M4.1 earthquake 110 km SW of Houma, Tonga
A magnitude 4.1 earthquake struck 110 km SW of Houma, Tonga on Sun, Jul 16, 2023, 7:06 PM GMT+13 (06:06 UTC), 218 km (135 mi) below the surface.
A larger quake followed: M4.8 102 km SSW of ‘Ohonua, 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-07-16 06:06:51 UTC
- Depth
- 217.6 km (135.2 mi), intermediate-depth
- Epicenter
- 21.863° S, 176.067° 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 11.8 km horizontally, 8.9 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 114°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.362 km SW of Houma, Tonga · 1146 days ago · 92 km deep · 48 km away
- 4.8102 km SSW of ‘Ohonua, Tonga · 1131 days ago · 41 km deep · 94 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000khzd. Read Sun, Oct 4, 2026, 8:39 PM UTC.