M4.2 earthquake 151 km SSE of Hihifo, Tonga
A magnitude 4.2 earthquake struck 151 km SSE of Hihifo, Tonga on Wed, May 17, 2023, 1:30 AM GMT-12 (13:30 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M5.0 61 km SE 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-05-17 13:30:46 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 17.237° S, 173.305° 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, 1.9 km in depth
- Magnitude uncertainty
- ±0.22
- Depth from
- Operator assigned
- Station coverage gap
- 112°
- Stations used
- 19
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.7202 km SE of Hihifo, Tonga · 1222 days ago · 10 km deep · 91 km away
- 4.1127 km N of Neiafu, Tonga · 1216 days ago · 120 km deep · 95 km away
- 4.8Tonga · 1211 days ago · 103 km deep · 80 km away
- 4.2133 km SSW of Hihifo, Tonga · 1204 days ago · 96 km deep · 100 km away
- 4.7Tonga · 1196 days ago · 36 km deep · 29 km away
- 5.061 km SE of Hihifo, Tonga · 1190 days ago · 55 km deep · 100 km away
- 5.0105 km NNE of Neiafu, Tonga · 1189 days ago · 46 km deep · 67 km away · felt by 2
- 4.6105 km SSE of Hihifo, Tonga · 1189 days ago · 82 km deep · 46 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000kdw9. Read Sat, Oct 3, 2026, 1:40 AM UTC.