M4.6 earthquake 86 km ESE of Hihifo, Tonga
A magnitude 4.6 earthquake struck 86 km ESE of Hihifo, Tonga on Mon, Aug 24, 2020, 10:31 AM GMT+13 (21:31 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.7 109 km NE 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
- 2020-08-23 21:31:44 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 16.171° S, 173.015° 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 6.4 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- Operator assigned
- Station coverage gap
- 58°
- Stations used
- 36
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.570 km ESE of Hihifo, Tonga · 2228 days ago · 10 km deep · 18 km away
- 4.181 km NE of Hihifo, Tonga · 2216 days ago · 10 km deep · 98 km away
- 4.485 km SE of Hihifo, Tonga · 2210 days ago · 79 km deep · 50 km away
- 4.7109 km NE of Hihifo, Tonga · 2207 days ago · 10 km deep · 92 km away
- 4.377 km ESE of Hihifo, Tonga · 2202 days ago · 13 km deep · 10 km away
- 4.770 km S of Hihifo, Tonga · 2179 days ago · 49 km deep · 86 km away
- 4.1111 km SSE of Hihifo, Tonga · 2175 days ago · 76 km deep · 98 km away
- 4.665 km S of Hihifo, Tonga · 2170 days ago · 70 km deep · 87 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000beau. Read Thu, Oct 1, 2026, 1:34 AM UTC.