M4.5 earthquake 183 km SSE of ‘Ohonua, Tonga
A magnitude 4.5 earthquake struck 183 km SSE of ‘Ohonua, Tonga on Fri, Aug 16, 2019, 1:03 PM GMT+13 (00:03 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.1 159 km S 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-08-16 00:03:18 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 22.901° S, 174.370° 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 8.0 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.19
- Depth from
- Operator assigned
- Station coverage gap
- 104°
- 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: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us700058du. Read Thu, Oct 1, 2026, 10:59 PM UTC.