M4.4 earthquake 88 km NW of Neiafu, Tonga
A magnitude 4.4 earthquake struck 88 km NW of Neiafu, Tonga on Sun, Oct 17, 2021, 12:13 PM GMT+13 (23:13 UTC), 131 km (81 mi) below the surface.
A larger quake followed: M4.6 125 km NNW 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
- 4.4 (mb), light
- Local time
- UTC
- 2021-10-16 23:13:27 UTC
- Depth
- 130.9 km (81.3 mi), intermediate-depth
- Epicenter
- 18.087° S, 174.579° 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 15.8 km horizontally, 8.9 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 147°
- Stations used
- 27
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.1168 km NNW of Neiafu, Tonga · 1804 days ago · 308 km deep · 86 km away
- 4.6125 km NNW of Neiafu, Tonga · 1794 days ago · 176 km deep · 49 km away
- 4.2144 km NW of Neiafu, Tonga · 1792 days ago · 262 km deep · 58 km away
- 4.533 km NE of Neiafu, Tonga · 1791 days ago · 44 km deep · 95 km away
- 4.285 km NNW of Neiafu, Tonga · 1787 days ago · 67 km deep · 31 km away
- 4.6138 km NW of Neiafu, Tonga · 1780 days ago · 227 km deep · 51 km away
- 4.5103 km NNW of Neiafu, Tonga · 1760 days ago · 80 km deep · 42 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000fw7c. Read Wed, Sep 30, 2026, 5:31 AM UTC.