In this week’s discussion, we’ll be exploring how prepared we are in the face of an impending EARTHQUAKE!
Since 2008, the 3rd Thursday in October has been International ShakeOut Day (see shakeout.org (Links to an external site.) for more information). This is a day where we can evaluate our emergency preparedness as individuals, institutions, and governments and participate in a Great ShakeOut Earthquake Drill. The ShakeOut is held in collaboration with the U.S. Geological Survey (USGS (Links to an external site.)), National Science Foundation (NSF (Links to an external site.)), the Federal Emergency Management Agency (FEMA (Links to an external site.)), and the Southern California Earthquake Center (SCEC (Links to an external site.)) — feel free to explore any of these websites for more information about earthquake preparedness.
The Earthquake Country Alliance (ECA (Links to an external site.)), which works with these organizations, started the Great ShakeOut in Southern California in 2008 and coordinates the participation of California organizations and individuals in the ShakeOut. We’ll be using the Earthquake Country website to learn more about how to personally prepare for earthquakes.
please respond to this prompt with the following information:
- Earthquake Country has identified seven steps that we can all take to prepare ourselves to survive and recover from a large earthquake. Go to https://www.earthquakecountry.org/sevensteps/ (Links to an external site.) to read about these seven steps.
- Choose from Step 1, 2, 3, or 4. Click on the link of the step you choose to learn even more.
- As you read, consider: how many of the suggested actions in this step have been taken for your family or home? What could you be doing better?
- Come up with a plan to improve your preparedness in this area. Divide your list into 1) actions you can take right now (no cost), 2) actions that will require purchases or further planning (low cost), and 3) actions that may have to wait (a bit more work or cost).
- Discuss your suggested plan with your family or roommates. If you live by yourself, feel free to discuss your plan with friends or other loved ones. Ask for feedback about what they think would be reasonable steps to take right now to help your household become safer.
- Share your finalized plan with your classmates. Give a timeline for completing some of the goals in your plan. Share any worries or concerns you have about following your preparedness plan (or earthquakes in general!).
once you finish the prompt please respond to the TWO other replies that I will send to you after you choose this question with the following content:
- How reasonable do you think their preparedness plan is?
- Do you have any suggestions? Are you able to address any of their worries or concerns?
- Feel free to offer advice, provide links to products or informative sites, or ask follow-up question
- Texture refers to the size, shape and arrangement of grains or other constituents within a rock. Textures 39 various textures in igneous rocks tell us • The how the rock formed. • And often where the rock formed! • See section 4.3, p. 100–103 in your book. Cooling rate • As magma cools, minerals slowly form. • This process is called crystallization. longer the crystallization time, the • The larger the minerals grow. small crystals imply that the magma / • So lava cooled quickly. 40 41 Texture & cooling rate rock is has mineral • This grains that are < 1 mm. that be coarse or • Would fine? this rock have cooled • Would slowly or quickly? it be volcanic or • Would plutonic? Texture & cooling rate 42 • This rock is has mineral grains that are > 1 mm. • Would that be coarse or fine? • Would this rock have cooled slowly or quickly? • Would it be volcanic or plutonic? Texture & cooling rate 43 • Extrusive igneous rocks cool quickly at or near Earth’s surface and are typically fine-grained (most crystals 1 mm) Other textures 44 and fine aren’t the only textures an • Coarse igneous rock can have. textures form from different • Different cooling histories, and other factors. Pegmatitic texture • A pegmatitic texture means the rock has very large crystals — it is extra coarse. very slowly, • Itandcooled had lots of volatiles (H2O, etc.) 45 46 Glassy texture opposite extreme is a rock with no • The crystals at all. This is a glassy texture. rocks cooled quickly, with few • These volatiles. Pumice Obsidian Scoria Vesicular texture 47 rocks such as the pumice and scoria • Volcanic on the previous slide have holes left by escaping volcanic gasses. holey (not Holy) • These rocks have a vesicular texture. grained and glassy rocks can be • Fine vesicular. Can coarse grained rocks be vesicular? 48 • • Think o
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