Four Southeast Asian nations—Indonesia, the Philippines, Myanmar, and Thailand—are now identified as particularly vulnerable to megathrust earthquakes, necessitating urgent regional collaboration in disaster readiness and mitigation.
The looming threat of megathrust earthquakes and tsunamis in Southeast Asia has brought Indonesia, the Philippines, Myanmar, and Thailand into focus, with calls for these nations to significantly bolster disaster preparedness and community resilience.
Identified High-Risk Areas
The research article “Geometric Controls on Megathrust Earthquakes” by scientists Steven M. Plescia and Gavin P. Hayes lists 17 regions globally, including areas in ASEAN countries, that are susceptible to these colossal seismic events. Notably, Indonesia’s Sumatra, Java, the southern parts of Bali, and the Lesser Sunda Islands are highlighted, along with specific regions in the Philippines facing the Pacific Ocean.

Regional Vulnerability and Preparedness
Both Indonesia and the Philippines have historical precedents of devastating earthquakes and are thus prioritizing the strengthening of seismic monitoring and public awareness campaigns. Myanmar and Thailand, with coastal areas also at risk, are enhancing their disaster response strategies to mitigate potential casualties and infrastructure damage.
Global Perspective on Megathrust Zones
Apart from Southeast Asia, the study mentions other global regions prone to megathrust earthquakes, including Alaska-Aleutians, the Caribbean, Cascadia, Izu-Bonin, Kamchatka-Kuril-Japan, Kermadec, Makran, Ryukyu, Scotia, Solomon Islands, and Vanuatu. This highlights the widespread nature of the threat and the need for comprehensive international research and cooperation.
Strengthening Infrastructure and Community Awareness
In response to these threats, ASEAN countries are intensifying efforts to integrate robust building codes, regular disaster drills, and extensive public education campaigns to foster a culture of disaster preparedness.
Read More: BMKG Urges Tourism Sector to Enhance Disaster Preparedness
Implications for Global and Regional Safety
The recognition of these high-risk areas necessitates a concerted effort from all levels of government and the international community to enhance protective measures, ensuring the safety and security of millions living in and traveling to these regions.
The enhanced awareness and preparedness of neighboring countries such as Indonesia and the Philippines serve as crucial measures in mitigating the impacts of potential megathrust earthquakes. The collaborative efforts across these ASEAN nations underline a shared commitment to safeguarding the region’s populace and infrastructure.
Recent studies underscore the heightened risk of megathrust earthquakes in Southeast Asia, specifically targeting Indonesia, the Philippines, Myanmar, and Thailand. These nations are advised to ramp up their disaster preparedness strategies to cope with possible seismic catastrophes effectively.
Sources: PIkiran Rakyat, Pikiran Rakyat, CNBC Indonesia (2024)











