M4.4 earthquake 202 km WSW of Hihifo, Tonga
A magnitude 4.4 earthquake struck 202 km WSW of Hihifo, Tonga on Tue, Aug 1, 2023, 3:06 PM GMT-12 (03:06 UTC), 238 km (148 mi) below the surface.
A larger quake followed: M4.5 186 km NW 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
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-08-02 03:06:22 UTC
- Depth
- 238.0 km (147.9 mi), intermediate-depth
- Epicenter
- 16.756° S, 175.504° 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 15.8 km horizontally, 12.2 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 133°
- Stations used
- 15
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.5186 km NW of Neiafu, Tonga · 1148 days ago · 275 km deep · 89 km away
- 4.1171 km SW of Hihifo, Tonga · 1146 days ago · 250 km deep · 92 km away
- 4.3214 km WSW of Hihifo, Tonga · 1142 days ago · 369 km deep · 38 km away
- 4.2169 km NW of Neiafu, Tonga · 1119 days ago · 260 km deep · 98 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000kza5. Read Sat, Oct 3, 2026, 12:32 AM UTC.