M4.3 earthquake 28 km NE of Pilar, Philippines
A magnitude 4.3 earthquake struck 28 km NE of Pilar, Philippines on Sat, Apr 11, 1981, 10:52 AM GMT+8 (02:52 UTC), 57 km (35 mi) below the surface.
A larger quake followed: M4.9 35 km ENE of Santa Monica, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1981-04-11 02:52:30 UTC
- Depth
- 56.9 km (35.4 mi), shallow
- Epicenter
- 10.020° N, 126.303° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.837 km NE of Loreto, Philippines · 16600 days ago · 70 km deep · 77 km away
- 4.813 km NNE of Gigaquit, Philippines · 16580 days ago · 118 km deep · 71 km away
- 4.721 km SSW of Sulangan, Philippines · 16564 days ago · 74 km deep · 100 km away
- 4.935 km ENE of Santa Monica, Philippines · 16548 days ago · 55 km deep · 10 km away
- 4.934 km ENE of Santa Monica, Philippines · 16548 days ago · 53 km deep · 10 km away
Before
- 5.030 km ENE of Pilar, Philippines · 16603 days ago · 50 km deep · 7 km away
- 5.217 km E of Pilar, Philippines · 16603 days ago · 56 km deep · 18 km away
- 4.711 km ESE of Union, Philippines · 16603 days ago · 33 km deep · 33 km away
- 5.015 km NE of Pilar, Philippines · 16607 days ago · 58 km deep · 13 km away
- 5.110 km E of Talisay, Philippines · 16611 days ago · 73 km deep · 68 km away
- 4.226 km ENE of Loreto, Philippines · 16613 days ago · 65 km deep · 73 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001d37. Read Thu, Sep 24, 2026, 12:43 PM UTC.