M4.8 earthquake 10 km E of San Miguel, Philippines
A magnitude 4.8 earthquake struck 10 km E of San Miguel, Philippines on Tue, Aug 4, 1981, 7:23 AM GMT+8 (23:23 UTC), 97 km (60 mi) below the surface.
A larger quake followed: M5.0 15 km E of Tigao, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1981-08-03 23:23:56 UTC
- Depth
- 97.0 km (60.3 mi), intermediate-depth
- Epicenter
- 8.957° N, 126.036° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.74 km SE of Libas, Philippines · 16482 days ago · 57 km deep · 99 km away
- 5.015 km E of Tigao, Philippines · 16455 days ago · 68 km deep · 40 km away
- 5.058 km ENE of Aras-asan, Philippines · 16453 days ago · 54 km deep · 86 km away
- 4.916 km N of Cortes, Philippines · 16452 days ago · 73 km deep · 55 km away
- 4.514 km N of Punta, Philippines · 16439 days ago · 47 km deep · 80 km away
- 4.8Mindanao, Philippines · 16428 days ago · 33 km deep · 19 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001f3k. Read Tue, Sep 22, 2026, 9:39 AM UTC.