M4.6 earthquake 82 km W of Neiafu, Tonga
A magnitude 4.6 earthquake struck 82 km W of Neiafu, Tonga on Mon, May 4, 2009, 3:30 PM GMT+13 (02:30 UTC), 204 km (127 mi) below the surface.
A larger quake followed: M4.8 124 km NW of Neiafu, 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
- 2009-05-04 02:30:39 UTC
- Depth
- 204.4 km (127.0 mi), intermediate-depth
- Epicenter
- 18.766° S, 174.757° 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 usp000gwtk. 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
- 130°
- Stations used
- 16
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.7156 km WNW of Neiafu, Tonga · 6355 days ago · 247 km deep · 93 km away
- 4.691 km NW of Neiafu, Tonga · 6343 days ago · 62 km deep · 90 km away
- 4.8124 km NW of Neiafu, Tonga · 6337 days ago · 252 km deep · 97 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000gwtk. Read Mon, Oct 5, 2026, 4:03 AM UTC.