M4.3 earthquake 137 km SSW of Hihifo, Tonga
A magnitude 4.3 earthquake struck 137 km SSW of Hihifo, Tonga on Sun, Sep 24, 2023, 10:20 PM GMT-12 (10:20 UTC), 197 km (122 mi) below the surface.
A larger quake followed: M5.6 123 km N of Neiafu, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-09-25 10:20:29 UTC
- Depth
- 197.1 km (122.5 mi), intermediate-depth
- Epicenter
- 17.020° S, 174.462° 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 7.0 km horizontally, 6.3 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 59°
- Stations used
- 44
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.3151 km NW of Neiafu, Tonga · 1099 days ago · 220 km deep · 97 km away
- 4.465 km SSW of Hihifo, Tonga · 1091 days ago · 81 km deep · 73 km away
- 5.6123 km N of Neiafu, Tonga · 1072 days ago · 35 km deep · 95 km away
- 4.791 km WSW of Hihifo, Tonga · 1049 days ago · 10 km deep · 82 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000lbpt. Read Sat, Oct 3, 2026, 2:17 AM UTC.