M4.7 earthquake 151 km SE of Pangai, Tonga
A magnitude 4.7 earthquake struck 151 km SE of Pangai, Tonga on Thu, Dec 6, 1984, 2:07 AM GMT+13 (13:07 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M6.0 85 km SSE 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
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1984-12-05 13:07:13 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 20.801° S, 173.350° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.3127 km SE of Pangai, Tonga · 15240 days ago · 74 km deep · 25 km away
- 6.085 km SSE of Pangai, Tonga · 15216 days ago · 57 km deep · 83 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00029td. Read Thu, Oct 1, 2026, 10:42 PM UTC.