M4.6 earthquake 88 km ENE of Anito, Philippines
A magnitude 4.6 earthquake struck 88 km ENE of Anito, Philippines on Thu, Mar 17, 1977, 9:40 PM GMT+8 (13:40 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.3 92 km E of San Policarpo, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1977-03-17 13:40:02 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 12.881° N, 125.977° 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
- Stations used
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000myh. Read Tue, Sep 22, 2026, 10:20 AM UTC.