M5.1 earthquake 263 km SSE of Isangel, Vanuatu
A magnitude 5.1 earthquake struck 263 km SSE of Isangel, Vanuatu on Tue, Apr 28, 1981, 11:31 PM GMT+11 (12:31 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
- 5.1 (mb), moderate
- Local time
- UTC
- 1981-04-28 12:31:14 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 21.610° S, 170.539° E
- Region
- Vanuatu
- 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
Nearby
Within 100 km, magnitude 2.1 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayVanuatu earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001dee. Read Tue, Sep 22, 2026, 2:16 PM UTC.