Philippines earthquakes

M5.1 earthquake 62 km NE of Alugan, Philippines

A magnitude 5.1 earthquake struck 62 km NE of Alugan, Philippines on Sat, Nov 1, 1975, 9:57 PM GMT+8 (13:57 UTC), 51 km (32 mi) below the surface.

A larger quake followed: M6.1 73 km ENE of San Policarpo, 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: 5.1 (mb), moderate
Local time: Sat, Nov 1, 1975, 9:57 PM GMT+8
UTC: 1975-11-01 13:57:55 UTC
Depth: 51.0 km (31.7 mi), shallow
Epicenter: 12.583° N, 125.922° 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: 65

Nearest places

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

Nearby

Within 100 km, magnitude 2.1 and up: 28 in the 60 days after this one and 26 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 usp0000dd5 (also filed as iscgem721167). Read Tue, Sep 22, 2026, 3:33 PM UTC.