M4.3 earthquake 83 km WSW of Haveluloto, Tonga
A magnitude 4.3 earthquake struck 83 km WSW of Haveluloto, Tonga on Sun, Mar 18, 2018, 8:09 PM GMT+13 (07:09 UTC), 87 km (54 mi) below the surface.
A larger quake followed: M4.6 124 km W 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-18 07:09:56 UTC
- Depth
- 86.7 km (53.9 mi), intermediate-depth
- Epicenter
- 21.352° S, 175.987° 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 15.8 km horizontally, 12.1 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 111°
- Stations used
- 20
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d83a. Read Fri, Oct 2, 2026, 1:01 PM UTC.