M4.6 earthquake 88 km WSW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 88 km WSW of Neiafu, Tonga on Fri, Oct 9, 2015, 10:55 PM GMT+13 (09:55 UTC), 68 km (42 mi) below the surface.
A larger quake followed: M5.3 47 km NNW 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-10-09 09:55:12 UTC
- Depth
- 67.5 km (42.0 mi), shallow
- Epicenter
- 18.817° S, 174.805° 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 5.7 km horizontally, 6.7 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 86°
- Stations used
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.347 km NNW of Neiafu, Tonga · 3985 days ago · 10 km deep · 100 km away
- 4.1106 km WNW of Neiafu, Tonga · 3978 days ago · 169 km deep · 46 km away
- 4.6151 km W of Neiafu, Tonga · 3956 days ago · 217 km deep · 72 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10003p58. Read Mon, Oct 5, 2026, 1:42 PM UTC.