Now that 2011 is coming to a close, PC360 updates and revisits its list of top natural catastrophes of 2011. The 10 events pictured here are the largest insured-loss events for the year according to data gathered from both Swiss Re and catastrophe-modeler AIR Worldwide. Many other events occurred throughout an active 2011 aside from the ones on this list. Some of those events had larger economic losses than the ones here, but lower insured losses. 

Swiss Re says in a sigma analysis that 2011 would have been the costliest year for insured losses from catastrophes—both natural and manmade—if Japan had been more fully insured for earthquake risk. As it stands, Swiss Re estimates that 2011 will see approximately $108 billion in insured manmade and natural catastrophe losses, second only to 2005, when insured catastrophe losses reached $123 billion.

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