M4.7 earthquake 81 km SSE of Pangai, Tonga
A magnitude 4.7 earthquake struck 81 km SSE of Pangai, Tonga on Wed, Oct 24, 1984, 10:36 AM GMT+13 (21:36 UTC), 109 km (68 mi) below the surface.
A larger quake followed: M5.5 67 km ESE 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), light
- Local time
- UTC
- 1984-10-23 21:36:46 UTC
- Depth
- 109.0 km (67.7 mi), intermediate-depth
- Epicenter
- 20.473° S, 174.006° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00028em. Read Wed, Sep 30, 2026, 4:42 AM UTC.