M5.6 earthquake 33 km SSW of Pangai, Tonga
A magnitude 5.6 earthquake struck 33 km SSW of Pangai, Tonga on Mon, May 28, 2007, 7:12 AM GMT+13 (18:12 UTC), 7 km (5 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.6 (Mwb, body-wave moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2007-05-27 18:12:34 UTC
- Depth
- 7.3 km (4.5 mi), shallow
- Epicenter
- 20.069° S, 174.519° W
- Region
- Tonga
- Felt reports
- 3
- 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 |
|---|---|---|---|
| 5.6 | Mwb, body-wave moment | USGS National Earthquake Information Center | Preferred · Reviewed |
| 5.52 | 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.
Felt at Nuku`alofa and Pangai.
From the USGS event page for usp000fcvv. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
3 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Reverse (thrust)
- Nodal plane 1
- Strike 290°, dip 41°, rake 62°
- Nodal plane 2
- Strike 145°, dip 54°, rake 112°
How well it is located
Reviewed by a seismologist.
- Station coverage gap
- 28°
- Stations used
- 375
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.6 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.526 km WSW of Pangai, Tonga · 7068 days ago · 25 km deep · 24 km away
- 4.236 km SSE of Pangai, Tonga · 7066 days ago · 10 km deep · 32 km away
- 5.068 km SSE of Pangai, Tonga · 7065 days ago · 40 km deep · 56 km away
- 4.316 km WNW of Pangai, Tonga · 7044 days ago · 25 km deep · 35 km away
- 4.465 km S of Pangai, Tonga · 7010 days ago · 35 km deep · 46 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000fcvv (also filed as us2007cwau, gcmtc200705271812a, gcmt20070527181234, iscgem12664489). Read Fri, Oct 2, 2026, 12:04 PM UTC.