M4.6 earthquake 44 km W of Hihifo, Tonga
A magnitude 4.6 earthquake struck 44 km W of Hihifo, Tonga on Sun, Oct 29, 2023, 9:59 AM GMT+13 (20:59 UTC), 146 km (91 mi) below the surface.
A larger quake followed: M5.0 104 km W 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
- 2023-10-28 20:59:53 UTC
- Depth
- 146.3 km (90.9 mi), intermediate-depth
- Epicenter
- 15.947° S, 174.211° 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 9.7 km horizontally, 4.7 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 66°
- Stations used
- 24
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 8 in the 30 days before it.
After
- 4.499 km NW of Hihifo, Tonga · 1053 days ago · 194 km deep · 67 km away
- 4.791 km WSW of Hihifo, Tonga · 1050 days ago · 10 km deep · 55 km away
- 4.287 km WNW of Hihifo, Tonga · 1050 days ago · 160 km deep · 47 km away
- 5.0104 km W of Hihifo, Tonga · 1045 days ago · 277 km deep · 60 km away
- 4.191 km WNW of Hihifo, Tonga · 1015 days ago · 176 km deep · 58 km away
Before
- 4.460 km SSE of Hihifo, Tonga · 1072 days ago · 35 km deep · 91 km away
- 4.280 km NNW of Hihifo, Tonga · 1081 days ago · 61 km deep · 82 km away
- 4.4106 km WNW of Hihifo, Tonga · 1085 days ago · 173 km deep · 69 km away
- 5.565 km NW of Hihifo, Tonga · 1090 days ago · 10 km deep · 46 km away
- 4.465 km SSW of Hihifo, Tonga · 1092 days ago · 81 km deep · 61 km away
- 4.392 km WNW of Hihifo, Tonga · 1093 days ago · 190 km deep · 57 km away
- 4.90 km ENE of Hihifo, Tonga · 1098 days ago · 77 km deep · 45 km away
- 4.637 km SW of Hihifo, Tonga · 1099 days ago · 112 km deep · 35 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000l8cm. Read Sat, Oct 3, 2026, 7:57 PM UTC.