Speaker
Description
Sabah is the most seismically active state in Malaysia where it has recorded higher number of moderate seismological activities for the past decades. The seismicity record of Sabah shows the presence of two distinctive seismic zones, which are Ranau in Kota Kinabalu and Lahad Datu in the southeast of the region. The IMS network setup by the CTBTO has successfully detected seismic events occurred in the region for the past decades. In this study, we present the results of data analysis of earthquake events occurred around Sabah region, distributed over 19 years’ periods, from 2002 to 2020. The results represent the preliminary findings of seismic hazard assessment (SHA) in Sabah using the IMS data, where the results have enabled the quantification of seismic hazard in the region in terms of recurrence periods and probabilities of occurrence of earthquake at any given magnitude. This study demonstrates that other than for nuclear explosion monitoring, the IMS data can also be used for civil and scientific applications and can make significant contribution in seismological research. Consequently, the findings could be used to assess the impact of seismic events in Sabah as well as assisting relevant entities in development planning and disaster management.
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The IMS monitoring capability of seismicity leads as well to the estimation of the seismic hazard posed by earthquakes in many different localities, on which one of the many potential civil applications of IMS data. In addition to many other proven studies that had been performed
