Jambura Geoscience Review
Vol 3, No 1 (2021): Jambura Geoscience Review (JGEOSREV)

Analisis Parameter Gempabumi Dengan Struktur Geologi Di Daerah Asparaga, Gorontalo

Ratna Sari Madusila (Teknik Geologi, Universitas Negeri Gorontalo, Gorontalo 96128, Indonesia)
Intan Noviantari Manyoe (Teknik Geologi, Universitas Negeri Gorontalo, Gorontalo 96128, Indonesia)
Cindi Claudia Male (Teknik Geologi, Universitas Negeri Gorontalo, Gorontalo 96128, Indonesia)



Article Info

Publish Date
19 Jan 2021

Abstract

Gorontalo is an area located in the North Arm of Sulawesi which has a complex geological structure as a result of the submergence of the Sulawesi Sea and East Sangihe so that this area is considered an earthquake-prone area. The existence of the regional structure and the mapping of the earthquake point distribution is interesting to be studied more deeply because it affects seismic activity in the area. The purpose of this study is to analyze earthquakes in the Asparaga area based on their depth and magnitude and to relate them to the geological structures found in the study area. The earthquake data used were obtained from USGS. Satellite image data used is the SRTM satellite image. Earthquake data is mapped to produce depth maps, magnitude maps, and earthquake zoning maps. Lineament data were processed using a rosette diagram. Lineament can reflect the morphology observed on the earth's surface as a result of the activity of geological forces. The results showed that the Asparaga area had shallow earthquake depths and moderate to large magnitudes. The focus of the earthquake was right on the path traversed by the geological structure and its relatively northwest-southeast direction. The geological structure in the research location is the epicenter of the earthquake because it is crossed by regional geological structures.

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Journal Info

Abbrev

jgeosrev

Publisher

Subject

Earth & Planetary Sciences

Description

Jambura Geoscience Review (JGEOSREV, P-ISSN: 2623-0682, E-ISSN: 2656-0380) is an open-access journal, which publishes original papers about all aspects of the Earth and Geosciences. This comprises the solid earth, the atmosphere, the hydrosphere, and the biosphere. In addition, it provides a ...