Analisis Ketidakpastian (Uncertainty) Dan Sensitivitas (Sensitivity) Probabilistic Seismic Hazard Analysis (PSHA) Studi Kasus di Jakarta
| Student | Stefani Karyani Hia |
|---|---|
| Supervisor(s) | Prof. Dr. Ir. Masyhur Irsyam, M.S.E. & Dayu Apoji, S.T., M.T., M.Sc., Ph.D. |
| Year | 2026 |
Brief Abstract
Background
As the center of Indonesia’s national strategic projects and rapid urban development, Jakarta’s high population density necessitates a precise visualization of seismic acceleration from various earthquake sources. Understanding the distribution of ground motion is critical for mitigating disaster risks in one of the world's most vulnerable metropolitan areas.
Objective
This research aims to evaluate the sensitivity of Probabilistic Seismic Hazard Analysis (PSHA) results in Jakarta by analyzing the impact of various PSHA input parameters, including seismic source characteristics and earthquake catalogs.
Methodology
The analysis is conducted using the NSHMP-USGS framework, integrating the Pusgen earthquake catalog and parameters for background (hazgrid), fault (hazFX), and subduction (hazSUB) sources to calculate the total hazard (hazall). The resulting hazard values are spatially visualized using the Ordinary Kriging interpolation method in QGIS to map the distribution of peak ground acceleration and spectral acceleration across Jakarta.
Key Contribution
The findings identify the most influential input parameters in seismic hazard estimation, providing a robust scientific basis for future Seismic Risk Assessments and Socio-economic Loss Estimations. This study serves as a fundamental reference for urban planning and the development of resilient infrastructure in the Jakarta metropolitan area.