M4.6 earthquake 58 km NW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 58 km NW of Neiafu, Tonga on Thu, Mar 25, 2021, 10:35 PM GMT+13 (09:35 UTC), 79 km (49 mi) below the surface.
A larger quake followed: M4.9 58 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
- 4.6 (mb), light
- Local time
- UTC
- 2021-03-25 09:35:20 UTC
- Depth
- 78.6 km (48.9 mi), intermediate-depth
- Epicenter
- 18.358° S, 174.443° 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 13.5 km horizontally, 8.3 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 138°
- Stations used
- 35
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.958 km W of Neiafu, Tonga · 1995 days ago · 83 km deep · 32 km away
- 4.6119 km WNW of Neiafu, Tonga · 1986 days ago · 154 km deep · 66 km away
- 4.857 km N of Neiafu, Tonga · 1982 days ago · 10 km deep · 58 km away
- 4.674 km NW of Neiafu, Tonga · 1957 days ago · 80 km deep · 29 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000dy6k. Read Wed, Sep 30, 2026, 3:52 AM UTC.