M4.6 earthquake 37 km ENE of Pilar, Philippines
A magnitude 4.6 earthquake struck 37 km ENE of Pilar, Philippines on Wed, Sep 23, 1981, 12:49 AM GMT+8 (16:49 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.9 42 km E of Loreto, 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
- 1981-09-22 16:49:47 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 9.954° N, 126.433° 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 1.6 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 3.724 km NNW of Cortes, Philippines · 16416 days ago · 49 km deep · 60 km away
- 4.131 km N of Santa Monica, Philippines · 16413 days ago · 66 km deep · 58 km away
- 4.942 km E of Loreto, Philippines · 16404 days ago · 64 km deep · 72 km away
- 4.940 km NNE of Santa Monica, Philippines · 16401 days ago · 52 km deep · 56 km away
- 5.013 km S of Claver, Philippines · 16390 days ago · 33 km deep · 93 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001g1p. Read Tue, Sep 22, 2026, 3:35 PM UTC.