Earthquake Damage Level of Gorontalo Area Based on Seismicity and Peak Ground Acceleration

Intan Noviantari Manyoe, Lantu ., Samsu Arif, Rakhmat Jaya Lahay

Abstract


Gorontalo is located at the macro and micro plate boundary, therefore it is located in an active seismotectonic region. This study aims to analyze earthquake damage level in Gorontalo based on seismicity and peak ground acceleration. The data used is obtained from the USGS. Data is made into a database and plotted onto a geological map. Calculation of peak ground acceleration is obtained using the Kawashumi formula. The results of this study indicate that Gorontalo is included in the slight to moderate earthquake damage level because it is dominated by shallow to intermediate earthquakes depth, light to moderate earthquake magnitude, and have a peak ground acceleration 1,462 - 99,714 gal.


Keywords


Seismicity, Peak Ground Acceleration, Earthquake, Gorontalo

Full Text:

PDF

References


Apandi, T. and Bachri, S. (1997). Peta Geologi Lembar Kotamobagu, Sulawesi. Bandung: Pusat Penelitian dan Pengembangan Geologi.

Bachri, S., Sukido, and Ratman, N. (1993). Peta Geologi Lembar Tilamuta, Sulawesi. Bandung: Pusat Penelitian dan Pengembangan Geologi.

Bird, P. (2003). An updated digital model of plate boundaries. Geochemistry, Geophysics, Geosystems, 4(3). https://doi.org/10.1029/2001GC000252

BMKG. (2018). Skala Intensitas BMKG. Citing Internet sources URL http://www.bmkg.go.id

Milsom, J., Masson, D., Nichols, G., Sikumbang, N., Dwiyanto, B., Parson, L., & Kallagher, H. (1992). The Manokwari Trough and the western end of the New Guinea Trench. Tectonics, 11(1), 145153. https://doi.org/10.1029/91TC01257

Molnar, P., & Dayem, K. E. (2010). Major intracontinental strike-slip faults and contrasts in lithospheric strength. Geosphere, 6(4), 444467. https://doi.org/10.1130/GES00519.1

Spence, W., Sipkin, S. A., & Choy, G. L. (1989). Measuring the size of an earthquake. Earthquakes & Volcanoes, 21(1), 5863.

UPSeis. (2014). Earthquakes Magnitude Scale and Classes. https://doi.org/10.1177/0733464814563606

USGS. (2018). Magnitude/Intensity Comparison. Citing Internet sources URL http://www.earthquake.usgs.gov

Simandjuntak, T.O. 1992. Struktur Duplek (Dwi Unsur) Sesar Sungkup Sesar Jurus Mendatar di Lengan Timur Sulawesi. In Proceedings of the PIT XV IAGI.

Soetadi, R., Sukarman., Soetardjo, R. (1974). Pokok-Pokok Pengetahuan Seismologi, Gravitasi dan Tanda Waktu. Jakarta: Akademi Meteorologi dan Geofisika.




DOI: https://doi.org/10.34312/jgeosrev.v1i1.2018

Bookmark and Share


Copyright (c) 2019 Jambura Geoscience Review

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.