Philippines earthquakes

M5.5 earthquake 159 km SE of Pondaguitan, Philippines

A magnitude 5.5 earthquake struck 159 km SE of Pondaguitan, Philippines on Thu, Jul 31, 2003, 5:47 PM GMT+8 (09:47 UTC), 33 km (21 mi) below the surface.

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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: 5.5 (mwc), moderate
Local time: Thu, Jul 31, 2003, 5:47 PM GMT+8
UTC: 2003-07-31 09:47:20 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 5.183° N, 127.013° 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.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting: Reverse (thrust)
Nodal plane 1: Strike 151°, dip 10°, rake 83°
Nodal plane 2: Strike 338°, dip 80°, rake 91°

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED
Station coverage gap: 63°
Stations used: 81

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 4 in the 60 days after this one and 6 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000c3sp (also filed as gcmtb073103b, gcmt20030731094720, iscgem7012441). Read Wed, Sep 30, 2026, 10:45 AM UTC.