M4.7 earthquake 142 km NNW of Houma, Tonga
A magnitude 4.7 earthquake struck 142 km NNW of Houma, Tonga on Wed, Aug 21, 2024, 12:32 AM GMT+13 (11:32 UTC), 200 km (124 mi) below the surface.
A larger quake followed: M6.9 75 km W of Pangai, 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
- 2024-08-20 11:32:30 UTC
- Depth
- 199.5 km (124.0 mi), intermediate-depth
- Epicenter
- 19.989° S, 175.833° 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 10.9 km horizontally, 6.8 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 52°
- Stations used
- 65
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 7 in the 60 days after this one and 0 in the 30 days before it.
After
- 6.975 km W of Pangai, Tonga · 768 days ago · 96 km deep · 82 km away · felt by 24 · tsunami flag
- 6.065 km W of Pangai, Tonga · 768 days ago · 99 km deep · 92 km away · felt by 1
- 5.392 km W of Pangai, Tonga · 768 days ago · 101 km deep · 64 km away
- 4.595 km W of Pangai, Tonga · 768 days ago · 100 km deep · 62 km away
- 4.4118 km WNW of Pangai, Tonga · 740 days ago · 171 km deep · 64 km away
- 4.7113 km W of Pangai, Tonga · 732 days ago · 161 km deep · 42 km away
- 4.684 km W of Pangai, Tonga · 728 days ago · 110 km deep · 72 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000n86i. Read Sat, Oct 3, 2026, 2:43 AM UTC.