OPENING QUESTION:

Play around a bit HERE (which is to say explore that VERY cool interactive Washington Geological Information Portal)

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LEARNING TARGET: I will be able to use the Washington Geological Information Portal to evaluate potential earthquake effects in our area during today's class

WORDS O' THE DAY:

• Primary (P) Waves (travel through the Earth)
• Secondary (S) Waves (travel through the Earth)
• Surface Waves (travel along the Earth's surface)
• Compression Waves
• Transverse Waves
• Epicenter
• Focus

WORK O' THE DAY:

 

Using that site please find an earthquake with a magnitude greater than 4.0 that occurred within 10 miles (or so) of GHHS sometime in the last 25 years... Please find the magnitude AND the depth.

Also, please work with your group to determine what the size and color of each earthquake marker indicate.

Now let's take a look at THIS:

Notice that the data shown is given in MMI... what are those?

Now change the scenario to a 7.1 magnitude Tacoma Eq

If time permits, introduction to the MMI scale: