Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Vol. 23 No. 2 (2022): Jurnal Geologi dan Sumberdaya Mineral

Seismotectonic, Potential Seismic and Volcano Hazard of Minahasa Peninsula, Eastern Indonesia

Asdani Soehaimi (BRIN)
Tatang Padmawidjaja (BRIN)
S.R Sinung Baskoro (Pusat Survei Geologi)
Fitriani Agustin (Pusat Survei Geologi)
Mohamad Ridwan (Unknown)



Article Info

Publish Date
03 Jun 2022

Abstract

The Minahasa Peninsula is located in the western flank of Mollucca seismotectonic zone existed, where are four active tectonic plates colliding from east to west are the Philippine Oceanic Plate, Halmahera Micro Continental Plate, Mayu Ridge Micro Oceanic Slab Plate and the Minahasa Peninsula Micro Continental Plate. The result of the probabilistic seismic hazard assessment in Manado City and surrounding area, Zone I (site class SE), Zone II (site class SD) and Zone III (site class SC), shows the building and non building for risk category I, II, III and IV, has the seismic disign category D. Building and non building in Zone I (SD1=0,80g) with risk category I, II, III has structure seismic design category E and risk category IV has seismic design category F.The correlation of seismotectonic, structural geology, and seismicity to the volcanic centers distribution in this region, shows the Minahasa Peninsula volcanoes can be divided into two regions are the compressional and extentional volcanoes tectonic regions. To mitigate the seismic risk in this region, the structure for building and non building contraction is recommended to follow the procedures for planning earthquake resistance for building structures and non building (BSN, SNI 1726-2019). On another hand, for potential volcano hazard, recommended followed the guidance map of the volcanic hazard prone region by The Center for Volcano and Geological Hazard Mitigation, Geological Agency of Indonesia.Keywords: Mollucca seismotectonic zone, potential seismic and volcanoes hazard.

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Journal Info

Abbrev

JGSM

Publisher

Subject

Chemistry Earth & Planetary Sciences Energy

Description

The JGSM acts as a publication media of high quality scientific investigations resulted from various geological scientific issues. Published articles covers Geo-sciences, Geo-resources, Geo-hazards, and Geo-environments. Geo-sciences are basic earth sciences in geology, geophysics, and ...