Philippines earthquakes

M6.3 earthquake 77 km ESE of Mangili, Philippines

A magnitude 6.3 earthquake struck 77 km ESE of Mangili, Philippines on Sat, Feb 12, 1983, 4:47 PM GMT+8 (08:47 UTC), 51 km (32 mi) below the surface.

A larger quake followed: M6.4 78 km ESE of Caburan, Philippines. This one was a foreshock.

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Map

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

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The earthquake

Magnitude: 6.3 (mw), strong
Local time: Sat, Feb 12, 1983, 4:47 PM GMT+8
UTC: 1983-02-12 08:47:12 UTC
Depth: 51.0 km (31.7 mi), shallow
Epicenter: 5.669° N, 126.297° E
Region: Philippines
Strongest shaking: IV, light shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: IV, light shaking
Peak ground acceleration: 4.5% of gravity
Peak ground velocity: 1.3 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from: CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 26 in the 60 days after this one and 1 in the 30 days before it.

After

Before

4.752 km E of Sarangani, PhilippinesSun, Jan 23, 4:24 PM GMT+8 · 15949 days ago · 115 km deep · 49 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001sz9 (also filed as gcmtb021283a, gcmt19830212084710, iscgem582686). Read Tue, Sep 22, 2026, 8:59 PM UTC.