M4.6 earthquake 12 km NNE of Piddig, Philippines
A magnitude 4.6 earthquake struck 12 km NNE of Piddig, Philippines on Mon, Aug 6, 1973, 5:15 PM GMT+8 (09:15 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M5.2 Luzon, 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
- 1973-08-06 09:15:29 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 18.268° N, 120.764° 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
- 16
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 1 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 usp000030k. Read Tue, Sep 22, 2026, 4:08 PM UTC.