Philippines earthquakes

M5.2 earthquake 16 km ESE of Union, Philippines

A magnitude 5.2 earthquake struck 16 km ESE of Union, Philippines on Tue, May 20, 1975, 11:40 PM GMT+8 (15:40 UTC), 68 km (42 mi) below the surface.

A larger quake followed: M5.8 40 km ENE of Santa Monica, Philippines. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 5.2 (mb), moderate
Local time: Tue, May 20, 1975, 11:40 PM GMT+8
UTC: 1975-05-20 15:40:10 UTC
Depth: 68.0 km (42.3 mi), shallow
Epicenter: 9.691° N, 126.248° E
Region: Philippines
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 64

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.2 and up: 4 in the 60 days after this one and 7 in the 30 days before it.

After

Before

Earthquakes today Philippines earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000b3j (also filed as iscgem729197). Read Sat, Sep 26, 2026, 2:17 PM UTC.