M4.5 earthquake 87 km N of Claveria, Philippines
A magnitude 4.5 earthquake struck 87 km N of Claveria, Philippines on Sat, Apr 11, 1981, 11:17 AM GMT+8 (03:17 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.1 52 km SSW of Basco, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1981-04-11 03:17:58 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 19.398° N, 121.053° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.152 km SSW of Basco, Philippines · 16598 days ago · 56 km deep · 100 km away
- 4.766 km N of Namuac, Philippines · 16597 days ago · 43 km deep · 27 km away
- 4.797 km SW of Basco, Philippines · 16576 days ago · 33 km deep · 59 km away
- 5.172 km N of Claveria, Philippines · 16546 days ago · 36 km deep · 16 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001d38. Read Tue, Sep 22, 2026, 1:56 PM UTC.