M4.5 earthquake 165 km SSE of ‘Ohonua, Tonga
A magnitude 4.5 earthquake struck 165 km SSE of ‘Ohonua, Tonga on Sun, Jul 15, 2018, 10:18 PM GMT+13 (09:18 UTC), 66 km (41 mi) below the surface.
A larger quake followed: M4.6 130 km ESE 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
- 2018-07-15 09:18:48 UTC
- Depth
- 66.2 km (41.1 mi), shallow
- Epicenter
- 22.581° S, 174.067° 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 7.2 km horizontally, 9.4 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 90°
- Stations used
- 21
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.6130 km ESE of ‘Ohonua, Tonga · 2981 days ago · 10 km deep · 89 km away
- 4.5191 km SE of ‘Ohonua, Tonga · 2978 days ago · 10 km deep · 67 km away
- 4.5194 km SSE of ‘Ohonua, Tonga · 2969 days ago · 10 km deep · 43 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000g9mw. Read Fri, Oct 2, 2026, 3:04 AM UTC.