M4.7 earthquake 100 km SSE of Hihifo, Tonga
A magnitude 4.7 earthquake struck 100 km SSE of Hihifo, Tonga on Mon, Dec 3, 2018, 10:05 AM GMT+14 (20:05 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M5.7 148 km S 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
- 4.7 (mb), light
- Local time
- UTC
- 2018-12-02 20:05:17 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 16.736° S, 173.309° 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 6.7 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- Operator assigned
- Station coverage gap
- 98°
- Stations used
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.375 km SSE of Hihifo, Tonga · 2852 days ago · 20 km deep · 30 km away
- 4.673 km ESE of Hihifo, Tonga · 2848 days ago · 35 km deep · 63 km away
- 4.292 km S of Hihifo, Tonga · 2834 days ago · 156 km deep · 57 km away
- 5.7148 km S of Hihifo, Tonga · 2832 days ago · 120 km deep · 96 km away · felt by 1
- 4.881 km ESE of Hihifo, Tonga · 2811 days ago · 35 km deep · 67 km away
- 4.596 km SSE of Hihifo, Tonga · 2804 days ago · 72 km deep · 6 km away
- 4.977 km E of Hihifo, Tonga · 2803 days ago · 10 km deep · 78 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000i0py. Read Sun, Sep 27, 2026, 11:33 PM UTC.