ANNOUNCEMENTS First hour exam Wednesday 2/7; review session Monday 2/5 5.00 - 6.00, here Happy Groundhog’s Day, also Candlemas, and various other names.

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Presentation transcript:

ANNOUNCEMENTS First hour exam Wednesday 2/7; review session Monday 2/ , here Happy Groundhog’s Day, also Candlemas, and various other names.

ANNOUNCEMENTS I STILL need PINs from: Boykin, Buchanan, Civetta, Clausen, Dickason, Duvick, Escalante, Fix, Gonzalez, Hunt, Hurst, Jimerfield, Jones, Krupoff, Magaldi, Mayon, Meehan, Moehr, Nelson, Rawls, Sillin, Slade, Watson me your PIN please (painless, and lets you take the exam, and so pass the class)

TODAY Terminology of earthquakes –focus –epicenter –fault trace (= strike line) –fault plane (has a strike and a dip) –magnitude –intensity The video you know these

Since I know everyone totally gets it now… Clickers please…

Guatemala, 1976 What kind of fault movement warped this row of young corn? 1.left-lateral strike-slip movement 2.right-lateral strike-slip movement 3.normal dip-slip movement 4.reverse dip-slip movement

The other two terms Magnitude: how big Intensity: how damaging

From, Science Made Stupid

The video… is a bit sappy, but has great information, so pay attention to –the different hazards discussed –the concept of seismic gap, and –earthquake prediction complete the worksheet EVERYTHING in class (including a video, hint, hint) is fair game for the exam

Clickers please…(wake up)

A seismic gap that exists near San Francisco suggests that 1.an earthquake is likely to occur there in the near/intermediate future 2.the stress in the Earth’s crust has been relieved by large and small earthquakes, leaving a gap in the zone of most danger. 3.scientists are able to image where the tectonic plates are in contact, and there is a gap between them 4.after a certain amount of time, movement on the San Andreas Fault may become left lateral

A seismic gap that exists near San Francisco suggests that 1.An earthquake is likely to occur there in the near/intermediate future 2.The stress in the Earth’s crust has been relieved by large and small earthquakes, leaving a gap in the zone of most danger. 3.Scientists are able to image where the tectonic plates are in contact, and there is a gap between them 4.After a certain amount of time, movement on the San Andreas Fault may become left lateral If you had a second-most likely choice, please vote again

An earthquake with M6.2 occurred about 50 km from this area. If there were building all along this profile, where did the most damage probably occur? A C D Pieces of other rocks, somewhat consolidated Need a hammer to break either of these B