Source: YouTube
U.S. Geological Survey geophysicist Jill McCarthy said there were two
 tremors Saturday — a 4.7 magnitude about 2 a.m. and a 5.6 magnitude 
shortly before 11 p.m., and a series of aftershocks in between.
The magnitude 5.6 earthquake in Oklahoma on Saturday night felt was 
as far as Wisconsin, U.S. Geological Survey geophysicist Jill McCarthy 
said.
“We have had eight recorded earthquakes (in Oklahoma) in the past 24 hours or so,” she said.
