M4.3 earthquake 28 km SSW of Pangai, Tonga
A magnitude 4.3 earthquake struck 28 km SSW of Pangai, Tonga on Fri, Dec 7, 2018, 7:25 AM GMT+13 (18:25 UTC), 73 km (45 mi) below the surface.
A larger quake followed: M6.4 91 km SW of Pangai, 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), light
- Local time
- UTC
- 2018-12-06 18:25:15 UTC
- Depth
- 73.2 km (45.5 mi), intermediate-depth
- Epicenter
- 20.044° S, 174.480° 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 20.0 km horizontally, 12.8 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- From location
- Station coverage gap
- 166°
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.148 km SE of Pangai, Tonga · 2847 days ago · 35 km deep · 43 km away
- 6.491 km SW of Pangai, Tonga · 2835 days ago · 113 km deep · 67 km away · felt by 3 · tsunami flag
- 5.096 km WSW of Pangai, Tonga · 2835 days ago · 78 km deep · 78 km away
- 4.675 km W of Pangai, Tonga · 2834 days ago · 117 km deep · 62 km away
- 4.0Tonga · 2813 days ago · 165 km deep · 82 km away
- 4.868 km NE of Kolonga, Tonga · 2807 days ago · 113 km deep · 69 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000isyf. Read Mon, Sep 28, 2026, 1:27 AM UTC.