M4.5 earthquake 122 km ESE of Neiafu, Tonga
A magnitude 4.5 earthquake struck 122 km ESE of Neiafu, Tonga on Sat, Dec 15, 2018, 8:15 PM GMT+13 (07:15 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 108 km ENE 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), light
- Local time
- UTC
- 2018-12-15 07:15:36 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 19.122° S, 172.936° 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 9.7 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.19
- Depth from
- Operator assigned
- Station coverage gap
- 78°
- Stations used
- 20
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 2 in the 30 days before it.
After
- 4.894 km E of Neiafu, Tonga · 2824 days ago · 10 km deep · 58 km away
- 4.9108 km ENE of Pangai, Tonga · 2819 days ago · 10 km deep · 64 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000itsv. Read Mon, Sep 28, 2026, 3:22 AM UTC.