M4.5 earthquake 122 km WNW of Haveluloto, Tonga
A magnitude 4.5 earthquake struck 122 km WNW of Haveluloto, Tonga on Wed, Apr 4, 2018, 5:25 AM GMT+13 (16:25 UTC), 203 km (126 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-04-03 16:25:55 UTC
- Depth
- 202.6 km (125.9 mi), intermediate-depth
- Epicenter
- 20.761° S, 176.314° 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 11.6 km horizontally, 7.3 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 85°
- Stations used
- 50
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 2 in the 30 days before it.
After
- 4.6124 km W of Haveluloto, Tonga · 3104 days ago · 149 km deep · 66 km away
- 4.6196 km WNW of Haveluloto, Tonga · 3082 days ago · 304 km deep · 80 km away
- 4.341 km WSW of Haveluloto, Tonga · 3061 days ago · 78 km deep · 95 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000dy0v. Read Fri, Oct 2, 2026, 7:08 AM UTC.