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Rudarsko-geološko-naftni zbornik, Vol. 36 No. 3, 2021.

Preliminary communication

https://doi.org/10.17794/rgn.2021.3.8

SMOOTHED GRIDDED SEISMICITY EFFECT FOR LAND-USE DEVELOPMENT, CASE STUDY: KALIMANTAN ISLAND, INDONESIA

Arifan Jaya Syahbana orcid id orcid.org/0000-0003-2204-7355 ; Faculty of Civil and Environmental Engineering, Bandung Institute of Technology, Bandung, Indonesia
Prahara Iqbal ; Geological Engineering Faculty, Padjadjaran University, Sumedang, Indonesia
Masyhur Irsyam ; Faculty of Civil and Environmental Engineering, Bandung Institute of Technology, Bandung, Indonesia
M. Asrurifak ; School of Civil Engineering, National Institute of Science and Technology, Indonesia
Hendriyawan Hendriyawan ; Faculty of Civil and Environmental Engineering, Bandung Institute of Technology, Bandung, Indonesia

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Abstract

Smoothed gridded seismicity is an analysis model in seismicity that allows for the obtaining of a rate based on the b-value and the same magnitude range. The data study has been collected and analyzed from a background source gathered by PusGen, referred to as the PusGen catalogue, with approximately 70 thousand data points. Two software programs (i.e. USGS PSHA and OpenQuake) were utilized in this study, and both programs have been proven as reliable in the creation of the 2017 Indonesia Earthquake Hazard Map. The final steps are to compare the acceleration map results with the Kalimantan Island land-use map and to analyze suitability development planning against potential hazards and earthquake risks. The results stated that: (1) acceleration due to the shallow background earthquake for the Kalimantan region, range from 0.00-0.25g (using USGS PSHA) and 0.0-0.4g (using OpenQuake); (2) meanwhile, based on the deep background earthquake source, the maximum accelerations that occur are 0.15g and 0.25g when using USGS PSHA and OpenQuake, respectively; (3) the utilized of land-use for the current and future years is in line with the results of the acceleration simulation. The study recommends to take into account the seismic aspects in new planning of the capital city, mining and residential areas in order to reduce the existing risks.

Keywords

smoothed gridded seismicity; earthquake background source; land-use; Kalimantan Island

Hrčak ID:

259516

URI

https://hrcak.srce.hr/259516

Publication date:

23.6.2021.

Article data in other languages: croatian

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