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Manila Bulletin devider Philippines devider National devider No tsunami threat in PH after 7.0-magnitude quake off Alaska peninsula -- Phivolcs

No tsunami threat in PH after 7.0-magnitude quake off Alaska peninsula -- Phivolcs

Published Aug 14, 2021 08:41 pm

(PHIVOLCS)

There is no threat of a tsunami hitting the Philippines after a 7.0-magnitude earthquake in the Alaska Peninsula, said the Philippine Institute of Volcanology and Seismology (Phivolcs) on Saturday, Aug. 14.

Phivolcs said the quake occurred at a depth of 32 kilometers around 7:57 p.m. (Philippine time).

"No destructive tsunami threat exists based on available data," it said.

It added that "no action is required" as there is "no tsunami threat to the Philippines from this earthquake."

Phivolcs defines a tsunami as a series of sea waves commonly generated by under-the-sea earthquakes and whose heights could be greater than 5 meters.

It is erroneously called tidal waves and sometimes mistakenly associated with storm surges, it added.

Phivolcs said tsunamis can occur when the earthquake is shallow-seated and strong enough to displace parts of the seabed and disturb the mass of water over it.

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