M4.7 earthquake 155 km NNW of Nuku‘alofa, Tonga
A magnitude 4.7 earthquake struck 155 km NNW of Nuku‘alofa, Tonga on Wed, Nov 18, 2020, 2:57 AM GMT+13 (13:57 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 109 km NNW of Nuku‘alofa, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-11-17 13:57:49 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 19.969° S, 176.031° 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 15.5 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.25
- Depth from
- Operator assigned
- Station coverage gap
- 162°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.9109 km NNW of Nuku‘alofa, Tonga · 2137 days ago · 198 km deep · 50 km away
- 4.4185 km NW of Nuku‘alofa, Tonga · 2132 days ago · 285 km deep · 30 km away
- 4.8158 km W of Pangai, Tonga · 2130 days ago · 220 km deep · 26 km away
- 4.4118 km NNW of Nuku‘alofa, Tonga · 2124 days ago · 163 km deep · 40 km away
- 4.3119 km W of Pangai, Tonga · 2122 days ago · 192 km deep · 66 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000cqs6. Read Fri, Oct 2, 2026, 7:13 AM UTC.