EarthquakesBy Donny Qualters

What is an earthquake?

An earthquake is used to describe a sudden slip on a fault, and as a result the ground shaking and radiating seismic energy caused by the slip

Caused by volcanic activity, Caused by other sudden stress changes in the

earth.

What causes earthquakes? Earthquakes are caused when tectonic plates

move past each other causing stress.

How do earthquakes form? Earthquakes are formed by the

movement of the Earth's plates. When a plate squeezes or stretches too much, huge rocks are formed at the edges, and these rocks can move with a lot of force, which causes an earthquake.

Parts of an earthquake The two major parts of an earthquake

are the epicenter and the focus Focus – The point inside the Earth where

an earthquake begins Epicenter – The point on Earth’s surface

above the focus

Most destructive Earthquake The Great San Francisco Earthquake of

1906 was the most destructive earthquake as it caused $524 million in damage and killed 3,000 people.

How are earthquakes measured? Earthquakes are measured by the

Richter scale

Question What causes earthquakes?A- The epicenter and the focusB- The mantleC- When tectonic plates move past each other causing stress.

Question What was the most destructive

earthquake?A- The Great San Francisco EarthquakeB- The Haiti earthquakeC- Chile Earthquake

Question How are earthquakes measured?A- Richter scaleB- Mercalli scaleC- Interval scale

The End Thanks for watching!