M4.6 earthquake 119 km WNW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 119 km WNW of Neiafu, Tonga on Fri, Apr 23, 2021, 8:27 AM GMT+13 (19:27 UTC), 154 km (95 mi) below the surface.
A larger quake followed: M5.7 147 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), light
- Local time
- UTC
- 2021-04-22 19:27:32 UTC
- Depth
- 153.6 km (95.5 mi), intermediate-depth
- Epicenter
- 18.346° S, 175.072° 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 11.2 km horizontally, 5.9 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 144°
- Stations used
- 27
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.1169 km NW of Neiafu, Tonga · 1966 days ago · 210 km deep · 74 km away
- 4.674 km NW of Neiafu, Tonga · 1957 days ago · 80 km deep · 76 km away
- 5.7147 km NW of Neiafu, Tonga · 1953 days ago · 201 km deep · 90 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000dy9s. Read Tue, Sep 29, 2026, 4:59 PM UTC.