Earthquakes

Where do earthquakes occur?

• On Islands

• ONLY in the Ring of Fire

• Along Faults

Why are their so many volcanoes and Earthquakes on the Ring of Fire?

• It's the location of most of the Earth's Subduction Zones

• The high amount of movement of the tectonic plates

• All of the above and/or below!

Which describes a normal fault?

• Caused by stress that presses rocks together. Occurs at Convergent Boundaries.

• Caused by stress that pulls rocks apart. Occurs at Divergent Plate Boundaries.

• Caused by stress that pushes blocks of rock horizontally. Occurs at Transform Boundaries.

Which describes a Reverse fault?

• Caused by stress that presses rocks together. Occurs at Convergent Boundaries.

• Caused by stress that pulls rocks apart. Occurs at Divergent Plate Boundaries.

• Caused by stress that pushes blocks of rock horizontally. Occurs at Transform Boundaries.

Which describes a Strike Slip fault?

• Caused by stress that presses rocks together. Occurs at Convergent Boundaries.

• Caused by stress that pulls rocks apart. Occurs at Divergent Plate Boundaries.

• Caused by stress that pushes blocks of rock horizontally. Occurs at Transform Boundaries.

What is the FOCUS of an Earthquake?

• The point on earth's surface directly above the Epicenter.

• A type of wave that an Earthquake produces.

• The point underground where rocks first begin to move.

What is the Epicenter of an Earthquake?

• The point where rocks first begin to move undergound?

• The point on Earth's surface directly above the focus?

• A type of wave an Earthquake produces

Which of the following describes a Primary Wave?

• move along earth’s surface, not through its interior. Slowest moving wave.

• fastest and arrive first at the epicenter. Can travel through liquids, solids, and gases.

• travel through Earth’s interior at ½ the speed of Primary Waves. Can NOT travel through liquids.

Which of the following describes a Surface Wave?

• move along earth’s surface, not through its interior. Slowest moving wave.

• fastest and arrive first at the epicenter. Can travel through liquids, solids, and gases.

• travel through Earth’s interior at ½ the speed of Primary Waves. Can NOT travel through liquids.

Which of the following describes a Secondary Wave?

• move along earth’s surface, not through its interior. Slowest moving wave.

• fastest and arrive first at the epicenter. Can travel through liquids, solids, and gases.

• travel through Earth’s interior at ½ the speed of Primary Waves. Can NOT travel through liquids.