Johor Earthquakes: Risks and Impacts for Malaysia & Singapore
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Earthquakes in Singapore: Historical Precedents and Future Risks
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Recent tremors felt in Singapore have sparked discussion about the possibility of larger earthquakes. Experts confirm that while rare, seismic activity has occurred in and around the region historically, and climate change may indirectly exacerbate future risks.
Last Updated: August 26, 2024, 11:53:02 AM PDT
Recent Tremors and Expert Confirmation
recent tremors felt by residents in Singapore have raised concerns about the potential for larger earthquakes. Geologist Azlan, as reported by CNA, confirmed that “a larger earthquake does exist,” acknowledging the possibility of future seismic events.
Historical Seismic Activity in the Region
Geologist Wei Shengji of Nanyang Technological UniversityS (NTU) Asian School of Habitat told CNA that there is historical precedent for significant earthquakes occurring in the region. He cited two tremors recorded in 1922 with epicenters in Johor state, Malaysia. These events registered magnitudes of 5.0 and 5.4, with the former located near the Mersing Fault Zone and the latter near the bentong Suture.
“There is a chance that larger earthquakes could take place in the future, as bigger events (such as those in 1922) did occur in the past,” Wei Shengji stated. “The 1922 events were widely felt in Singapore.”
The 1948 Earthquake: Closer to Home
Further evidence of seismic activity near Singapore comes from an earthquake in December 1948. According to Meltzner, this earthquake, felt widely in areas like Geylang, Bukit Timah, and Sentosa Island, reportedly damaged a house in Chinatown.
“Because the shaking in 1948 was similar to what people felt (on Sunday),the 1948 earthquake was probably also about magnitude 4,but much closer to singapore,demonstrating that earthquakes happen in Singapore,too,even if they are rare,” Meltzner explained.
The indirect Link Between Climate Change and Seismic Activity
While climate change doesn’t directly *cause* earthquakes, environmentalist Renard Siew, climate change advisor to the Center for Governance and Political Studies (Cent-GPS), suggests it can amplify seismic risk. As reported by CNA, Siew cited studies from India and Taiwan demonstrating that increased rainfall, a consequence of climate change, can lead to interactions between soil and ground earth, possibly triggering more seismic activity in certain areas.
“Climate change doesn’t cause earthquakes directly but it can definitely amplify conditions for seismic risk,” Siew concluded.
Understanding Fault Lines and Seismic Zones
The presence of the Mersing Fault Zone and the Bentong Suture, mentioned by Wei Shengji, highlights the geological context of the region.