Philippines earthquakes

M5.5 earthquake 139 km SE of Pondaguitan, Philippines

A magnitude 5.5 earthquake struck 139 km SE of Pondaguitan, Philippines on Sat, Dec 9, 1972, 4:17 AM GMT+8 (20:17 UTC), 46 km (28 mi) below the surface.

A larger quake followed: M5.9 131 km SE of Pondaguitan, Philippines. This one was a foreshock.

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The earthquake

Magnitude: 5.5 (mw), moderate
Local time: Sat, Dec 9, 1972, 4:17 AM GMT+8
UTC: 1972-12-08 20:17:13 UTC
Depth: 45.7 km (28.4 mi), shallow
Epicenter: 5.590° N, 127.171° 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.

Magnitude uncertainty: ±0.66
Depth from: From location

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 11 in the 60 days after this one and 7 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem765877 (also filed as iscgemsup765877). Read Tue, Sep 29, 2026, 11:22 PM UTC.