M4.9 earthquake 104 km SSE of Pangai, Tonga
A magnitude 4.9 earthquake struck 104 km SSE of Pangai, Tonga on Sat, Jul 7, 2018, 11:50 AM GMT+13 (22:50 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.4 118 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
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-07-06 22:50:56 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 20.610° S, 173.813° 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 8.8 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 85°
- Stations used
- 209
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.053 km NE of Kolonga, Tonga · 2973 days ago · 27 km deep · 91 km away · felt by 2
- 5.4118 km ENE of ‘Ohonua, Tonga · 2959 days ago · 10 km deep · 32 km away
- 4.4111 km SSE of Pangai, Tonga · 2959 days ago · 10 km deep · 7 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000fyr3. Read Fri, Oct 2, 2026, 6:31 PM UTC.