M4.5 earthquake Tonga
A magnitude 4.5 earthquake struck in Tonga on Thu, Jul 20, 2023, 2:28 AM GMT+13 (13:28 UTC), 206 km (128 mi) below the surface.
A larger quake followed: M4.8 82 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-07-19 13:28:35 UTC
- Depth
- 205.6 km (127.8 mi), intermediate-depth
- Epicenter
- 15.481° S, 174.567° 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 12.9 km horizontally, 8.9 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 85°
- Stations used
- 16
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 9 in the 30 days before it.
After
- 4.2118 km WNW of Hihifo, Tonga · 1159 days ago · 177 km deep · 21 km away
- 4.581 km NNW of Hihifo, Tonga · 1151 days ago · 138 km deep · 67 km away
- 4.5113 km WNW of Hihifo, Tonga · 1151 days ago · 192 km deep · 16 km away
- 4.6Tonga · 1133 days ago · 67 km deep · 89 km away
- 4.488 km WNW of Hihifo, Tonga · 1128 days ago · 207 km deep · 13 km away
- 4.0159 km WNW of Hihifo, Tonga · 1117 days ago · 289 km deep · 62 km away
- 4.882 km NW of Hihifo, Tonga · 1113 days ago · 184 km deep · 16 km away
Before
- 4.1Tonga · 1172 days ago · 164 km deep · 4 km away
- 4.289 km WNW of Hihifo, Tonga · 1175 days ago · 138 km deep · 31 km away
- 4.4124 km NW of Hihifo, Tonga · 1176 days ago · 205 km deep · 43 km away
- 4.4101 km WNW of Hihifo, Tonga · 1177 days ago · 180 km deep · 6 km away
- 4.237 km SW of Hihifo, Tonga · 1178 days ago · 110 km deep · 99 km away
- 4.3106 km WNW of Hihifo, Tonga · 1179 days ago · 285 km deep · 27 km away
- 4.277 km N of Hihifo, Tonga · 1184 days ago · 35 km deep · 80 km away
- 4.259 km NNW of Hihifo, Tonga · 1188 days ago · 171 km deep · 51 km away
- 4.8103 km NNW of Hihifo, Tonga · 1194 days ago · 171 km deep · 47 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000kvx6. Read Sat, Oct 3, 2026, 3:28 AM UTC.