Risk Communication

Reuters - November 7, 2011

One of the strongest earthquakes in the history of Oklahoma hit near the town of Sparks on Saturday night. At 5.6 in magnitude, it was the bell-ringer of a series of shakes. What is not clear is where this unusual seismic activity is coming from. The Oklahoman reported:

After the main shock, there were 12 temblors registering at magnitudes of 3.0 or higher and more than 70 quakes with magnitudes of 1.0 to 2.5, Oklahoma Geological Survey research scientist Amie Gibson said Sunday.

“We really hope that the 5.6 was the main shock because I don’t want to see anything like that again, personally. It would be ignorant to assume anything right now, because who would assume that we’d have the two biggest ones in one day?” Gibson said.

Before Saturday night, the strongest earthquake recorded was April 9, 1952, in El Reno, according to the geological survey. Its magnitude was 5.5.

U.S. Geological Survey geophysicist Don Blakeman said the agency doesn’t know why Saturday’s quakes struck so close together.

CBS News - September 2, 2011

A firefighter breaks down after the World Trade Center buildings collapsed September 11, 2001 after two hijacked airplanes slammed into the twin towers in a terrorist attack.  (Credit: Mario Tama/Getty Images)

(CBS) The 9/11 terrorist attacks in New York City killed almost 3,000 people, but what about New Yorkers who were in the area at the time but survived? New studies show they face heightened risk for asthma, post-traumatic stress disorder, and cancer - but not all health experts agree the attacks are to blame for survivors' health problems.

For one study - published in the September 1 issue of The Lancet - Mount Sinai researchers evaluated more than 27,000 police officers, firefighters, construction workers, and office workers who were in or around ground zero over the nine years following 9/11. The researchers found more than one in five responders had multiple physical or mental health illnesses.