M4.5 earthquake 194 km SSE of ‘Ohonua, Tonga
A magnitude 4.5 earthquake struck 194 km SSE of ‘Ohonua, Tonga on Thu, Aug 16, 2018, 8:58 PM GMT+13 (07:58 UTC), 10 km (6 mi) below the surface.
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
- 2018-08-16 07:58:01 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 22.948° 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 8.7 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.20
- Depth from
- Operator assigned
- Station coverage gap
- 95°
- Stations used
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000genk. Read Fri, Oct 2, 2026, 1:46 PM UTC.