M4.1 earthquake Tonga region
A magnitude 4.1 earthquake struck in the Tonga region on Sun, Aug 7, 2022, 12:36 AM GMT+13 (11:36 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M4.6 131 km SSE 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
- 2022-08-06 11:36:38 UTC
- Depth
- 19.2 km (11.9 mi), shallow
- Epicenter
- 22.702° S, 175.297° 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 10.7 km horizontally, 4.2 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- From location
- Station coverage gap
- 121°
- 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: 2 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.5160 km SSW of ‘Ohonua, Tonga · 1516 days ago · 10 km deep · 19 km away
- 4.6131 km SSE of ‘Ohonua, Tonga · 1465 days ago · 10 km deep · 68 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000ibbt. Read Fri, Oct 2, 2026, 11:17 AM UTC.