M4.1 earthquake 200 km WSW of Haveluloto, Tonga
A magnitude 4.1 earthquake struck 200 km WSW of Haveluloto, Tonga on Sat, Dec 15, 2018, 9:14 PM GMT+13 (08:14 UTC), 275 km (171 mi) below the surface.
A larger quake followed: M4.4 236 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
- 4.1 (mb), light
- Local time
- UTC
- 2018-12-15 08:14:38 UTC
- Depth
- 274.9 km (170.8 mi), intermediate-depth
- Epicenter
- 21.626° S, 177.082° 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 13.8 km horizontally, 15.0 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 102°
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 2 in the 30 days before it.
After
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000ivee. Read Tue, Sep 29, 2026, 11:14 PM UTC.