Natural Hazards. What are the greatest risks? Are these risks increasing? What are the costs associated with environmental hazards? Are the relative costs the same around the world? What controls these costs? How do we define risk?. So… What are common hazards.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Data is a 150 year average from 19th and 20th centuries (Keller, 1999).
Tornadoes (U.S. only)
Wind (other than tornado)
Temperate winter storm
For 20th century data from WHO (2002), U.S. tornado data are only for 1950-1995 for only F2-F5 size events
Data for 20th century, based on WHO (2002) data.
Cost of natural hazards, summarized by type for top 100 most costly events of 20th century (WHO, 2002).
Kansas, May 4, 2007
-Doppler radar gave a 20-minute warning
-Tornado was 1.5 miles across at its base
-95% of the town was leveled
Lightening strikes 100 times/second worldwide, with the greatest number of hits in central Africa. In the U.S. the greatest number of lightening strikes occur in Florida.
The Empire State building is hit on average 100 times/year.