Journal of Sustainable Engineering: Proceedings Series
Vol 1 No 1 (2019)

Acceleration Response Spectra for M 7.4 Donggala Earthquake and Comparison with Design Spectra

Bambang Sunardi (Agency for Meteorology Climatology and Geophysics, Indonesia)
Sulastri (Agency for Meteorology Climatology and Geophysics, Indonesia)
Dwikorita Karnawati (Agency for Meteorology Climatology and Geophysics, Indonesia)
Urip Haryoko (Agency for Meteorology Climatology and Geophysics, Indonesia)
Supriyanto Rohadi (Agency for Meteorology Climatology and Geophysics, Indonesia)
Sigit Pramono (Agency for Meteorology Climatology and Geophysics, Indonesia)
Ari Sungkowo (Agency for Meteorology Climatology and Geophysics, Indonesia)



Article Info

Publish Date
30 Jun 2019

Abstract

A 7.4 magnitude earthquake have strucked Donggala on September 28th 2018, followed by tsunami and liquefaction which hit Palu, Central Sulawesi, a few minutes later. This event had resulted in damage to buildings, and caused more than 2,000 people were killed and injured. Indonesia already have a building code in form of SNI 1726:2002 which had been updated to SNI 1726:2012. This paper analyses the hazard level caused by the 2018 Donggala earthquake compared to the existing design spectra, as mentioned in SNI 1726:2002 and SNI 1726:2012. A simple analysis was carried out by comparing Donggala earthquake’s acceleration response spectra with the existing design spectra, at the MPSI accelerograph station. The site class at MPSI station is hard soil (SC). The seismic hazard in Palu and Donggala refers to SNI 1726:2002 is included in the earthquake area 4. The maximum earthquake response factor for earthquake area 4 is about 0.6 for hard soil type (SC). The MPSI station recorded peak ground acceleration of Donggala earthquake around 0.14 g. The acceleration response spectra recorded at the MPSI station showed a peak value of around 0.71 g for the N component. This value is actually still below the design spectra referring to SNI 1726:2012, which the peak value is 0.88 g for SC, but, it exceeded the design spectra of SNI 1726:2002.

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Journal Info

Abbrev

joseps

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

Description

Journal of Sustainable Engineering: Proceedings Series (JoSEPS) is a journal that contains -- as suggested by its name -- articles that previously presented in conferences, organized by the Faculty of Engineering, Universitas Sam Ratulangi, Manado-INDONESIA. ...