M4.9 earthquake 139 km SSW of Lotofag?, Samoa
A magnitude 4.9 earthquake struck 139 km SSW of Lotofag?, Samoa on Sun, Apr 5, 1981, 2:03 PM GMT-11 (01:03 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1981-04-06 01:03:13 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.108° S, 172.421° W
- Region
- Samoa
- 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 1.9 and up: 0 in the 60 days after this one and 2 in the 30 days before it.
Before
Earthquakes todaySamoa earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001d18. Read Thu, Sep 24, 2026, 5:31 AM UTC.