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Announcements

Announcements. Exam Weds. March 7, review March 5, here, 5 PM All of the classwork that hasn’t been picked up has been moved. Left-over Pinatubo video worksheets are on the table, unclaimed other things are in the lowest right-hand box. Today. Video on volcanic hazards

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Announcements

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  1. Announcements • Exam Weds. March 7, review March 5, here, 5 PM • All of the classwork that hasn’t been picked up has been moved. Left-over Pinatubo video worksheets are on the table, unclaimed other things are in the lowest right-hand box.

  2. Today • Video on volcanic hazards • Exercise on what makes a volcano likely (or not) to pose a significant hazard?

  3. A wee review…

  4. What is this feature? Pyroclastic flow on a stratovolcano Talus deposit occurring on a dome Maar eruption Lava flow

  5. This could be many things, but based on the landforms, what is most likely? The volcano is Mount St. Helens. • Ash-flow tuff • Lava flow • Debris-avalanche deposit • Pumice fall

  6. The video (Understanding Volcanic Hazards) • Seven kinds of hazards are discussed • Your job is to understand what kinds of hazards are more likely at what kinds of volcanoes. Specifically for this video, you need to (alone or with a friend) choose the most and least dangerous hazard and be able (on an exam, for example) state why you chose those.

  7. Exercise to understand volcanic hazards • Groups of 4-5 please…

  8. You have seen/heard about several kinds of volcanoes and several kinds of hazards… • You have/will get some information about a specific volcano. • shield volcano • stratovolcano • dome • If you have any sense of geography, that is very helpful!! • ALWAYS assume that if it happened before, it can happen again…but use your knowledge of the lifespan of your volcano type

  9. You will need to put together a reasonable scenario for these things (have one person for each) • the type of hazard likely from your volcano • other hazards likely to occur at the same time • the chances that the hazard will produce a disaster, given who lives where with respect to the volcano • an assessment of why people are living near the volcano • what are ALL the controls on the kind of volcano having the hazards it does • ASK if you feel you don’t have enough information! but use common sense. You may use the computers in the lab also.

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