M4.6 earthquake 188 km ESE of Hihifo, Tonga
A magnitude 4.6 earthquake struck 188 km ESE of Hihifo, Tonga on Tue, Jul 18, 2023, 1:44 PM GMT+13 (00:44 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.5 107 km ESE 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-07-18 00:44:40 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 16.854° S, 172.293° 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 7.3 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- Operator assigned
- Station coverage gap
- 65°
- Stations used
- 21
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 6 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.695 km ESE of Hihifo, Tonga · 1166 days ago · 25 km deep · 98 km away
- 5.5107 km ESE of Hihifo, Tonga · 1164 days ago · 10 km deep · 86 km away
- 4.3157 km ESE of Hihifo, Tonga · 1160 days ago · 10 km deep · 53 km away
- 4.6156 km SE of Hihifo, Tonga · 1138 days ago · 10 km deep · 61 km away
- 5.0196 km SE of Hihifo, Tonga · 1126 days ago · 10 km deep · 38 km away
- 4.9202 km ESE of Hihifo, Tonga · 1122 days ago · 10 km deep · 14 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000kvnu. Read Fri, Oct 2, 2026, 4:03 PM UTC.