M5.3 earthquake 1 km N of Alegria, Philippines
A magnitude 5.3 earthquake struck 1 km N of Alegria, Philippines on Thu, Dec 29, 1977, 7:55 PM GMT+8 (11:55 UTC), 53 km (33 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.3 (mb), moderate
- Local time
- UTC
- 1977-12-29 11:55:35 UTC
- Depth
- 53.0 km (32.9 mi), shallow
- Epicenter
- 8.523° N, 126.009° 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.
- Stations used
- 57
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.3 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.62 km SSW of Talacogon, Philippines · 17798 days ago · 55 km deep · 27 km away
- 5.22 km SSW of Amaga, Philippines · 17797 days ago · 46 km deep · 6 km away
- 5.34 km WNW of Amaga, Philippines · 17797 days ago · 47 km deep · 4 km away
- 5.12 km W of Javier, Philippines · 17797 days ago · 63 km deep · 7 km away
- 5.04 km S of San Francisco, Philippines · 17791 days ago · 66 km deep · 7 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000s9e (also filed as iscgem689644). Read Tue, Sep 22, 2026, 10:29 AM UTC.