M4.6 earthquake 17 km SSE of Neiafu, Tonga
A magnitude 4.6 earthquake struck 17 km SSE of Neiafu, Tonga on Fri, Mar 5, 2021, 4:42 AM GMT+13 (15:42 UTC), 44 km (27 mi) below the surface.
A larger quake followed: M5.1 96 km ENE 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
- 2021-03-04 15:42:32 UTC
- Depth
- 43.7 km (27.2 mi), shallow
- Epicenter
- 18.797° S, 173.911° 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 9.3 km horizontally, 5.9 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 77°
- Stations used
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.683 km ENE of Neiafu, Tonga · 2019 days ago · 10 km deep · 85 km away
- 4.895 km ENE of Pangai, Tonga · 2017 days ago · 10 km deep · 96 km away
- 4.658 km NW of Neiafu, Tonga · 2015 days ago · 79 km deep · 74 km away
- 4.958 km W of Neiafu, Tonga · 1995 days ago · 83 km deep · 68 km away
- 4.857 km N of Neiafu, Tonga · 1982 days ago · 10 km deep · 74 km away
- 5.196 km ENE of Neiafu, Tonga · 1976 days ago · 10 km deep · 99 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000dhq9. Read Wed, Sep 30, 2026, 7:26 AM UTC.