Earthquake Disaster Mitigation Based on Peak Ground Acceleration with Multi-Sensor System

2021 ◽  
Author(s):  
Casi Setianingsih ◽  
Muhammad Ary Murti ◽  
Alifi Adham Wicaksono ◽  
Randy Erfa Saputra ◽  
Dimas Budi Pangestu
Keyword(s):  
Peak Ground Acceleration ◽  
Disaster Mitigation ◽  
Sensor System ◽  
Ground Acceleration ◽  
Earthquake Disaster

scholarly journals Penentuan Nilai Percepatan Tanah Maksimum Terhadap Mitigasi Gempabumi Kabupaten Pidie Jaya, Provinsi Aceh

2020 ◽  
Vol 17 (1) ◽  
pp. 23-26
Author(s):  
Retno Agung ◽  
Alfian Indrajaya
Keyword(s):  
Peak Ground Acceleration ◽  
Disaster Mitigation ◽  
Geological Condition ◽  
Physiographic Unit ◽  
Ground Acceleration ◽  
Earthquake Disaster ◽  
Maximum Value ◽  
Geological Map ◽  
Banda Aceh ◽  
Earthquake Data

Penelitian ini dilakukan di daerah Kabupaten Pidie Jaya, yang secara geografis terletak pada koordinat 4˚54 ’15 .702 ’’ N - 5˚18 ’244 N dan 96˚1 ’13, 656 E - 96˚22 ’1.007 E. Fisiografi regional wilayah penelitian dimasukkan dalam peta geologi Banda Aceh, Lohk Seumawe, Takengon, dengan unit fisiografi Zona Kaki Bukit Barisan. Kondisi geologis daerah penelitian terdiri dari Batuan Pra-Tersier, Tersier, dan Kuarterner. Penelitian ini bertujuan untuk menghitung, menganalisis dan menentukan nilai Puncak Maksimal Percepatan Tanah, sehingga peta percepatan tanah dan peta zona mitigasi bencana gempa bumi dapat diperoleh untuk Kabupaten Pidie Jaya. Berdasarkan hasil pengolahan data gempa bumi di Kabupaten Pidie Jaya pada 7 Desember 2016 penulis menemukan nilai maksimum percepatan tanah puncak dengan menggunakan metode Boore (1997) adalah: 225,7 - 85,8 gal. Sementara itu dengan menggunakan metode Fukusima dan Tanaka (1992), hasilnya adalah: 115,0-115,0 gal. Dengan menggabungkan faktor-faktor litologi data sebagai data pendukung lainnya untuk pembobotan, penulis dapat menghasilkan Peta Zona Mitigasi Bencana Gempa Bumi, dari kategori rendah hingga kategori tinggi untuk kabupaten ini. This research was carried out in the Pidie Jaya Regency area, which geographycally situated at coordinates 4˚54 ‘15.702 ‘’ N - 5˚18 ‘2,244 N and 96˚1 ‘13,656 E - 96˚22 ‘1,007 E. Regional physiography of the study area is included in the geological map of Banda Aceh, Lohk Seumawe, Takengon, with the physiographic unit of the Bukit Barisan Foot Zone. The geological condition of the study area is composed of Pre-Tertiary, Tertiary and Quarternary Rocks. This study aims to calculate, analyze and determine the value of Maximum Peak of Ground  Acceleration, so that ground acceleration maps and earthquake disaster mitigation zone maps can be obtained for Pidie Jaya District. Based on the results of the earthquake data processing in Pidie Jaya Regency on December 7, 2016 the author find the maximum value of  peak ground  acceleration using the Boore method (1997) is: 225,7 - 85,8 gal. Meanwhile by using Fukusima and Tanaka method (1992), the result is: 115,0-115,0 gal. By combining those data lithological factors as other supporting data for weighting, the author could produces an Earthquake Disaster Mitigation Zone Map, from low category untill high category for this district.

scholarly journals ANALISIS RISIKO BENCANA GEMPABUMI DI WILAYAH NUSA TENGGARA BARAT

2017 ◽  
Vol 18 (1) ◽  
pp. 38
Author(s):  
Melki Adi Kurniawan ◽  
Komang Ngurah Suarbawa ◽  
Ardhianto Septiadhi
Keyword(s):  
Analytical Hierarchy Process ◽  
Peak Ground Acceleration ◽  
Risk Index ◽  
Disaster Risk ◽  
Risk Identification ◽  
Ground Acceleration ◽  
Earthquake Disaster ◽  
Risk Levels ◽  
Hierarchy Process ◽  
Index Calculation

An investigation of risk identification earthquake disaster in Nusa Tenggara Barat by three factors: the danger factor of earthquakes is Peak Ground Acceleration(PGA), vulnerability factor is population density by district, as well as the capasity factors are HDI (Human Development Index) by district in the province of West Nusa Tenggara has be done. PGA value calculation was performed using the attenuation function Fukushima and Tanaka with earthquake parameter data from 1970 - 2014 with the criteria of magnitude ? 4.5mB, depth ? 60 km and the epicenter in the range of 7.5o - 12o and 115o-120o BT and  for disaster risk index calculation earthquake using AHP (Analytical Hierarchy Process). From the calculation of the obtained regions with earthquake disaster risk levels are highest are southern Dompu, Mataram, Bima, northern Bima Regency while the lowest West Sumbawa regency and southern Sumbawa regency.

scholarly journals Pemodelan Spasial Peak Ground Acceleration dan Prediksi Luas Genangan Tsunami di Kota Bengkulu

2020 ◽  
Vol 34 (2) ◽  
pp. 166
Author(s):  
Dewi Susiloningtyas ◽  
Della Ayu Lestari ◽  
Supriatna Supriatna
Keyword(s):  
Wave Height ◽  
Peak Ground Acceleration ◽  
Tsunami Wave ◽  
Disaster Mitigation ◽  
Eurasian Plate ◽  
The West ◽  
Ground Acceleration ◽  
Tsunami Inundation ◽  
Affected Area ◽  
Australian Plate

Abstrak Kota Bengkulu merupakan salah satu kota yang berada pada pesisir barat Pulau Sumatera yang mendapat pengaruh dari pertemuan  Lempeng  Indo-Australia  dan  Lempeng  Eurasia  serta  Patahan  Mentawai.  Kondisi  ini  menyebabkan  Kota  Bengkulu rawan akan bencana gempa bumi dan tsunami. Tujuan penelitian ini adalah untuk mengetahui pola spasial kawasan rawan gempa bumi dan tsunami sebagai salah satu upaya mitigasi bencana. Kawasan rawan gempa bumi diamati dengan mencari Peak Ground Acceleration (PGA) gempa bumi di Kota Bengkulu  pada tahun 2010 hingga 2018 sedangkan kawasan rawan tsunami diamati dengan mencari luas genangan tsunami dalam 3 skenario yaitu ketinggian gelombang  5 meter, 20 meter dan 25 meter dari garis pantai. Hasil  penelitian  menunjukkan  bahwa  wilayah  terbangun  eksiting  yang  memiliki  resiko  tertinggi  berada  bagian  pesisir selatan Kota Bengkulu dengan  wilayah  PGA tinggi serta genangan tsunami yang luas dari tinggi gelombang tsunami 25 meter.Wilayah ini berada pada Kecamatan Kampung Melayu dengan prediski luas terdampak sebesar 653,69 Ha. Abstract Bengkulu City is one of the cities on the west coast of Sumatra Island which has been influenced by the Indo-Australian Plate  and  the  Eurasian  Plate  as  well  as  the  Mentawai  Fault.  This  condition  makes  Bengkulu  City  prone  to  earthquakes  and tsunamis. The purpose of this study is to determine the spatial pattern of earthquake and tsunami prone areas as one of the disaster mitigation efforts. Earthquake-prone areas were observed by looking for the Peak Ground Acceleration (PGA) of earthquakes in Bengkulu City from 2010 to 2018 while tsunami-prone areas were observed by looking for the area of tsunami inundation in 3 scenarios, namely the wave height of 5 meters, 20 meters and 25 meters from the coastline . The results showed that the highly developed area with the highest risk was the southern coast of Bengkulu City with a high PGA area and a large tsunami inundation from a tsunami wave height of 25 meters. This area is located in the Kampung Melayu sub-district with a predisposition of an affected area of 653.69 hectares.

Analisis Percepatan Tanah Puncak Akibat Gempa Pada Kota Sorong Sebagai Upaya Mitigasi Bencana

2018 ◽  
Vol 4 (2) ◽  
pp. 14
Author(s):  
Imam Trianggoro Saputro ◽  
Mohammad Aris
Keyword(s):  
Peak Ground Acceleration ◽  
Ground Acceleration ◽  
Papua Barat

Sorong merupakan salah satu kota yang terletak di Provinsi Papua Barat. Daerah ini memiliki tingkat kerentanan yang tinggi terhadap ancaman bahaya gempa bumi karena lokasinya terletak di antara pertemuan lempengan tektonik dan beberapa sesar aktif. Tingkat kerawanan terhadap gempa pada daerah ini cukup tinggi. Pada September 2016, BMKG mencatat bahwa terjadi gempa bumi dengan skala magnitudo sebesar 6,8 SR (Skala Ritcher) dengan kedalaman 10 meter dari permukaan laut dan berjarak 31 km arah timur laut kota Sorong. Gempa ini bersifat merusak. Akibat gempa ini, sebanyak 62 orang terluka dan 257 rumah rusak. Untuk itu diperlukan suatu analisis terhadap percepatan tanah puncak (Peak Ground Acceleration) terbaru sebagai langkah mitigasi yang nantinya dapat digunakan untuk perencanaan gedung tahan gempa.Pengumpulan data gempa pada peneltian ini yaitu data gempa yang terjadi sekitar kota Sorong pada rentang waktu 1900-2017. Data gempa yang diambil adalah yang berpotensi merusak struktur yaitu dengan magnitudo (Mw) ≥ 5 dengan radius gempa 500 km dari kota Sorong dan memiliki kedalaman antara 0 - 300 km. Setelah diperoleh data gempa maka dibuat peta sebaran gempa di wilayah kota Sorong. Percepatan tanah puncak dihitung berdasarkan fungsi atenuasi matuscha (1980) dan menggunakan pendekatan metode Gumbel.Hasil penelitian menunjukkan bahwa nilai percepatan tanah puncak (PGA) di wilayah kota Sorong pada periode ulang 2500 tahun atau menggunakan probabilitas terlampaui 2% dalam 50 tahun umur rencana bangunan diperoleh sebesar 708.9520 cm/dt2 atau 0.7227 g. Apabila melihat peta gempa SNI 1726-2012 yang menggunakan probabilitas yang sama maka nilai percepatan tanah puncak (PGA) ketika gempa bumi berkisar antara 0.4 g - 0.6 g. Nilai ini mengalami peningkatan yang berarti tingkat resiko terhadap gempa bumi pada wilayah kota Sorong meningkat.

scholarly journals A Methodology of Workshops to Explore Mutual Assistance Activities for Earthquake Disaster Mitigation

2021 ◽  
Vol 18 (7) ◽  
pp. 3814
Author(s):  
Kazuki Karashima ◽  
Akira Ohgai
Keyword(s):  
Disaster Management ◽  
Quantitative Evaluation ◽  
Management Plan ◽  
Suggested Method ◽  
Disaster Mitigation ◽  
Earthquake Disaster ◽  
Support Tool ◽  
Mutual Assistance ◽  
Large Earthquakes

To minimize the damage caused by large earthquakes, mutual assistance activities between residents and rescue victims (i.e., to support residents who cannot evacuate individually) are important. To enhance these activities, the technologies and methods for creating a Community Disaster Management Plan (CDMP), based on the quantitative evaluation of mutual assistance abilities, are required. However, the lack of a method for it is a key issue. This study aims to develop a methodology of workshops for making CDMPs by using the developed support tool by the authors to explore and promote mutual assistance activities. Through the demonstration and examination of a Community Disaster Management Plan on actual districts, the findings mentioned in this article were obtained. Moreover, the usability of this method is shown. In particular, this method is effective at revising CDMPs, and raising resident awareness on the importance of mutual assistance. The suggested method can also improve the lack of techniques involved in promoting mutual assistance.

A Geospatial Liquefaction Model for Rapid Response and Loss Estimation

2015 ◽  
Vol 31 (3) ◽  
pp. 1813-1837 ◽  
Author(s):  
Jing Zhu ◽  
Davene Daley ◽  
Laurie G. Baise ◽  
Eric M. Thompson ◽  
David J. Wald ◽  
...  
Keyword(s):  
Peak Ground Acceleration ◽  
Loss Estimation ◽  
Rapid Response ◽  
Ground Acceleration ◽  
Explanatory Variables ◽  
First Order ◽  
Database Development ◽  
Digital Elevation ◽  
Compound Topographic Index ◽  
Distance Parameter

We describe an approach to model liquefaction extent that focuses on identifying broadly available geospatial variables (e.g., derived from digital elevation models) and earthquake-specific parameters (e.g., peak ground acceleration, PGA). A key step is database development: We focus on the 1995 Kobe and 2010–2011 Christchurch earthquakes because the presence/absence of liquefaction has been mapped so that the database is unbiased with respect to the areal extent of liquefaction. We derive two liquefaction models with explanatory variables that include PGA, shear-wave velocity, compound topographic index, and a newly defined normalized distance parameter (distance to coast divided by the sum of distance to coast and distance to the basin inland edge). To check the portability/reliability of these models, we apply them to the 2010 Haiti earthquake. We conclude that these models provide first-order approximations of the extent of liquefaction, appropriate for use in rapid response, loss estimation, and simulations.

PEMETAAN ZONA RESIKO GEMPABUMI BERDASARKAN PEAK GROUND ACCELERATION TERHADAP ENERGI DAN SUMBERDAYA MINERAL DI PROVINSI MALUKU UTARA

2021 ◽  
pp. 171
Author(s):  
Aditya Saifuddin ◽  
Enni Intan Pertiwi
Keyword(s):  
Peak Ground Acceleration ◽  
Ground Acceleration

Maluku Utara merupakan salah satu provinsi di Indonesia yang tercatat sebagai wilayah yang sering terjadi gempa karena terletak di pertemuan Lempeng Eurasia, Lempeng Pasifik, Lempeng Mikro Halmahera, dan Lempeng Oceanic Laut Maluku. Selain itu Maluku Utara juga tercatat sebagai penyumbang besar Penerimaan Negara Bukan Pajak (PNBP) di sektor pertambangan. Pemetaan zona resiko bencana gempabumi berdasarkan intensitas keaktifan gempa dapat digunakan sebagai inovasi teknologi guna mengetahui spesifikasi daerah yang memiliki resiko tinggi karena dalam penganalisisan ini memperhitungkan percepatan getaran tanah maksimum akibat gempa bumi yang diperoleh berdasarkan data gempabumi yang terjadi pada kurun waktu 2000-2020 dengan memperhatikan besarnya Magnitudo dan jarak Hiposenternya. Hasil penganalisisan Peak Ground Acceleration (PGA) ditampilkan dalam bentuk peta dan juga ditumpang susunkan dengan peta wilayah izin usaha tambang yang dikeluarkan oleh Kementrian Energi dan Sumberdaya Mineral (ESDM) sehingga hasil akhir diperoleh zona wilayah izin tamabang berdasarkan tingkat resiko bahaya gempabumi.

scholarly journals Earthquake Resistant Residential Neighborhood in China: Examination of vulnerability in outdoor spaces

2018 ◽  
Vol 3 (7) ◽  
pp. 59-69
Author(s):  
Xue Ma ◽  
Ryuzo Ohno
Keyword(s):  
Publishing House ◽  
Disaster Mitigation ◽  
Target Area ◽  
Earthquake Disaster ◽  
Residential Neighborhood ◽  
Outdoor Spaces ◽  
Earthquake Resistant ◽  
International Publishing ◽  
The City ◽  
Open Access Article

China is a seismic active country. We suffered a large number of fatalities by earthquake damage. A great deal of requirements on disaster mitigation has been putting forward and which is becoming a hot topic in the society. This paper focuses on the safety situation of residential environment in Chinese cities, tries to examine the vulnerabilities for earthquake disaster mitigation. We chose the city of Tianjin as target area applying for the detail analysis. An evaluation was interpreted into suggestions and advices on planning and management. Keywords: Vulnerability, Earthquake disaster mitigation, Residential area eISSN 2514-751X © 2018. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.

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