M4.4 earthquake 137 km WNW of Neiafu, Tonga
A magnitude 4.4 earthquake struck 137 km WNW of Neiafu, Tonga on Tue, Jul 6, 2021, 8:57 PM GMT+13 (07:57 UTC), 188 km (117 mi) below the surface.
A larger quake followed: M4.6 138 km W of Neiafu, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 2021-07-06 07:57:42 UTC
- Depth
- 187.7 km (116.7 mi), intermediate-depth
- Epicenter
- 18.164° S, 175.180° 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.
- Location uncertainty
- About 15.2 km horizontally, 10.1 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 142°
- Stations used
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 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 us7000ej1w. Read Wed, Sep 30, 2026, 1:50 AM UTC.