M4.7 earthquake 150 km W of Pangai, Tonga
A magnitude 4.7 earthquake struck 150 km W of Pangai, Tonga on Tue, Aug 1, 2006, 9:16 AM GMT+13 (20:16 UTC), 233 km (145 mi) below the surface.
A larger quake followed: M5.3 192 km WNW 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
- 2006-07-31 20:16:09 UTC
- Depth
- 233.2 km (144.9 mi), intermediate-depth
- Epicenter
- 19.589° S, 175.771° 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 usp000epzm. 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
- 193°, poorly surrounded by stations
- Stations used
- 18
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 3 in the 30 days before it.
After
- 5.1125 km WNW of Pangai, Tonga · 7359 days ago · 10 km deep · 30 km away
- 5.3192 km WNW of Pangai, Tonga · 7359 days ago · 15 km deep · 50 km away
- 5.3185 km WNW of Pangai, Tonga · 7359 days ago · 37 km deep · 35 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000epzm. Read Mon, Oct 5, 2026, 4:09 AM UTC.