M4.1 earthquake 145 km WSW of Basco, Philippines
A magnitude 4.1 earthquake struck 145 km WSW of Basco, Philippines on Sat, Apr 17, 1982, 8:10 PM GMT+8 (12:10 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.4 139 km WSW 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
- 4.1 (mb), light
- Local time
- UTC
- 1982-04-17 12:10:02 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 19.910° N, 120.704° 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
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4139 km WSW of Basco, Philippines · 16228 days ago · 33 km deep · 7 km away
- 4.9148 km NNW of Pagudpud, Philippines · 16228 days ago · 33 km deep · 34 km away
- 5.4145 km N of Pagudpud, Philippines · 16228 days ago · 33 km deep · 13 km away
- 4.4141 km N of Pagudpud, Philippines · 16228 days ago · 33 km deep · 14 km away
- 4.4137 km N of Pagudpud, Philippines · 16227 days ago · 33 km deep · 22 km away
- 5.8149 km N of Pagudpud, Philippines · 16226 days ago · 2 km deep · 20 km away
- 4.1136 km N of Pagudpud, Philippines · 16225 days ago · 33 km deep · 13 km away
- 4.782 km WSW of Basco, Philippines · 16214 days ago · 44 km deep · 63 km away
- 4.9149 km N of Pagudpud, Philippines · 16206 days ago · 26 km deep · 6 km away
- 4.154 km NNW of Claveria, Philippines · 16200 days ago · 33 km deep · 96 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ksq (also filed as iscgemsup600789). Read Mon, Sep 21, 2026, 3:59 PM UTC.