M4.2 earthquake 109 km ESE of Hihifo, Tonga
A magnitude 4.2 earthquake struck 109 km ESE of Hihifo, Tonga on Fri, Aug 17, 2007, 3:43 PM GMT-11 (02:43 UTC), 35 km (21 mi) below the surface.
A larger quake followed: M4.9 64 km SE of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2007-08-18 02:43:49 UTC
- Depth
- 34.6 km (21.5 mi), shallow
- Epicenter
- 16.336° S, 172.856° 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 usp000fk30. 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
- 144°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.6Samoa Islands region · 6977 days ago · 45 km deep · 48 km away
- 4.5176 km SE of Hihifo, Tonga · 6977 days ago · 45 km deep · 83 km away
- 3.9108 km ESE of Hihifo, Tonga · 6971 days ago · 45 km deep · 5 km away
- 4.964 km SE of Hihifo, Tonga · 6940 days ago · 35 km deep · 51 km away
- 4.572 km ENE of Hihifo, Tonga · 6932 days ago · 10 km deep · 84 km away
- 4.9184 km SE of Hihifo, Tonga · 6932 days ago · 35 km deep · 92 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000fk30. Read Sun, Oct 4, 2026, 4:53 AM UTC.