M4.8 earthquake 145 km NNW of Houma, Tonga
A magnitude 4.8 earthquake struck 145 km NNW of Houma, Tonga on Wed, Aug 6, 2025, 3:57 AM GMT+13 (14:57 UTC), 171 km (106 mi) below the surface.
A larger quake followed: M5.0 54 km NNW 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
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2025-08-05 14:57:03 UTC
- Depth
- 171.2 km (106.4 mi), intermediate-depth
- Epicenter
- 20.003° S, 175.940° 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 13.4 km horizontally, 7.7 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 98°
- Stations used
- 46
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.054 km NNW of Houma, Tonga · 419 days ago · 10 km deep · 92 km away · felt by 2
- 4.3113 km W of Pangai, Tonga · 397 days ago · 125 km deep · 54 km away
- 4.4151 km W of Pangai, Tonga · 370 days ago · 180 km deep · 23 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000qych. Read Sat, Oct 3, 2026, 8:23 PM UTC.