M4.1 earthquake 152 km NW of Pangai, Tonga
A magnitude 4.1 earthquake struck 152 km NW of Pangai, Tonga on Wed, Aug 5, 2015, 3:07 PM GMT+13 (02:07 UTC), 228 km (142 mi) below the surface.
A larger quake followed: M5.4 212 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
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-08-05 02:07:13 UTC
- Depth
- 228.3 km (141.8 mi), intermediate-depth
- Epicenter
- 18.898° S, 175.432° 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 12.1 km horizontally, 6.7 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 134°
- Stations used
- 20
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.9147 km WNW of Pangai, Tonga · 4076 days ago · 10 km deep · 80 km away
- 5.4212 km WNW of Pangai, Tonga · 4072 days ago · 10 km deep · 92 km away
- 4.4152 km W of Neiafu, Tonga · 4067 days ago · 203 km deep · 32 km away
- 4.394 km WNW of Pangai, Tonga · 4033 days ago · 186 km deep · 64 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10003401. Read Sun, Oct 4, 2026, 10:32 PM UTC.