M4.0 earthquake 68 km ENE of Neiafu, Tonga
A magnitude 4.0 earthquake struck 68 km ENE of Neiafu, Tonga on Mon, Oct 20, 2014, 1:48 AM GMT+13 (12:48 UTC), 179 km (111 mi) below the surface.
A larger quake followed: M5.0 97 km E 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
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2014-10-19 12:48:37 UTC
- Depth
- 178.8 km (111.1 mi), intermediate-depth
- Epicenter
- 18.386° S, 173.396° 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 7.7 km horizontally, 18.0 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- FROM_LOCATION
- Station coverage gap
- 150°
- Stations used
- 10
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
- 4.774 km SE of Neiafu, Tonga · 4366 days ago · 10 km deep · 93 km away
- 4.140 km SE of Neiafu, Tonga · 4323 days ago · 10 km deep · 68 km away
- 5.097 km E of Neiafu, Tonga · 4317 days ago · 10 km deep · 36 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usb000ss1z. Read Mon, Oct 5, 2026, 2:46 PM UTC.