M4.6 earthquake 60 km ENE of Pangai, Tonga
A magnitude 4.6 earthquake struck 60 km ENE of Pangai, Tonga on Thu, Aug 31, 2006, 9:18 PM GMT+13 (08:18 UTC), 92 km (57 mi) below the surface.
A larger quake followed: M4.7 22 km S 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2006-08-31 08:18:57 UTC
- Depth
- 91.6 km (56.9 mi), intermediate-depth
- Epicenter
- 19.663° S, 173.798° W
- Region
- Tonga
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
no people dead or missing; no people injured; no buildings damaged or destroyed
From the USGS event page for usp000es5a. U.S. Geological Survey text and figures are in the public domain.
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
- Station coverage gap
- 240°, poorly surrounded by stations
- Stations used
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.677 km SSE of Pangai, Tonga · 7323 days ago · 10 km deep · 89 km away
- 4.517 km WSW of Pangai, Tonga · 7310 days ago · 25 km deep · 78 km away
- 4.625 km SW of Pangai, Tonga · 7294 days ago · 35 km deep · 85 km away
- 4.722 km S of Pangai, Tonga · 7287 days ago · 35 km deep · 73 km away
- 4.322 km ENE of Pangai, Tonga · 7285 days ago · 3 km deep · 38 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000es5a. Read Mon, Oct 5, 2026, 12:01 AM UTC.