M4.5 earthquake 131 km W of Pangai, Tonga
A magnitude 4.5 earthquake struck 131 km W of Pangai, Tonga on Fri, Aug 7, 2015, 2:53 AM GMT+13 (13:53 UTC), 230 km (143 mi) below the surface.
A larger quake followed: M5.6 55 km WNW of Pangai, 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
- 2015-08-06 13:53:04 UTC
- Depth
- 229.6 km (142.7 mi), intermediate-depth
- Epicenter
- 19.838° S, 175.608° 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 14.4 km horizontally, 14.0 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 104°
- Stations used
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.9147 km WNW of Pangai, Tonga · 4075 days ago · 10 km deep · 34 km away
- 5.655 km WNW of Pangai, Tonga · 4073 days ago · 46 km deep · 82 km away · felt by 2
- 5.4205 km NW of Nuku‘alofa, Tonga · 4056 days ago · 10 km deep · 88 km away
- 4.394 km WNW of Pangai, Tonga · 4033 days ago · 186 km deep · 69 km away
- 4.4148 km W of Pangai, Tonga · 4032 days ago · 183 km deep · 19 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100034gk. Read Sun, Oct 4, 2026, 5:10 PM UTC.