M4.6 earthquake 36 km SSE of Hihifo, Tonga
A magnitude 4.6 earthquake struck 36 km SSE of Hihifo, Tonga on Sat, Nov 6, 2021, 10:57 PM GMT+13 (09:57 UTC), 73 km (46 mi) below the surface.
A larger quake followed: M5.6 124 km SSE of Hihifo, 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
- 2021-11-06 09:57:23 UTC
- Depth
- 73.4 km (45.6 mi), intermediate-depth
- Epicenter
- 16.242° S, 173.622° 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 15.2 km horizontally, 9.7 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 142°
- Stations used
- 25
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.2124 km S of Hihifo, Tonga · 1788 days ago · 35 km deep · 93 km away
- 4.875 km E of Hihifo, Tonga · 1782 days ago · 10 km deep · 66 km away
- 4.858 km N of Hihifo, Tonga · 1772 days ago · 10 km deep · 90 km away
- 4.695 km SE of Hihifo, Tonga · 1746 days ago · 10 km deep · 60 km away
- 5.6124 km SSE of Hihifo, Tonga · 1740 days ago · 43 km deep · 90 km away · felt by 5
Before
- 4.774 km SSE of Hihifo, Tonga · 1793 days ago · 10 km deep · 40 km away
- 4.313 km E of Hihifo, Tonga · 1793 days ago · 71 km deep · 30 km away
- 4.6106 km ESE of Hihifo, Tonga · 1797 days ago · 10 km deep · 85 km away
- 5.0121 km S of Hihifo, Tonga · 1803 days ago · 75 km deep · 96 km away
- 4.331 km ESE of Hihifo, Tonga · 1810 days ago · 107 km deep · 20 km away
- 4.5108 km SSW of Hihifo, Tonga · 1813 days ago · 156 km deep · 91 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000frz4. Read Wed, Sep 30, 2026, 6:58 AM UTC.