Earthquake Quizs

What are P Waves?

• Waves that only travel through solids.

• Secondary waves that follow P waves.

• Primary waves that travel through solids, liquids, and gases.

• Waves that are only detected by seismographs.

What is an earthquake?

• A volcanic eruption that causes ground shaking.

• The shaking and trembling that results from the sudden movement of the Earth’s crust.

• A weather phenomenon that causes strong winds.

• A type of tsunami caused by underwater landslides.

What is magnitude in terms of earthquakes?

• The distance from the epicenter to the surface.

• The strength of an earthquake. A magnitude 9 is 1,000,000 times stronger than a 3.

• The depth at which the earthquake occurs.

• The duration of the earthquake's shaking.

How many earthquakes occur per year?

• 500,000 per year

• 1,000,000 per year! Most earthquakes are too small to feel.

• 2,000,000 per year

• 100,000 per year

What is a spreading boundary (divergent)?

• Plates going in opposite directions, forming valleys.

• Plates colliding and forming mountains.

• Plates sliding past each other, causing earthquakes.

• Plates moving towards each other, creating trenches.

What are the 3 types of seismic waves?

• P Waves (primary waves), S Waves (secondary waves), and L Waves (surface waves)

• A Waves (acoustic waves), B Waves (bending waves), and C Waves (compressional waves)

• X Waves (transverse waves), Y Waves (longitudinal waves), and Z Waves (zonal waves)

• M Waves (magnetic waves), N Waves (normal waves), and O Waves (oscillatory waves)

What are seismic waves?

• Waves caused by earthquakes.

• Waves that travel through water.

• Waves produced by volcanic eruptions.

• Waves that occur in the atmosphere.

What is a fault boundary (transform)?

• Plates sliding past each other.

• Plates moving apart from each other.

• Plates colliding into each other.

• Plates rotating around a central point.

Why does California have more earthquakes?

• Because it's on 2 plates moving different ways.

• Because it has more volcanoes than other states.

• Because it is located near the equator.

• Because it has a higher population density.

What is the epicenter?

• The point on the Earth’s surface directly above the focus.

• The deepest part of an earthquake's origin.

• The location where seismic waves are first detected.

• The area with the most damage after an earthquake.