Earthquake damage is measured by 2 scales:

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Presentation transcript:

Earthquake damage is measured by 2 scales: Richter Scale 1-10 each increase of 1=10 fold increase in shaking (exponential) Mercalli Scale I-XII based on the damage to buildings and observed effects Richter scale use plastic bottle demonstration

Major Hazards of Earthquakes 1. Buildings and/or structures Collapse 2. Landslides 3. Fire from gas leaks 4. Tsunamis (Not Tidal Waves!)

How can you protect yourself? Secure heavy objects Identify shelters Plan evacuation route Prepare emergency medical kits Store food, supplies and fresh water Build earthquake resistant structures

Tsunamis Large ocean waves Caused by underwater earthquakes Travel about 400 mph Pass Unnoticed at Sea, Cause Damage on Shore Warning Network Around Pacific Can Forecast Arrival https://www.youtube.com/watch?v=SlwZzbGh7Cw

http://www.youtube.com/watch?v=9myoVB6m4Wg https://www.youtube.com/watch?v=SlwZzbGh7Cw http://www.msnbc.msn.com/id/26315908/#42142794