Minor earthquake near Cayman

A 4.6 magnitude earthquake occurred about 91 miles south-southwest of Grand Cayman Thursday morning.

The earthquake occurred along what is known as the Swan Island Fault at a depth of 25 kilometers. A similar earthquake – 4.4 magnitude at 15 kilometers – occurred on Aug. 14, 2014 about 40 miles further west along the same fault.

The Cayman Islands is situated close to two fault zones and earthquakes occur in the area fairly regularly. According the website earthquaketrack.com, which aggregates earthquake information released by the United States Geological Survey organization, this was the seventh earthquake in the Cayman Islands region in the past year. The largest earthquakes in the last year were the two that occurred on Sept. 3 along the Oriente Fracture Zone, which is also south of Grand Cayman but much closer. Those earthquakes registered magnitudes of 5.1 and 5.2.

The largest earthquake in the Cayman Islands area in recent years occurred on Dec. 14, 2004, when one of 6.8 magnitude rattled Grand Cayman and caused some minor damage. There was also a 5.9 magnitude earthquake in the area in 2010.

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