M4.4 earthquake 128 km NNW of Houma, Tonga
A magnitude 4.4 earthquake struck 128 km NNW of Houma, Tonga on Thu, Jul 27, 2023, 4:50 AM GMT+13 (15:50 UTC), 229 km (142 mi) below the surface.
A larger quake followed: M4.8 117 km WSW of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-07-26 15:50:05 UTC
- Depth
- 229.3 km (142.5 mi), intermediate-depth
- Epicenter
- 20.153° S, 175.892° 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 14.2 km horizontally, 7.6 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 67°
- Stations used
- 29
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
- 4.8117 km WSW of Pangai, Tonga · 1130 days ago · 150 km deep · 47 km away · felt by 1
- 4.6104 km N of Nuku‘alofa, Tonga · 1114 days ago · 160 km deep · 62 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000kxkh. Read Sun, Oct 4, 2026, 8:42 AM UTC.