M4.8 earthquake 102 km SSW of ‘Ohonua, Tonga
A magnitude 4.8 earthquake struck 102 km SSW of ‘Ohonua, Tonga on Thu, Aug 31, 2023, 1:11 AM GMT+13 (12:11 UTC), 41 km (26 mi) below the surface.
A larger quake followed: M4.9 146 km S 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
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-08-30 12:11:38 UTC
- Depth
- 41.2 km (25.6 mi), shallow
- Epicenter
- 22.224° S, 175.246° 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 9.8 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 125°
- Stations used
- 40
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.7152 km S of ‘Ohonua, Tonga · 1119 days ago · 10 km deep · 61 km away
- 4.6193 km S of ‘Ohonua, Tonga · 1116 days ago · 10 km deep · 96 km away
- 4.6165 km S of ‘Ohonua, Tonga · 1098 days ago · 10 km deep · 82 km away
- 4.9146 km S of ‘Ohonua, Tonga · 1096 days ago · 10 km deep · 48 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000ks1x. Read Sun, Oct 4, 2026, 3:00 AM UTC.