INA Seismic Microzonation Information System - Indonesian Agency for Meteorological, Climatological and Geophysics
Original (non-English) name
Acronym
INA Seismic Microzonation Information System - BMKG
Citation
Abstract
The Indonesian territory has a high level of vulnerability to earthquakes because it is located in the junction area of 3 large plates, namely the Eurasian Plate, the Indo-Australian Plate, the Pacific Plate and also the number of faults that stretch across the region causing Indonesia. One of the efforts to mitigate earthquake disasters is to conduct earthquake hazard microzonation efforts. The Center for Research and Development of BMKG has carried out ongoing research in the field of earthquake microzonation with the aim of obtaining information on the level of earthquake hazard in an area based on measured microtremor parameter values, among others carried out in the Sukabumi area (2009), Bantul (2010), Padang (2011) ), Cilacap (2012), Kulonprogo (2014), Tasikmalaya (2017), and Garut (2018). This study tries to make a prototype of the seismic microzonation information system research results from the BMKG Research and Development Center in a web-based spatial information system called InaSMIS (Indonesia Seismic Microzonation Information System). InaSMIS contains information on the analysis of microtremor survey results, including the value of the dominant period (fo), the amplification factor (Ao), the Seismic Vulnerability Index (Kg), Vs30, the Probability Seismic Hazard Analysis (PSHA) which states the level of earthquake hazard in an area. InaSIMS is still being developed in the research stage and is not yet an operational service for BMKG. In the future, InaSMIS is expected to be a source of public information to determine the level of earthquake hazard in Indonesian territory.