M4.9 earthquake 34 km ENE of Santa Monica, Philippines
A magnitude 4.9 earthquake struck 34 km ENE of Santa Monica, Philippines on Thu, Jun 4, 1981, 10:33 PM GMT+8 (14:33 UTC), 53 km (33 mi) below the surface.
A larger quake followed: M5.1 18 km NNW of Cortes, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1981-06-04 14:33:04 UTC
- Depth
- 53.4 km (33.2 mi), shallow
- Epicenter
- 10.097° N, 126.346° 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 1.9 and up: 1 in the 60 days after this one and 2 in the 30 days before it.
After
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001e0f. Read Tue, Sep 22, 2026, 8:46 PM UTC.