M4.7 earthquake 11 km ESE of Union, Philippines
A magnitude 4.7 earthquake struck 11 km ESE of Union, Philippines on Sat, Apr 11, 1981, 12:11 AM GMT+8 (16:11 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 17 km E of Pilar, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1981-04-10 16:11:15 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 9.733° N, 126.211° 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 1.7 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.217 km E of Pilar, Philippines · 16600 days ago · 56 km deep · 16 km away
- 5.030 km ENE of Pilar, Philippines · 16600 days ago · 50 km deep · 31 km away
- 4.328 km NE of Pilar, Philippines · 16600 days ago · 57 km deep · 33 km away
- 4.837 km NE of Loreto, Philippines · 16597 days ago · 70 km deep · 100 km away
- 4.617 km ENE of Bacolod, Philippines · 16584 days ago · 77 km deep · 86 km away
- 4.813 km NNE of Gigaquit, Philippines · 16577 days ago · 118 km deep · 52 km away
- 4.935 km ENE of Santa Monica, Philippines · 16545 days ago · 55 km deep · 43 km away
- 4.934 km ENE of Santa Monica, Philippines · 16545 days ago · 53 km deep · 43 km away
Before
- 5.152 km ENE of Aras-asan, Philippines · 16601 days ago · 30 km deep · 94 km away
- 5.015 km NE of Pilar, Philippines · 16604 days ago · 58 km deep · 26 km away
- 5.110 km E of Talisay, Philippines · 16608 days ago · 73 km deep · 56 km away
- 4.226 km ENE of Loreto, Philippines · 16610 days ago · 65 km deep · 91 km away
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001d2x. Read Mon, Sep 21, 2026, 2:56 PM UTC.