M5.0 earthquake 97 km NNE of Hihifo, Tonga
A magnitude 5.0 earthquake struck 97 km NNE of Hihifo, Tonga on Thu, Sep 28, 2023, 2:43 PM GMT+13 (01:43 UTC), 16 km (10 mi) below the surface.
A larger quake followed: M5.5 65 km NW of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-09-28 01:43:33 UTC
- Depth
- 16.1 km (10.0 mi), shallow
- Epicenter
- 15.141° S, 173.458° W
- Region
- Tonga
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 8.1 km horizontally, 4.2 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 49°
- Stations used
- 150
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.0 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.90 km ENE of Hihifo, Tonga · 1097 days ago · 77 km deep · 97 km away
- 5.565 km NW of Hihifo, Tonga · 1088 days ago · 10 km deep · 93 km away
- 4.2125 km NNE of Hihifo, Tonga · 1082 days ago · 10 km deep · 31 km away
- 4.4119 km NNE of Hihifo, Tonga · 1082 days ago · 10 km deep · 30 km away
- 4.280 km NNW of Hihifo, Tonga · 1080 days ago · 61 km deep · 55 km away
- 4.3102 km NNE of Hihifo, Tonga · 1079 days ago · 10 km deep · 13 km away
- 4.6101 km NE of Hihifo, Tonga · 1049 days ago · 10 km deep · 50 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000lbaf. Read Fri, Oct 2, 2026, 5:16 PM UTC.