M4.2 earthquake 80 km NNW of Hihifo, Tonga
A magnitude 4.2 earthquake struck 80 km NNW of Hihifo, Tonga on Thu, Oct 19, 2023, 10:30 AM GMT+13 (21:30 UTC), 61 km (38 mi) below the surface.
A larger quake followed: M5.5 104 km NE 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-10-18 21:30:20 UTC
- Depth
- 61.1 km (38.0 mi), shallow
- Epicenter
- 15.248° S, 173.957° 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 8.8 km horizontally, 7.0 km in depth
- Magnitude uncertainty
- ±0.19
- Depth from
- From location
- Station coverage gap
- 63°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 7 in the 30 days before it.
After
- 4.3102 km NNE of Hihifo, Tonga · 1080 days ago · 10 km deep · 49 km away
- 4.644 km W of Hihifo, Tonga · 1070 days ago · 146 km deep · 82 km away
- 4.499 km NW of Hihifo, Tonga · 1052 days ago · 194 km deep · 69 km away
- 4.287 km WNW of Hihifo, Tonga · 1049 days ago · 160 km deep · 81 km away
- 4.6101 km NE of Hihifo, Tonga · 1049 days ago · 10 km deep · 97 km away
- 4.7104 km NE of Hihifo, Tonga · 1032 days ago · 23 km deep · 87 km away
- 4.5104 km NNE of Hihifo, Tonga · 1030 days ago · 10 km deep · 60 km away
- 4.679 km NNE of Hihifo, Tonga · 1029 days ago · 92 km deep · 59 km away
- 5.0107 km NNE of Hihifo, Tonga · 1026 days ago · 10 km deep · 77 km away · felt by 1
- 5.5104 km NE of Hihifo, Tonga · 1026 days ago · 10 km deep · 76 km away · felt by 2
Before
- 4.4119 km NNE of Hihifo, Tonga · 1082 days ago · 10 km deep · 57 km away
- 4.2125 km NNE of Hihifo, Tonga · 1082 days ago · 10 km deep · 67 km away
- 4.4106 km WNW of Hihifo, Tonga · 1084 days ago · 173 km deep · 84 km away
- 5.565 km NW of Hihifo, Tonga · 1089 days ago · 10 km deep · 42 km away
- 4.392 km WNW of Hihifo, Tonga · 1092 days ago · 190 km deep · 72 km away
- 4.90 km ENE of Hihifo, Tonga · 1097 days ago · 77 km deep · 80 km away
- 5.097 km NNE of Hihifo, Tonga · 1101 days ago · 16 km deep · 55 km away · felt by 1
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000lhip. Read Fri, Oct 2, 2026, 9:40 PM UTC.