Event ID	1378670
Event time	2025-05-31 00:52:23 (UTC)
Local time	2025-05-30 16:52:23 - [It was afternoon in the affected area.]
Last update	2025-05-31 01:00:32 (UTC)
Magnitude	4
Depth	87 km
Class	Light
Hypocenter	Medium deep
Mercalli scale	2
Possible effects	A few people might notice movement if they are at rest and/or on the upper floors of tall buildings.
Data status
Data provider	EMSC

Continent	Pacific Ocean - West
Country	Philippines
Administration area	Ilocos
Nearest settlement	San Fernando
Distance	14 km
Course	W
Surface type	underwater quake
Tsunami region	North Pacific
Water surface name	South China Sea

Nearest nuclear power plants

There is no known nuclear power plant nearby.

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Nearest marine ports

There is no known marine port nearby.

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Nearest airports

There is no known marine port nearby.

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Nearest volcanoes

There is no known volcanoes nearby.

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Quick Analysis

According to the epicenter of the quake, this is an underwater quake.