M4.6 earthquake 124 km WSW of Hihifo, Tonga
A magnitude 4.6 earthquake struck 124 km WSW of Hihifo, Tonga on Sun, Oct 9, 2016, 11:23 AM GMT-12 (23:23 UTC), 23 km (14 mi) below the surface.
A larger quake followed: M4.9 85 km SSW of Hihifo, 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
- 2016-10-09 23:23:50 UTC
- Depth
- 23.1 km (14.4 mi), shallow
- Epicenter
- 16.440° S, 174.846° 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 12.9 km horizontally, 6.2 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 85°
- Stations used
- 39
Nearby
Within 100 km, magnitude 1.6 and up: 6 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.985 km SSW of Hihifo, Tonga · 3631 days ago · 110 km deep · 89 km away
- 4.5120 km SSW of Hihifo, Tonga · 3625 days ago · 168 km deep · 94 km away
- 4.9150 km WSW of Hihifo, Tonga · 3611 days ago · 136 km deep · 27 km away
- 4.4148 km SW of Hihifo, Tonga · 3605 days ago · 271 km deep · 57 km away
- 4.534 km WSW of Hihifo, Tonga · 3598 days ago · 133 km deep · 90 km away
- 4.6151 km SSW of Hihifo, Tonga · 3587 days ago · 166 km deep · 89 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20007e5m. Read Sun, Oct 4, 2026, 12:15 PM UTC.