M5.4 earthquake 153 km NE of Neiafu, Tonga
A magnitude 5.4 earthquake struck 153 km NE of Neiafu, Tonga on Wed, Jul 29, 1981, 10:05 AM GMT-12 (22:05 UTC), 42 km (26 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mb), moderate
- Local time
- UTC
- 1981-07-29 22:05:11 UTC
- Depth
- 42.0 km (26.1 mi), shallow
- Epicenter
- 17.570° S, 173.081° W
- Region
- Tonga
- 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
- CONSTRAINED_BY_DEPTH_PHASES
Nearby
Within 100 km, magnitude 2.4 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001f0q (also filed as gcmtb072981b, gcmt19810729220511, iscgem624503). Read Sun, Sep 27, 2026, 7:45 PM UTC.