M5.5 earthquake 109 km NW of Neiafu, Tonga
A magnitude 5.5 earthquake struck 109 km NW of Neiafu, Tonga on Sat, Nov 24, 2007, 1:22 AM GMT+13 (12:22 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M5.6 121 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
- 5.5 (Mwc, centroid moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2007-11-23 12:22:52 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 17.924° S, 174.683° 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. | Scale | Computed by | Notes |
|---|---|---|---|
| 5.5 | Mwc, centroid moment | USGS National Earthquake Information Center | Preferred · Reviewed |
| 5.48 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.5 | Mwc, centroid moment | Global CMT project | Preliminary |
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 usp000ft52. 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 360°, dip 44°, rake -98°
- Nodal plane 2
- Strike 191°, dip 46°, rake -82°
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
- Station coverage gap
- 41°
- Stations used
- 151
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.6121 km NW of Neiafu, Tonga · 6888 days ago · 35 km deep · 12 km away
- 5.3120 km NW of Neiafu, Tonga · 6888 days ago · 35 km deep · 16 km away
- 4.7144 km SSW of Hihifo, Tonga · 6859 days ago · 78 km deep · 97 km away
- 3.6152 km SW of Hihifo, Tonga · 6844 days ago · 143 km deep · 95 km away
- 4.540 km NNW of Neiafu, Tonga · 6837 days ago · 10 km deep · 73 km away
- 4.7149 km SSW of Hihifo, Tonga · 6830 days ago · 97 km deep · 88 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000ft52 (also filed as gcmtc200711231222a, gcmt20071123122252, iscgem13272540). Read Fri, Oct 2, 2026, 10:30 AM UTC.