M4.7 earthquake 59 km N of Namuac, Philippines
A magnitude 4.7 earthquake struck 59 km N of Namuac, Philippines on Sat, Sep 15, 1973, 10:44 AM GMT+8 (02:44 UTC), 58 km (36 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
- 4.7 (mb), light
- Local time
- UTC
- 1973-09-15 02:44:24 UTC
- Depth
- 58.0 km (36.0 mi), shallow
- Epicenter
- 19.139° N, 121.253° 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
- 27
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.2Luzon, Philippines · 19359 days ago · 20 km deep · 72 km away
- 4.772 km N of Claveria, Philippines · 19357 days ago · 35 km deep · 30 km away
- 4.764 km N of Claveria, Philippines · 19321 days ago · 50 km deep · 22 km away
- 4.464 km N of Namuac, Philippines · 19311 days ago · 61 km deep · 6 km away
- 4.576 km N of Pagudpud, Philippines · 19309 days ago · 67 km deep · 56 km away
- 4.678 km N of Pagudpud, Philippines · 19309 days ago · 68 km deep · 59 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00003ee. Read Wed, Sep 23, 2026, 12:52 AM UTC.