Tonga earthquakes

M5.7 earthquake 223 km SE of Hihifo, Tonga

A magnitude 5.7 earthquake struck 223 km SE of Hihifo, Tonga on Mon, Aug 27, 2007, 6:11 AM GMT-11 (17:11 UTC), 8 km (5 mi) below the surface.

Apia forecastMore in Tonga

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
5.7 (Mwc, centroid moment), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2007-08-27 17:11:59 UTC
Depth
8.0 km (5.0 mi), shallow
Epicenter
17.311° S, 172.249° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
5.7Mwc, centroid momentUSGS National Earthquake Information CenterPreferred · Reviewed
5.73Mw, momentISC-GEM global catalogFinal · ±0.1
5.7Mwc, centroid momentGlobal CMT projectPreliminary
5.36Me, energyChoy, USGS energy magnitudeReviewed

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 usp000fku3. 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.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Normal
Nodal plane 1
Strike 3°, dip 42°, rake -117°
Nodal plane 2
Strike 217°, dip 53°, rake -68°

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED
Station coverage gap
28°
Stations used
410

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.7 and up: 6 in the 60 days after this one and 2 in the 30 days before it.

After

Before

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000fku3 (also filed as choy20070827171159, gcmtc200708271712a, gcmt20070827171159, iscgem12814294). Read Sun, Oct 4, 2026, 1:52 PM UTC.