M5.1 earthquake 104 km ESE of Hihifo, Tonga
A magnitude 5.1 earthquake struck 104 km ESE of Hihifo, Tonga on Fri, Dec 22, 2017, 5:08 AM GMT+14 (15:08 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-12-21 15:08:46 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 16.307° S, 172.892° 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 3.0 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- Operator assigned
- Station coverage gap
- 72°
- Stations used
- 80
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.4Samoa Islands region · 3169 days ago · 10 km deep · 99 km away
- 4.479 km ESE of Hihifo, Tonga · 3167 days ago · 10 km deep · 26 km away
- 4.580 km ESE of Hihifo, Tonga · 3148 days ago · 35 km deep · 24 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000c130. Read Fri, Oct 2, 2026, 10:10 AM UTC.