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Journal : Indonesian Physical Review

ZONASI SITE EFFECT DAN ANALISIS BAHAYA PENGUATAN GEMPA MENGGUNAKAN METODE DSHA UNTUK MENENTUKAN PGA DI KABUPATEN SUMBA BARAT DAYA Soulthan Salahudin Al Ayubi; Karyanto Karyanto; Nandi Haerudin; Syamsurijal Rasimeng; Rahmat C Wibowo
Indonesian Physical Review Vol. 3 No. 2 (2020)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1549.687 KB) | DOI: 10.29303/ipr.v3i2.44

Abstract

Southwest Sumba Regency is located in the Banda Arc area. Its position which is very close to the subduction area in the south of Indonesia caused a lot of tectonic activity and earthquake hazard. The arrangement of alluvium, coral, and thick deposits on the island of Sumba makes it prone to earthquake strengthening. Zoning of soil characters using site effects and DSHA method was carried out to determine the danger level of strengthening the Southwest Sumba Regency. Zoning of the site effect soil character uses microtremor data which is correlated with seismic hazard analysis to obtain the PGA values on bedrock and ground surface using the closest earthquake source. The area is dominated by Class 2 and 3 lands (f0 worth 1.333 - 5 Hz) according to the Kanai Classification (1983), with an amplification predominance of 3.8-8.3 times. This indicates that the research area is dominated by thick sediment deposits. The PGA value obtained from the DSHA method is known that Southwest Sumba Regency has a PGA soil of 0.075-0.19 g and a bedrock PGA of 0.067-0.085 g using earthquake record data in Sumba Subduction and Timor Subduction. With PGA estimation, it is known that the level of earthquake disaster vulnerability is high, located in the south of Southwest Sumba Regency which is suspected to be composed of thick sediments and close to the Sumba Subduction and Timor Subduction.Keywords: Site effect, predominant frequency, amplification, earthquake, DSHA, PGA
Co-Authors Achmad Subari Aisah Yuliantina Akroma Hidayatika Ambrosius Hernawan Wibisono Amelia Isti Ekarena Andrian Wilyan Djaja Annur Istikomah Aprillia Yulianata Arief Putih Prabowo Arif P Prabowo Arif P Prabowo Arsy Nurrochman Assegaf, Muhammad Alimuddin Hamzah Ayu Safira, Ayu Azis Riyanti Bagus Sapto Mulyanto Dani, Ilham Dewi Wijayanti Dewi Wijayanti Dewi, Soraya Tiana Egie Wijaksono Eko Rananda Elen Novia Limswipin Emir Dzakwan Kamal Zein F Alami Fadhil Muhammad Nizam Fahruddin Fahruddin Farrasha, Muthia Firda Amalia Gita Purna Rae Wanudya Gusti Aldy Haqqie Ramadhan Hesti Hesti Hidayat Hidayat Hilman Sabiq Ibrahim Ibrahim Ida Bagus Suananda Yogi Ida Bagus Suananda Yogi Ida Bagus Sunanda Yogi Idabagus S Yogi Iis Ratna Sari Ilham Dani Ilham Dani Istikomah, Annur Ivana Jayarani Ivana Jayarani Sitompul K Karyanto Karyanto, Karyanto La Ode Safiuddin La Ode Safiuddin Ledia Damayanti Lintang Prabowo Luthfi Rahmawati Maria Nova NafTalita Masdar Helmi Medi K Putri Mhd Azri Pangaribuan Muhammad Fikri Azhari Muhammad Nasri Muhammad Nurul Muhammad Rasyid Ridho Mustaid Yusuf Nandi Haerudin Nando Liven Konstanta Noor Muhammad Indragiri Nurlina Nurlina Ordas Dewanto PM Haidar Pratama, Tectona Putra Epriyan Rahmat C Wibowo Rahmawati, Luthfi Rahmi Mulyasari Ramadhan, Haqqie RC Wibowo Restu Wildanu Ahadi Ririn Yulianti Rudianto Rudianto Rustadi ., Rustadi Rustadi Rustadi S Suharno Sabrianto Aswad, Sabrianto Sakka Sakka Sari, Iis Ratna Sianturi, Rizky J. Soulthan Salahudin Al Ayubi Subarsyah Subarsyah Sudarningsih Sudarningsih Suharno Suharno Suharno Suharno Suharno Sultan Al Ghifari Supardi . Supardi Supardi Surbakti, Lucky Dolinta Syamsuddin Syamsuddin Syamsuddin, Erfan Syihab, Mufly Fadla Tiara Andika Fadila Tugiyono Tugiyono Ulfa Wahyuningsih Valentino Manurung, Andro Varenza Novita Yandi Wibowo, Rahmat Catur Widya Putri Syahranti Wijaksono, Egie Winda Styani Yuliawati Yandi, Varenza Novita Yeri, Nazhifah Ananda Yoga Kurniawan Yogi, Sunanda Zein, Emir Dzakwan Kamal