A shallow magnitude 7.4 earthquake has hit southern Mexico about 11:30 Eastern Time.  Here is the potential disaster area …

Damage reports are coming in, it is likely there are about 1 million people in the area of highest risk, and perhaps 90 thousand people in structures with a significant risk of collapse.  Economic impact is likely to reach into the Billions of US Dollars, with an early best estimate of approximately $3 Billion USD.