M4.3 earthquake 77 km E of ‘Ohonua, Tonga
A magnitude 4.3 earthquake struck 77 km E of ‘Ohonua, Tonga on Thu, Aug 1, 2019, 12:13 PM GMT+13 (23:13 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.3 121 km ENE of ‘Ohonua, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-07-31 23:13:25 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 21.337° S, 174.205° 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, 2.0 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- Operator assigned
- Station coverage gap
- 119°
- Stations used
- 12
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.6121 km ESE of ‘Ohonua, Tonga · 2612 days ago · 10 km deep · 68 km away
- 5.3121 km ENE of ‘Ohonua, Tonga · 2611 days ago · 10 km deep · 51 km away
- 5.1125 km E of ‘Ohonua, Tonga · 2597 days ago · 10 km deep · 50 km away
- 5.1130 km E of ‘Ohonua, Tonga · 2596 days ago · 10 km deep · 53 km away · felt by 1
- 4.9117 km E of ‘Ohonua, Tonga · 2586 days ago · 10 km deep · 41 km away
- 4.1117 km SSE of Pangai, Tonga · 2576 days ago · 10 km deep · 86 km away
- 4.484 km SSE of Pangai, Tonga · 2566 days ago · 10 km deep · 88 km away
Before
- 4.471 km ESE of ‘Ohonua, Tonga · 2626 days ago · 10 km deep · 27 km away
- 4.1153 km ESE of ‘Ohonua, Tonga · 2629 days ago · 10 km deep · 99 km away
- 4.6124 km SE of ‘Ohonua, Tonga · 2641 days ago · 10 km deep · 94 km away
- 5.099 km ESE of ‘Ohonua, Tonga · 2646 days ago · 10 km deep · 32 km away
- 5.195 km SSE of Pangai, Tonga · 2646 days ago · 10 km deep · 94 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us600052c5. Read Fri, Oct 2, 2026, 12:49 PM UTC.