Earth Quakes Tectonics NOTES page 3 ©Mark Place,

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Presentation transcript:

Earth Quakes Tectonics NOTES page 3 ©Mark Place, 2007-2008 www.LearnEarthScience.com

Key Concepts & Questions What is the driving force behind crustal movement ?

Key Concepts & Questions Convection Currents in the Mantle

On to the next question:

Key Concepts & Questions What are the different types of earthquake waves? And how do they travel?

Key Concepts & Questions p-waves Travel Through Anything primary waves push-pull waves

Key Concepts & Questions s-waves Travels Through Solids Only secondary waves shear waves

On to the next question:

Key Concepts & Questions Where can most earthquake epicenters and volcanoes be found?

How does this compare with page 5 of the ESRTs?

Key Concepts & Questions at plate boundaries

On to the next question:

To find an earthquake’s epicenter a seismologist Key Concepts & Questions To find an earthquake’s epicenter a seismologist must have data from at least how many locations?

At least three

On to the next question:

Key Concepts & Questions How can scientists infer the properties of Earth’s interior?

by observing earthquake waves

On to the next question:

Key Concepts & Questions How do scientists know that Earth’s inner core is solid?

by the refraction of P-waves

On to the next question:

Key Concepts & Questions What can people do to protect themselves during an earthquake?

stand against interior wall get under desk/table stand against interior wall stay away from windows

On to the next question:

Key Concepts & Questions What is the Richter Scale and how is it used?

a measure of earthquake strength used to describe expected damage

Earth Quake Reference Table Questions

3600 kms If a p-wave arrives five minutes before the s-wave arrives, how many kilometers from the epicenter is a location? 3600 kms

4800 kms If a p-wave arrives at 12:10:00 and the s-wave arrives at 12:16:20, how many kilometers from the epicenter is a location? 4800 kms

9:04:20 An earthquake epicenter is 2600 kilometers from a location. If the p-wave arrives at 9:00:20, what time will the s-wave arrive? 9:04:20

1:13:20 An earthquake epicenter is 5200 kilometers from a location. If the s- wave arrives at 1:20:20, what time did the p-wave arrive? 1:13:20

3200 kms 4:40 later If a p-wave arrives 6 mins after an earthquake occurs, how many kilometers is the location from the epicenter? How long after the p- wave arrives will the s-wave arrive? 3200 kms 4:40 later