M4.1 earthquake 294 km SW of Haveluloto, Tonga
A magnitude 4.1 earthquake struck 294 km SW of Haveluloto, Tonga on Sun, May 20, 2018, 11:06 AM GMT+13 (22:06 UTC), 252 km (157 mi) below the surface.
A larger quake followed: M4.4 south of the Fiji Islands. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-05-19 22:06:46 UTC
- Depth
- 252.1 km (156.6 mi), intermediate-depth
- Epicenter
- 22.752° S, 177.485° 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 12.7 km horizontally, 5.5 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 116°
- Stations used
- 19
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 us1000eaji. Read Sat, Oct 3, 2026, 3:16 PM UTC.