The Philippine Institute of Volcanology and Seismology said Thursday that people in vast swaths of Mindanao should be on the alert for potential landslides after a deadly earthquake that left at least 4 dead across the south.
About 22 kilometers southeast of Tulunan, North Cotabato Wednesday night, the magnitude 6.3 tremor struck, leaving at least 60 wounded across Mindanao, creating cracks in buildings and knocking out.
There could be landslides during aftershocks or heavy rains, particularly those experiencing Intensity 7 and 6 shakings.
At a “destructive” strength of 7 in Tulunan and M’Lang in North Cotabato and neighboring Kidapawan City, the tectonic tremor was felt, while at Digos City, Davao del Sur, a “very powerful” intensity of 6 shaking was felt.
Solidum said earlier that aftershocks could be strong and able to cause severe damage. Some aftershocks are most likely to be felt at low intensities, but we can not remove the possibility of similar intensities in the epicentric zone, he said.
He maintained that the quake was not strong enough to cause a tsunami that should have occurred after the tremor “30 minutes or less.”
The Philippines is experiencing frequent earthquakes on the geologically active Pacific Ring of Fire.
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