M4.5 earthquake 24 km NW of Pangai, Tonga
A magnitude 4.5 earthquake struck 24 km NW of Pangai, Tonga on Mon, Dec 25, 2017, 4:20 AM GMT+13 (15:20 UTC), 81 km (51 mi) below the surface.
A larger quake followed: M4.6 118 km WNW 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-12-24 15:20:17 UTC
- Depth
- 81.3 km (50.5 mi), intermediate-depth
- Epicenter
- 19.675° S, 174.530° 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 13.7 km horizontally, 14.2 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 190°, poorly surrounded by stations
- Stations used
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.5Tonga · 3186 days ago · 101 km deep · 19 km away
- 4.6118 km WNW of Pangai, Tonga · 3160 days ago · 139 km deep · 96 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000c2jx. Read Thu, Oct 1, 2026, 10:32 AM UTC.