M5.7 earthquake 54 km N of Namuac, Philippines
A magnitude 5.7 earthquake struck 54 km N of Namuac, Philippines on Mon, Jun 25, 1973, 3:19 PM GMT+8 (07:19 UTC), 50 km (31 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mb), moderate
- Local time
- UTC
- 1973-06-25 07:19:46 UTC
- Depth
- 50.0 km (31.1 mi), shallow
- Epicenter
- 19.105° N, 121.153° E
- Region
- Philippines
- Strongest shaking
- IV, light shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Peak ground acceleration
- 4.7% of gravity
- Peak ground velocity
- 0.8 cm/s
- Map
- Automatic

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
- 108
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.7100 km SW of Basco, Philippines · 19448 days ago · 33 km deep · 81 km away
- 3.9141 km N of Pagudpud, Philippines · 19421 days ago · 70 km deep · 94 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00002cx (also filed as iscgem759858). Read Tue, Sep 22, 2026, 7:46 PM UTC.