M4.3 earthquake 83 km SW of Vaini, Tonga
A magnitude 4.3 earthquake struck 83 km SW of Vaini, Tonga on Wed, Oct 24, 2018, 8:14 AM GMT+13 (19:14 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.6 60 km W of Haveluloto, 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
- 2018-10-23 19:14:41 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 21.759° S, 175.705° 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 19.4 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.22
- Depth from
- Operator assigned
- Station coverage gap
- 294°, poorly surrounded by stations
- Stations used
- 11
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.660 km W of Haveluloto, Tonga · 2869 days ago · 10 km deep · 72 km away
- 4.8124 km SW of ‘Ohonua, Tonga · 2865 days ago · 96 km deep · 48 km away
- 4.340 km SSE of ‘Ohonua, Tonga · 2856 days ago · 35 km deep · 98 km away
- 4.3133 km SW of Haveluloto, Tonga · 2856 days ago · 190 km deep · 54 km away
- 4.959 km W of Haveluloto, Tonga · 2843 days ago · 85 km deep · 68 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000hh44. Read Fri, Oct 2, 2026, 5:05 AM UTC.