Indonesian Journal of Environment and Disaster
Vol. 4 No. 2 (2025): Indonesian Journal of Environment and Disaster

PEMETAAN RAWAN BENCANA GEMPABUMI DI SEPANJANG SESAR LASEM BERDASARKAN NILAI PGA

Vemirantih, Dini (Unknown)
Maharani, Yohana Nooradika (Unknown)
Sorja Koesuma (Unknown)



Article Info

Publish Date
25 Oct 2025

Abstract

MAPPING OF EARTHQUAKE DISASTER PROTECTION Along the LASEM FAULT BASED ON PGA VALUES The region traversed by the Lasem Fault has a high potential for earthquake disasters, although no major recurring events have occurred to date. This condition makes the area particularly interesting for study, especially due to the limited amount of research and mitigation efforts based on quantitative data. This study aims to identify and map the seismic hazard levels around the Lasem Fault using the Deterministic Seismic Hazard Analysis (DSHA) approach, which has been widely implemented in earthquake risk assessments for its ability to provide deterministic estimates of Peak Ground Acceleration (PGA). PGA values are calculated at several points based on relevant earthquake source parameters and local site characteristics. The analysis results show a variation of PGA values, which are classified into several seismic hazard levels and then mapped to provide a visual representation of risk distribution. The results of the analysis are then mapped using QGIS and further processed with the InaSAFE plugin to identify public facilities located in vulnerable zones. This study recommends further investigation into the structural response of buildings to the predicted maximum ground shaking, as well as the integration of the findings into spatial planning policies, earthquake-resistant building design, and other mitigation efforts. The outcomes are expected to serve as a basis for informed decision-making in disaster risk reduction in areas affected by the Lasem Fault.

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Journal Info

Abbrev

ijed

Publisher

Subject

Earth & Planetary Sciences Environmental Science

Description

The Indonesian Journal of Environment and Disaster (IJED) is a multi-disciplinary journal covering environment and disaster science and its implementation in society and development. The articles at IJED are expected to contain facts, problems and directions for solving problems regarding the ...