Geologists are sounding the alarm on the Masbate segment of the Philippine Fault System, warning that it's prone to repeated ruptures, posing a significant threat to local communities and infrastructure.
According to a recent study, residents of Dimasalang, Palanas, and Cataingan municipalities are living dangerously close to the fault. The researchers found that the same segment of the fault ruptured twice within a short period, highlighting the urgent need for hazard awareness and preparedness.
The devastating earthquakes of 2003 and 2020 serve as stark reminders of the fault's destructive power. Both quakes caused significant surface rupture, landslides, and local tsunamis. One coconut tree, split in half by the 2003 earthquake, was further damaged during the 2020 event, demonstrating the fault's tendency to rupture in the same location.
Geologists believe that the Masbate segment's frequent seismic activity may be due to rapid tectonic stress build-up or complex fault interactions. To better understand the fault's behavior and assess ground rupture hazards, ongoing seismic monitoring and active fault mapping are crucial.
While the recent earthquakes have focused attention on the Masbate fault, it's important to remember that ground rupture hazards can occur anywhere along the Philippine Fault System. To mitigate risks, experts recommend establishing buffer zones around faults and educating communities about earthquake preparedness.
In response to these concerns, PHIVOLCS and the Masbate provincial government have taken steps to raise awareness by placing markers along the fault. However, more needs to be done to ensure that residents are fully prepared for future seismic events.
As the threat of earthquakes continues to loom large over Masbate, it's imperative that both local authorities and residents prioritize disaster preparedness to protect lives and property.
Source: GMANews
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