M4.3 earthquake 116 km SSW of Hihifo, Tonga
A magnitude 4.3 earthquake struck 116 km SSW of Hihifo, Tonga on Fri, Dec 8, 2017, 5:42 AM GMT-12 (17:42 UTC), 110 km (68 mi) below the surface.
A larger quake followed: M5.7 21 km SW 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-12-08 17:42:38 UTC
- Depth
- 110.0 km (68.3 mi), intermediate-depth
- Epicenter
- 16.921° S, 174.231° 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 10.3 km horizontally, 5.1 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 85°
- Stations used
- 16
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 5 in the 30 days before it.
After
- 5.721 km SW of Hihifo, Tonga · 3219 days ago · 155 km deep · 96 km away · felt by 1
- 4.6129 km S of Hihifo, Tonga · 3213 days ago · 90 km deep · 36 km away
- 4.648 km SSE of Hihifo, Tonga · 3212 days ago · 10 km deep · 88 km away
- 4.4138 km NNE of Neiafu, Tonga · 3209 days ago · 10 km deep · 93 km away
- 4.2150 km SSW of Hihifo, Tonga · 3206 days ago · 131 km deep · 43 km away
- 4.973 km SW of Hihifo, Tonga · 3184 days ago · 147 km deep · 55 km away
- 4.7160 km NNW of Neiafu, Tonga · 3165 days ago · 35 km deep · 46 km away
Before
- 4.4119 km SSW of Hihifo, Tonga · 3226 days ago · 106 km deep · 11 km away
- 4.970 km S of Hihifo, Tonga · 3231 days ago · 103 km deep · 53 km away
- 4.5117 km SSE of Hihifo, Tonga · 3239 days ago · 33 km deep · 77 km away
- 4.732 km SW of Hihifo, Tonga · 3242 days ago · 99 km deep · 87 km away
- 5.3146 km NNW of Neiafu, Tonga · 3243 days ago · 156 km deep · 78 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000c4g6. Read Fri, Oct 2, 2026, 12:18 AM UTC.