M4.7 earthquake 100 km SSE of Hihifo, Tonga
A magnitude 4.7 earthquake struck 100 km SSE of Hihifo, Tonga on Sat, Nov 21, 2020, 5:47 PM GMT+14 (03:47 UTC), 83 km (52 mi) below the surface.
A larger quake followed: M5.1 98 km SE 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
- 4.7 (mb), light
- Local time
- UTC
- 2020-11-21 03:47:48 UTC
- Depth
- 83.2 km (51.7 mi), intermediate-depth
- Epicenter
- 16.779° S, 173.403° 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 10.0 km horizontally, 7.7 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 126°
- Stations used
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 10 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.478 km ESE of Hihifo, Tonga · 2135 days ago · 10 km deep · 78 km away
- 4.695 km SSE of Hihifo, Tonga · 2134 days ago · 10 km deep · 14 km away
- 4.693 km SSE of Hihifo, Tonga · 2133 days ago · 19 km deep · 15 km away
- 4.136 km SW of Hihifo, Tonga · 2128 days ago · 85 km deep · 90 km away
- 5.198 km SE of Hihifo, Tonga · 2117 days ago · 10 km deep · 26 km away
- 4.9162 km SSE of Hihifo, Tonga · 2116 days ago · 10 km deep · 64 km away
- 4.3135 km SSW of Hihifo, Tonga · 2115 days ago · 84 km deep · 95 km away
- 4.3139 km N of Neiafu, Tonga · 2108 days ago · 549 km deep · 86 km away
- 4.313 km SE of Hihifo, Tonga · 2103 days ago · 98 km deep · 90 km away
- 4.6120 km SSW of Hihifo, Tonga · 2088 days ago · 148 km deep · 72 km away
Before
- 4.996 km SSE of Hihifo, Tonga · 2140 days ago · 84 km deep · 22 km away
- 4.699 km SE of Hihifo, Tonga · 2143 days ago · 22 km deep · 42 km away
- 4.377 km SW of Hihifo, Tonga · 2147 days ago · 110 km deep · 94 km away
- 4.3109 km SSE of Hihifo, Tonga · 2149 days ago · 32 km deep · 15 km away
- 4.9133 km SSW of Hihifo, Tonga · 2150 days ago · 134 km deep · 88 km away
- 4.2106 km SSW of Hihifo, Tonga · 2165 days ago · 141 km deep · 70 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000csem. Read Wed, Sep 30, 2026, 10:33 AM UTC.