M5.2 earthquake 61 km E of Dennery, Saint Lucia
A magnitude 5.2 earthquake struck 61 km E of Dennery, Saint Lucia on Sun, Aug 7, 2011, 12:01 AM AST (04:01 UTC), 27 km (17 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.2 (Mwr, regional moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2011-08-07 04:01:09 UTC
- Depth
- 27.0 km (16.8 mi), shallow
- Epicenter
- 13.874° N, 60.326° W
- Region
- Saint Lucia
- Felt reports
- 200
- 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 |
|---|---|---|---|
| 5.2 | Mwr, regional moment | USGS National Earthquake Information Center | Preferred · Reviewed |
| 5.27 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
What happened
The USGS’s account of the effects of this earthquake.
Felt (V) at Cap Estate; (IV) at Castries, Choc and Vieux Fort; (III) at Gros Islet and Micoud. Felt (III) at Fort-de-France, Le Lamentin, Le Robert and Les Trois-Ilets and (II) at Saint-Joseph, Martinique. Felt (IV) at Biabou and (III) at Kingstown, Saint Vincent and (II) at Portsmouth, Dominica. Felt widely on Dominica, Martinique, Saint Lucia and Saint Vincent. Also felt on Grenada and in Guadeloupe.
From the USGS event page for usp000j644. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
200 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique normal
- Nodal plane 1
- Strike 35°, dip 12°, rake -124°
- Nodal plane 2
- Strike 250°, dip 80°, rake -83°
How well it is located
Reviewed by a seismologist.
- Station coverage gap
- 30°
- Stations used
- 377
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.2 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000j644 (also filed as usc0005a0t, iscgem16919917). Read Thu, Oct 1, 2026, 8:03 AM UTC.