Re: [Utah-astronomy] 2003 UV11 What if it hit Salt Lake City
David, There was a study in 2007 by Sandia Labs out of Livermore CA (where I grew up) found at https://share.sandia.gov/news/resources/releases/2007/asteroid.html that shows that the size of the Tungska event is actually smaller than orginally thought. Tungska's object created a yield of 3-5 megatons, which is revised down from the 10-20 megatons of earlier. Thus the size of the object would be about 60% less. How often is still up for grabs from what I've read but I'm sure they are more defined. I think Shoemaker estimated Tunguska events around every 300 years. From the Sandia study it looks like even smaller ones could still do major damage over a major metropolitan area. -- Jay Eads
Interesting stuff Thanks Jay :) On 10/30/2010 2:06 AM, Jay Eads wrote:
David,
There was a study in 2007 by Sandia Labs out of Livermore CA (where I grew up) found at https://share.sandia.gov/news/resources/releases/2007/asteroid.html that shows that the size of the Tungska event is actually smaller than orginally thought. Tungska's object created a yield of 3-5 megatons, which is revised down from the 10-20 megatons of earlier. Thus the size of the object would be about 60% less. How often is still up for grabs from what I've read but I'm sure they are more defined. I think Shoemaker estimated Tunguska events around every 300 years. From the Sandia study it looks like even smaller ones could still do major damage over a major metropolitan area.
A "mere" kiloton would ruin your day, just ask the Japanese.
Interesting stuff
Thanks Jay :)
On 10/30/2010 2:06 AM, Jay Eads wrote:
David,
There was a study in 2007 by Sandia Labs out of Livermore CA (where I grew up) found at https://share.sandia.gov/news/resources/releases/2007/asteroid.html that shows that the size of the Tungska event is actually smaller than orginally thought. Tungska's object created a yield of 3-5 megatons, which is revised down from the 10-20 megatons of earlier. Thus the size of the object would be about 60% less. How often is still up for grabs from what I've read but I'm sure they are more defined. I think Shoemaker estimated Tunguska events around every 300 years. From the Sandia study it looks like even smaller ones could still do major damage over a major metropolitan area.
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4" of snow can ruin my day, if UDOT gets caught with their pants down. On 10/31/10, erikhansen@thebluezone.net <erikhansen@thebluezone.net> wrote:
A "mere" kiloton would ruin your day, just ask the Japanese.
Interesting stuff
Thanks Jay :)
On 10/30/2010 2:06 AM, Jay Eads wrote:
David,
There was a study in 2007 by Sandia Labs out of Livermore CA (where I grew up) found at https://share.sandia.gov/news/resources/releases/2007/asteroid.html that shows that the size of the Tungska event is actually smaller than orginally thought. Tungska's object created a yield of 3-5 megatons, which is revised down from the 10-20 megatons of earlier. Thus the size of the object would be about 60% less. How often is still up for grabs from what I've read but I'm sure they are more defined. I think Shoemaker estimated Tunguska events around every 300 years. From the Sandia study it looks like even smaller ones could still do major damage over a major metropolitan area.
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participants (4)
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Chuck Hards -
David Rankin -
erikhansen＠thebluezone.net -
Jay Eads