M4.9 earthquake 112 km NE of Hihifo, Tonga
A magnitude 4.9 earthquake struck 112 km NE of Hihifo, Tonga on Tue, Dec 12, 2017, 5:50 PM GMT+14 (03:50 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.5 113 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
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-12-12 03:50:27 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.297° S, 172.993° 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 6.1 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 99°
- Stations used
- 67
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 12 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.6111 km NE of Hihifo, Tonga · 3216 days ago · 10 km deep · 21 km away
- 4.9110 km NNE of Hihifo, Tonga · 3212 days ago · 10 km deep · 39 km away
- 4.7103 km NNE of Hihifo, Tonga · 3208 days ago · 10 km deep · 58 km away
- 5.5113 km NE of Hihifo, Tonga · 3204 days ago · 38 km deep · 10 km away
- 4.5126 km NE of Hihifo, Tonga · 3202 days ago · 35 km deep · 28 km away
- 4.541 km NE of Hihifo, Tonga · 3183 days ago · 35 km deep · 73 km away
- 5.1146 km SSW of Gataivai, Samoa · 3179 days ago · 10 km deep · 38 km away
- 4.7103 km NNE of Hihifo, Tonga · 3179 days ago · 10 km deep · 61 km away
- 4.8100 km NE of Hihifo, Tonga · 3178 days ago · 38 km deep · 23 km away
- 4.4115 km NE of Hihifo, Tonga · 3177 days ago · 10 km deep · 22 km away
- 4.4Samoa Islands region · 3169 days ago · 10 km deep · 38 km away
- 5.1103 km NE of Hihifo, Tonga · 3156 days ago · 10 km deep · 10 km away
Before
- 4.997 km NE of Hihifo, Tonga · 3218 days ago · 11 km deep · 27 km away
- 5.382 km NNE of Hihifo, Tonga · 3220 days ago · 10 km deep · 51 km away · felt by 1
- 4.560 km N of Hihifo, Tonga · 3222 days ago · 52 km deep · 88 km away
- 4.6107 km NNE of Hihifo, Tonga · 3228 days ago · 10 km deep · 68 km away
- 4.9164 km SSW of Matavai, Samoa · 3233 days ago · 21 km deep · 97 km away
- 4.9102 km NNE of Hihifo, Tonga · 3245 days ago · 17 km deep · 49 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000c372. Read Fri, Oct 2, 2026, 9:59 AM UTC.