M4.3 earthquake 94 km WNW of Pangai, Tonga
A magnitude 4.3 earthquake struck 94 km WNW of Pangai, Tonga on Sun, Sep 20, 2015, 11:10 AM GMT+13 (22:10 UTC), 186 km (115 mi) below the surface.
A larger quake followed: M4.6 88 km WSW of Neiafu, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-09-19 22:10:22 UTC
- Depth
- 185.6 km (115.3 mi), intermediate-depth
- Epicenter
- 19.401° S, 175.142° 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 10.6 km horizontally, 13.6 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 111°
- Stations used
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10003ju7. Read Mon, Oct 5, 2026, 6:57 AM UTC.