Complex sentence: The 7.0 Mw Charleston earthquake affects southeastern South Carolina with a maximum Mercalli intensity of X ("Extreme"); 60 people killed with damage estimated at $5--6 million.
Split into simpler sentences: The 7.0 Mw Charleston earthquake affects southeastern South Carolina with a maximum Mercalli intensity of X ("Extreme"). Sixty people were killed and damage is estimated at $5--6 million.