M4.2 earthquake 34 km NNW of Santa Monica, Philippines
A magnitude 4.2 earthquake struck 34 km NNW of Santa Monica, Philippines on Mon, Apr 21, 2003, 12:25 AM GMT+8 (16:25 UTC), 42 km (26 mi) below the surface.
A larger quake followed: M4.8 Leyte, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2003-04-20 16:25:20 UTC
- Depth
- 42.3 km (26.3 mi), shallow
- Epicenter
- 10.319° N, 125.950° E
- Region
- Philippines
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
no people dead or missing; no people injured; no buildings damaged or destroyed
From the USGS event page for usp000bvkx. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- CONSTRAINED_BY_DEPTH_PHASES
- Station coverage gap
- 137°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.8Leyte, Philippines · 8564 days ago · 100 km deep · 22 km away
- 4.012 km NNE of Sulangan, Philippines · 8562 days ago · 33 km deep · 82 km away
- 4.520 km N of Cortes, Philippines · 8559 days ago · 56 km deep · 99 km away
- 4.57 km SE of Union, Philippines · 8556 days ago · 33 km deep · 72 km away
- 4.712 km NNE of Adlay, Philippines · 8511 days ago · 112 km deep · 90 km away
Before
- 4.750 km NE of Santa Monica, Philippines · 8569 days ago · 39 km deep · 51 km away
- 4.2Mindanao, Philippines · 8574 days ago · 33 km deep · 95 km away
- 4.030 km E of Pilar, Philippines · 8578 days ago · 33 km deep · 66 km away
- 4.815 km ENE of Pilar, Philippines · 8578 days ago · 86 km deep · 53 km away
- 4.576 km ENE of Santa Monica, Philippines · 8590 days ago · 33 km deep · 78 km away
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000bvkx. Read Fri, Oct 2, 2026, 4:02 PM UTC.