M5.1 earthquake 8 km E of Calbiga, Philippines
A magnitude 5.1 earthquake struck 8 km E of Calbiga, Philippines on Sun, Sep 23, 1973, 8:32 AM GMT+8 (00:32 UTC), 99 km (62 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb), moderate
- Local time
- UTC
- 1973-09-23 00:32:17 UTC
- Depth
- 99.0 km (61.5 mi), intermediate-depth
- Epicenter
- 11.626° N, 125.092° 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
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00003ha. Read Tue, Sep 22, 2026, 8:03 AM UTC.