M4.4 earthquake 173 km ESE of Neiafu, Tonga
A magnitude 4.4 earthquake struck 173 km ESE of Neiafu, Tonga on Tue, May 18, 2021, 10:48 PM GMT+13 (09:48 UTC), 10 km (6 mi) below the surface.
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
- 2021-05-18 09:48:36 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 19.462° S, 172.569° 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 13.6 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.24
- Depth from
- Operator assigned
- Station coverage gap
- 157°
- Stations used
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e5tn. Read Tue, Sep 29, 2026, 6:13 PM UTC.