M4.3 earthquake 137 km W of Haveluloto, Tonga
A magnitude 4.3 earthquake struck 137 km W of Haveluloto, Tonga on Thu, May 13, 2021, 8:50 PM GMT+13 (07:50 UTC), 437 km (272 mi) below the surface.
A larger quake followed: M5.1 215 km WSW of Haveluloto, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 2021-05-13 07:50:18 UTC
- Depth
- 437.4 km (271.8 mi), deep
- Epicenter
- 21.288° S, 176.533° 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 22.3 km horizontally, 11.2 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- From location
- Station coverage gap
- 178°
- Stations used
- 12
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
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
- 5.1215 km WSW of Haveluloto, Tonga · 1963 days ago · 238 km deep · 81 km away
- 4.3Fiji region · 1915 days ago · 246 km deep · 78 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e4gz. Read Wed, Sep 30, 2026, 4:07 PM UTC.