M4.6 earthquake 120 km WNW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 120 km WNW of Neiafu, Tonga on Fri, Dec 20, 2019, 6:24 AM GMT+13 (17:24 UTC), 139 km (86 mi) below the surface.
A larger quake followed: M4.9 128 km NW of Neiafu, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-12-19 17:24:06 UTC
- Depth
- 138.7 km (86.2 mi), intermediate-depth
- Epicenter
- 18.092° S, 174.959° 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 8.5 km horizontally, 9.6 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 78°
- Stations used
- 21
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.9128 km NW of Neiafu, Tonga · 2477 days ago · 155 km deep · 53 km away
- 4.5175 km NW of Neiafu, Tonga · 2450 days ago · 248 km deep · 63 km away
- 4.794 km NW of Neiafu, Tonga · 2449 days ago · 10 km deep · 46 km away
- 4.7134 km NW of Neiafu, Tonga · 2439 days ago · 10 km deep · 53 km away
- 4.8155 km NW of Neiafu, Tonga · 2438 days ago · 10 km deep · 44 km away
- 4.9109 km NW of Neiafu, Tonga · 2432 days ago · 92 km deep · 51 km away
- 4.790 km NNW of Neiafu, Tonga · 2428 days ago · 77 km deep · 57 km away
- 4.693 km NW of Neiafu, Tonga · 2420 days ago · 81 km deep · 41 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70006ual. Read Fri, Oct 2, 2026, 6:06 AM UTC.