I don’t know this subject well, but I’m pretty sure this is unusual:
A strong earthquake occurred about 250 miles (405 km) south-southwest of Apalachicola, Florida at 8:56 AM MDT, Sep 10, 2006 (10:56 AM EDT in Florida). The magnitude and location may be revised when additional data and further analysis results are available. This earthquake was felt in parts of Florida, Georgia and Alabama. No reports of damage or casualties have been received at this time.
No doubt this means the End Times are near.