Seismographs (Earthquake Detection)

Revisit: Earthquakes!

And their hazards!

Poll

How are we today?

• Happy

• Sad

• Meh...

• Hungry

• Sleepy

Let's Begin...With a link :0

https://www.youtube.com/watch?v=6Jd8VO-6avU

Remember That:

• Earthquakes follow a Transform Plate Boundary.

• A result of the build up and release of stress on Earth's Crust.

How can we detect an Earthquake?

• The Seismograph

• Measures the shaking, or Ground Motion, that Seismic Waves produce.

• The Richter Scale runs from 0 and up.

• The Moment Magnitude Scale: Measures waves based on Quake's size.

Damage Report!

• Earthquakes have an Epicenter!

• Liquefication: When wet soil becomes more like a liquid than a solid.

• Landslides: Rapid downhill movement of soil, rocks, etc...

Multiple Choice

What are Seismographs used to measure?

• The number of Earthquakes.

• The length of an Earthquake.

• An Earthquake's Seismic Waves.

Multiple Choice

True or False: Does the Richter Scale have an upper limit?

• True

• False

What can Engineers do?

• Build better structures!

• In Picture: Hagia Sofia

What can we do?

• Have an escape plan

• If not, cover yourself, hold on, and wait!

• AVOID: Running, anything that's tall, or something that will fall.

Multiple Choice

What should YOU do if an Earthquake appears in West New York?

• Drop, Cover, and Wait !

• Stop, Drop, and Roll !

• Run for the Hills !

Open Ended

How was today's class? (Please, use complete sentences.)