M4.4 earthquake 101 km ESE of Neiafu, Tonga
A magnitude 4.4 earthquake struck 101 km ESE of Neiafu, Tonga on Fri, Aug 21, 2020, 2:24 PM GMT+13 (01:24 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 133 km ESE 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-08-21 01:24:12 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 19.091° S, 173.138° 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 13.4 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- Operator assigned
- Station coverage gap
- 90°
- Stations used
- 24
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
- 4.459 km NE of Pangai, Tonga · 2192 days ago · 35 km deep · 96 km away
- 4.661 km S of Neiafu, Tonga · 2192 days ago · 35 km deep · 93 km away
- 4.4Tonga region · 2191 days ago · 10 km deep · 42 km away
- 4.673 km NE of Pangai, Tonga · 2187 days ago · 35 km deep · 78 km away
- 4.464 km S of Neiafu, Tonga · 2186 days ago · 35 km deep · 98 km away
- 4.9133 km ESE of Neiafu, Tonga · 2176 days ago · 10 km deep · 36 km away
- 4.1Tonga · 2175 days ago · 23 km deep · 99 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000bdrd. Read Fri, Oct 2, 2026, 6:46 AM UTC.