Haryana Darma, Wiga Aulia Darwis, Nurizah Binti Mohamed Daya, Ellen Kurniawati Defita, Ermi Dessyka Febria, Dessyka Deswari, Dini Eka Saputri, Eka Eka Setiawati Elizha, Zellvia Erlinawati Erlinawati, Erlinawati Fadhilaturrahmi Fadhilaturrahmi Faizah, Ni’ma Tri Fauzi Ahmad Muda Fauzi, Muhammad Aulia Fayzal, Muhammad Febriwanti, Mutiara Kusuma Felayati, Felayati Fitri Aulia Fitri S, Rahmi Pramulia Florentina Simalango, Nora Gunarmi Gunarmi, Gunarmi Hamdi , Hamdi Hamdi Hamdi Hamidi , M.Nizar Syarif HAMIDI, M. NIZAR SYARIF Handayani, Riska Harahap, Dhini Haryati Hardianti, Evi Harman Amir Husna, Azmi Asmaul Iis Siti Jahro Irinericy , Rani Isnaeni, Lira Mufti Azzahri Issabella, Chentia Misse khofi, Mohammad Bilutfikal Kusuma, Novy Oktaviandri Kusumawati, Nila Lasepa, Wanda Laxmi, Laxmi Leatari, Rizki Rahmawati Letmi Dwiridal Linda Susanti Linda Widyaningsih Lingga, Leny Julia lsmalinda, lsmalinda Mardhatillah, Dela Mesi, Mesi Miftahurrahmi, Miftahurrahmi Molly Wahyuni, Molly Mubasysyir Hasanbasri Muhammad Nizar Muhammad Nurman Nabilla, Agma Navelia, Zesika Intan Noorhayati, Ariyana Nur Azizah Nur Faizah, Ida Oktaviani, Yoneta Panjaitan, Nola Sari Parasandy , Ardila Parmin, Joria Percindira, Ella Dwi Prasetya, Danny Chandra Puji Hastuti Purnamasari, Yulia Puteri, Ade Dita Putri Andriani Putri, Minazri Eka Putri, Nadya Annisa Putri, Yura Chaniago Ramadhan, Syahwira Ramli Ramli Rejeki, Yunaji Sri Rizki Rahmawati Lestari Rizqi, Eka Roshifita Rusdial Marta S, Ayu Purnamasari Saibatul Aslamiah, Saibatul Sari, Rika Rosvita Septiani, Suci Setiawan, Dicko Silitonga, Yese Angga Marito Sinaga, Steven Siti Aisyah Siti Maimunah Siti Nurhayati Siwi Padmawati, Retna Sofiana Sofiana, Sofiana Sri Hardianti Sri Widiyati, Sri Sumangkut, Aprilia Meymey Suparmin Suparmin Syamsul Bachry SYARIFA SYARIFA, SYARIFA Syarifah Aini Syarifah, Zulfa Lailatus Syukrianti Syahda Taruna, Jhon Utari, Yola Vera Diane Tombokan Viora, Dwi Wahyu Ramadhan WIJOYO, HADION Williani, Shelly Yanri Wijayanti Subronto Yendri Sudiar, Nofi Yuliska, Rumi Yusrila, Yoga Z.R, Zurahmi Zulhendra Zulhendra Zulhendra, Harman Amir