Complex sentence: More recently, events occurred in Escambia County in 1997 and in 2003 in Fort Payne, registering magnitudes of 4.9 and spawning shaking; the Fort Payne earthquake spread over 13 states and wrought structural cracks.
Split into simpler sentences: More recently, events occurred in Escambia County in 1997 and in 2003 in Fort Payne, registering magnitudes of 4.9 and spawning shaking. The Fort Payne earthquake spread over 13 states and wrought structural cracks.