M4.0 earthquake 290 km WSW of Houma, Tonga
A magnitude 4.0 earthquake struck 290 km WSW of Houma, Tonga on Mon, Apr 6, 2026, 12:04 PM GMT+13 (23:04 UTC), 317 km (197 mi) below the surface.
A larger quake followed: M4.7 250 km SW of Houma, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2026-04-05 23:04:31 UTC
- Depth
- 316.9 km (196.9 mi), deep
- Epicenter
- 22.221° S, 177.880° 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 11.0 km horizontally, 8.2 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 166°
- 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: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.4south of the Fiji Islands · 167 days ago · 366 km deep · 23 km away
- 4.2south of the Fiji Islands · 163 days ago · 379 km deep · 28 km away
- 4.7250 km SW of Houma, Tonga · 132 days ago · 203 km deep · 93 km away
- 4.4south of the Fiji Islands · 122 days ago · 393 km deep · 47 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000sqe2. Read Sat, Oct 3, 2026, 2:56 PM UTC.