M4.5 earthquake 25 km SSE of Hihifo, Tonga
A magnitude 4.5 earthquake struck 25 km SSE of Hihifo, Tonga on Mon, Dec 28, 2015, 2:26 PM GMT+14 (00:26 UTC), 115 km (71 mi) below the surface.
A larger quake followed: M5.1 39 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-12-28 00:26:10 UTC
- Depth
- 114.6 km (71.2 mi), intermediate-depth
- Epicenter
- 16.157° S, 173.675° 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 9.0 km horizontally, 5.7 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 56°
- Stations used
- 50
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.629 km WSW of Hihifo, Tonga · 3925 days ago · 133 km deep · 39 km away
- 5.139 km SW of Hihifo, Tonga · 3917 days ago · 140 km deep · 41 km away
- 4.569 km SW of Hihifo, Tonga · 3914 days ago · 154 km deep · 67 km away
- 4.7109 km E of Hihifo, Tonga · 3891 days ago · 10 km deep · 97 km away
- 4.8116 km SSE of Hihifo, Tonga · 3889 days ago · 44 km deep · 91 km away
- 4.864 km S of Hihifo, Tonga · 3888 days ago · 23 km deep · 43 km away
- 4.757 km SSW of Hihifo, Tonga · 3886 days ago · 35 km deep · 44 km away
- 4.397 km ESE of Hihifo, Tonga · 3884 days ago · 35 km deep · 77 km away
- 4.282 km ESE of Hihifo, Tonga · 3882 days ago · 35 km deep · 62 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10004a0h. Read Mon, Oct 5, 2026, 1:32 PM UTC.