Determination of the seismicity and peak ground acceleration for Lombok island: An evaluation on tectonic setting

7Citations
Citations of this article
34Readers
Mendeley users who have this article in their library.

Abstract

Lombok Island is located in the Nusatenggara region, which is considered as one of the most active seismic parts of Indonesia. The determination of seismicity is crucial to the island, since Lombok Island is a relatively dense populated small island. Earthquakes that occurred around the island were generated by southern subduction mega-thrust and northern back-arc thrust. Mostly, distributions are concentrated on the north-west and south-east parts of Lombok Island. Probabilistic data analysis of 309 earthquake events during the period of 1973 - 2017 results in the Gutenberg-Richter parameters (a and b) of 3.62 and-0.53 indicating medium to high seismic activities. The Joyner-Boore attenuation relation seems to be suitable for seismic characteristics of the island. The reconstruction of tectonic setting indicates that the Benioff zone may develop at the depths of 150 km beneath the island causing horizontal tectonic forces working within the direction of N 171 °E - N 351 °E. This could create a strike-slip fault on the crustal basement within the NE - SW direction.

Cite

CITATION STYLE

APA

Agustawijaya, D. S., Sulistiyono, H., & Elhuda, I. (2018). Determination of the seismicity and peak ground acceleration for Lombok island: An evaluation on tectonic setting. In MATEC Web of Conferences (Vol. 195). EDP Sciences. https://doi.org/10.1051/matecconf/201819503018

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free