M4.2 earthquake 80 km W of Pangai, Tonga
A magnitude 4.2 earthquake struck 80 km W of Pangai, Tonga on Thu, Jan 8, 2015, 8:07 AM GMT+13 (19:07 UTC), 137 km (85 mi) below the surface.
A larger quake followed: M4.9 32 km NNW of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-01-07 19:07:54 UTC
- Depth
- 137.3 km (85.3 mi), intermediate-depth
- Epicenter
- 19.756° S, 175.124° 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 15.7 km horizontally, 10.9 km in depth
- Magnitude uncertainty
- ±0.22
- Depth from
- FROM_LOCATION
- Station coverage gap
- 103°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.4149 km NW of Pangai, Tonga · 4280 days ago · 205 km deep · 92 km away
- 4.932 km NNW of Pangai, Tonga · 4274 days ago · 10 km deep · 71 km away
- 4.3131 km NNW of Nuku‘alofa, Tonga · 4261 days ago · 281 km deep · 92 km away
- 4.3115 km NW of Pangai, Tonga · 4256 days ago · 187 km deep · 65 km away
- 4.4123 km W of Pangai, Tonga · 4253 days ago · 265 km deep · 45 km away
- 4.7151 km WNW of Pangai, Tonga · 4249 days ago · 164 km deep · 75 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usc000thfn. Read Mon, Oct 5, 2026, 1:49 AM UTC.