M4.5 earthquake 113 km NE of Neiafu, Tonga
A magnitude 4.5 earthquake struck 113 km NE of Neiafu, Tonga on Thu, May 6, 2021, 10:39 PM GMT-12 (10:39 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.1 103 km NNE 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
- 4.5 (mb), light
- Local time
- UTC
- 2021-05-07 10:39:06 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.832° S, 173.340° 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 11.1 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- Operator assigned
- Station coverage gap
- 159°
- Stations used
- 24
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.1103 km NNE of Neiafu, Tonga · 1969 days ago · 10 km deep · 44 km away · felt by 1
- 4.5138 km S of Hihifo, Tonga · 1918 days ago · 10 km deep · 78 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e2h6. Read Wed, Sep 30, 2026, 12:46 AM UTC.