M4.8 earthquake 235 km S of ‘Ohonua, Tonga
A magnitude 4.8 earthquake struck 235 km S of ‘Ohonua, Tonga on Sat, Sep 30, 2023, 11:08 PM GMT+13 (10:08 UTC), 10 km (6 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
- 2023-09-30 10:08:02 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 23.460° S, 174.797° 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 7.6 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- Operator assigned
- Station coverage gap
- 158°
- Stations used
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.6165 km S of ‘Ohonua, Tonga · 1099 days ago · 10 km deep · 70 km away
- 4.9146 km S of ‘Ohonua, Tonga · 1096 days ago · 10 km deep · 97 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000lbwh. Read Sun, Oct 4, 2026, 2:15 PM UTC.