M4.4 earthquake 148 km W of Pangai, Tonga
A magnitude 4.4 earthquake struck 148 km W of Pangai, Tonga on Sun, Sep 20, 2015, 8:20 PM GMT+13 (07:20 UTC), 183 km (113 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-09-20 07:20:54 UTC
- Depth
- 182.7 km (113.5 mi), intermediate-depth
- Epicenter
- 19.778° S, 175.775° 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 9.8 km horizontally, 6.3 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 82°
- Stations used
- 112
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 2 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20003m4i. Read Sun, Oct 4, 2026, 10:33 PM UTC.