M4.4 earthquake 152 km W of Neiafu, Tonga
A magnitude 4.4 earthquake struck 152 km W of Neiafu, Tonga on Mon, Aug 17, 2015, 11:53 PM GMT+13 (10:53 UTC), 203 km (126 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
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-08-17 10:53:58 UTC
- Depth
- 202.6 km (125.9 mi), intermediate-depth
- Epicenter
- 18.613° S, 175.427° 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 9.2 km horizontally, 4.7 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 84°
- Stations used
- 50
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4137 km NW of Neiafu, Tonga · 4053 days ago · 235 km deep · 93 km away
- 4.394 km WNW of Pangai, Tonga · 4033 days ago · 186 km deep · 93 km away
- 4.688 km WSW of Neiafu, Tonga · 4014 days ago · 68 km deep · 69 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100032u9. Read Mon, Oct 5, 2026, 4:41 AM UTC.