M4.5 earthquake 100 km SSW of Hihifo, Tonga
A magnitude 4.5 earthquake struck 100 km SSW of Hihifo, Tonga on Sun, Apr 30, 2023, 11:25 AM GMT-12 (23:25 UTC), 144 km (90 mi) below the surface.
A larger quake followed: M4.8 Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-04-30 23:25:00 UTC
- Depth
- 144.3 km (89.6 mi), intermediate-depth
- Epicenter
- 16.832° S, 174.040° 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 5.8 km horizontally, 7.8 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 112°
- Stations used
- 21
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.4Tonga · 1237 days ago · 178 km deep · 63 km away
- 4.2151 km SSE of Hihifo, Tonga · 1235 days ago · 35 km deep · 90 km away
- 4.077 km WSW of Hihifo, Tonga · 1227 days ago · 190 km deep · 71 km away
- 4.293 km WSW of Hihifo, Tonga · 1221 days ago · 175 km deep · 71 km away
- 4.1127 km N of Neiafu, Tonga · 1216 days ago · 120 km deep · 76 km away
- 4.8Tonga · 1211 days ago · 103 km deep · 11 km away
- 4.1146 km SSW of Hihifo, Tonga · 1210 days ago · 131 km deep · 48 km away
- 4.2133 km SSW of Hihifo, Tonga · 1204 days ago · 96 km deep · 35 km away
- 4.352 km SSW of Hihifo, Tonga · 1203 days ago · 62 km deep · 49 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000k9qp. Read Sat, Oct 3, 2026, 5:59 AM UTC.