Journal of Regional and Rural Development Planning
Vol. 8 No. 2 (2024): Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangu

Analisis Bencana Longsor akibat Gempa bumi Cianjur 2022 dengan DInSAR

Brenda Arham (Unknown)
Adi Wibowo (Unknown)



Article Info

Publish Date
11 Jul 2024

Abstract

Indonesia is a country with a high potential for disasters such as earthquakes, which usually cause changes in the shape/position of the earth's surface (deformation). The Cianjur area has a seismic vulnerability level value based on maximum ground acceleration, maximum intensity and earthquake return period. On Monday, November 21, 2022 at 13.21 WIB there was an earthquake with a magnitude of 5.6 M in the Cianjur area of West Java based on BMKG data, until November 22, 2022 there were 140 aftershocks with magnitudes of 1.2-4.2 and an average depth of approximately 10 km. As a result, causing subsidence, the purpose of this study is to determine the magnitude of subsidence in landslides due to the 2022 Cianjur earthquake using the DInSAR method. Vertical land subsidence (displacement data) due to the earthquake from DInSAR observations on displacement data, which ranged up to -101mm vertically with two soil types andosol and cambisol Overlay analysis of soil type and displacement data showed the highest area of displacement, found a match based on information circulating that Cugenang Sub-district is the most severely affected area (the existence of a new fault "Cugenang").

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Journal Info

Abbrev

p2wd

Publisher

Subject

Humanities Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Environmental Science Social Sciences

Description

JP2WD covers topics related to regional science, regional and/or rural planning, regional economics, spatial and environmental planning, regional information system, community development, and public policy. Emphasis are placed on issues related to rural development in developing and middle-income ...