28 June 2021 to 2 July 2021
Europe/Vienna timezone

Analysis on earthquake databases of the Sabah region and its application for seismic hazard assessment using the IMS data of the CTBTO

1 Jul 2021, 09:00


e-Poster T5.2 - Experience with and Possible Additional Contributions to Issues of Global Concern such as Disaster Risk Mitigation, Climate Change Studies and Sustainable Development Goals T5.2 e-poster session


Mr Muhammed Zulfakar Zolkaffly (Malaysia Nuclear Agency, Selangor, Malaysia)


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.

Promotional text

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

Primary author

Mr Muhammed Zulfakar Zolkaffly (Malaysia Nuclear Agency, Selangor, Malaysia)


Mr Faisal Izwan Abdul Rashid (Malaysia Nuclear Agency, Selangor, Malaysia)

Presentation materials