M4.4 earthquake 90 km SW of Basco, Philippines
A magnitude 4.4 earthquake struck 90 km SW of Basco, Philippines on Sat, Apr 25, 1987, 4:19 PM GMT+8 (08:19 UTC), 49 km (30 mi) below the surface.
A larger quake followed: M6.3 63 km W of Basco, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 1987-04-25 08:19:15 UTC
- Depth
- 48.9 km (30.4 mi), shallow
- Epicenter
- 19.882° N, 121.347° 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.
- Depth from
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.3139 km WSW of Basco, Philippines · 14396 days ago · 41 km deep · 67 km away
- 6.363 km W of Basco, Philippines · 14354 days ago · 15 km deep · 61 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00034f4. Read Thu, Sep 24, 2026, 12:17 PM UTC.