M5.1 earthquake 82 km SE of Hihifo, Tonga
A magnitude 5.1 earthquake struck 82 km SE of Hihifo, Tonga on Mon, Apr 16, 2007, 7:00 AM GMT-11 (18:00 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (Mwc, centroid moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2007-04-16 18:00:49 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 16.458° S, 173.226° 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 |
|---|---|---|---|
| 5.1 | Mwc, centroid moment | USGS National Earthquake Information Center | Preferred · Reviewed |
| 5.07 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.1 | 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 usp000f9vy. 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
- Strike-slip
- Nodal plane 1
- Strike 62°, dip 63°, rake 23°
- Nodal plane 2
- Strike 321°, dip 70°, rake 151°
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
- Station coverage gap
- 129°
- Stations used
- 28
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.3137 km S of Hihifo, Tonga · 7095 days ago · 35 km deep · 93 km away
- 4.9125 km SE of Hihifo, Tonga · 7090 days ago · 45 km deep · 44 km away
- 4.797 km E of Hihifo, Tonga · 7085 days ago · 35 km deep · 56 km away
- 4.382 km S of Hihifo, Tonga · 7077 days ago · 35 km deep · 63 km away
- 4.467 km E of Hihifo, Tonga · 7064 days ago · 10 km deep · 60 km away
- 4.644 km SE of Hihifo, Tonga · 7059 days ago · 15 km deep · 39 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000f9vy (also filed as gcmtc200704161800a, gcmt20070416180049, iscgem11927118). Read Sun, Oct 4, 2026, 1:55 AM UTC.