M4.2 earthquake 124 km WSW of Neiafu, Tonga
A magnitude 4.2 earthquake struck 124 km WSW of Neiafu, Tonga on Fri, Feb 21, 2020, 9:04 AM GMT+13 (20:04 UTC), 241 km (150 mi) below the surface.
A larger quake followed: M4.6 51 km WNW 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-02-20 20:04:19 UTC
- Depth
- 240.6 km (149.5 mi), intermediate-depth
- Epicenter
- 18.881° S, 175.138° 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 11.0 km horizontally, 9.5 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 149°
- Stations used
- 21
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.3133 km WNW of Pangai, Tonga · 2396 days ago · 226 km deep · 72 km away
- 4.5158 km W of Neiafu, Tonga · 2380 days ago · 267 km deep · 42 km away
- 4.651 km WNW of Neiafu, Tonga · 2358 days ago · 89 km deep · 90 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us600084pm. Read Sat, Oct 3, 2026, 8:15 AM UTC.