M5.7 earthquake 163 km NE of Neiafu, Tonga
A magnitude 5.7 earthquake struck 163 km NE of Neiafu, Tonga on Sat, Jul 24, 1971, 12:49 AM GMT-12 (12:49 UTC), 15 km (9 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mw), moderate
- Local time
- UTC
- 1971-07-24 12:49:10 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 17.720° S, 172.782° 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.
- Magnitude uncertainty
- ±0.28
- Depth from
- From location
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 2 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem782623. Read Tue, Sep 22, 2026, 5:18 AM UTC.