Lecture 5 Intro to Natural Hazards

Lecture 5 Intro to Natural Hazards - Lecture 5:...

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1 Lecture 5: Introduction to Natural Hazards Today's objectives: Conditions: natural processes=hazards how these hazards may be beneficial to people. Linkages: history process prediction and risk assessment Linkages: natural hazards increasing population changing land use 2 Lecture 5: Introduction to Natural Hazards Conditions: Natural Processes: Why are they sometimes considered hazardous?? 3 Lecture 5: Introduction to Natural Hazards When do they become serious hazards?? Impact! Impact related to: Magnitude - energy of the event Frequency - recurrence of the event Frequency α 1 magnitude Thankfully large impact events are infrequent Conditions: 4 Lecture 5: Introduction to Natural Hazards Measurement of impact: Damage and Death > # deaths: floods tornadoes lightening > cost $$ earthquakes Conditions: 5 Lecture 5 Introduction to Natural Hazards Catastrophe!!!… what is it??? 6 Lecture 5: Introduction to Natural Hazards Etna, Sicily: volcanic ash and lava flows become fertile soil Why might natural hazards or disasters be considered beneficial?
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7 Lecture 5: Introduction to Natural Hazards
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This note was uploaded on 01/19/2012 for the course EARTH SCIE 1081 taught by Professor Samrussell during the Fall '11 term at UWO.

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Lecture 5 Intro to Natural Hazards - Lecture 5:...

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