Earthquake

The video explains earthquakes as sudden ground shaking caused by tectonic plate movements. It details tectonic plates as pieces of Earth's crust that move along fault lines, sometimes causing earthquakes. The San Andreas fault is a notable example. Earthquakes can also occur near volcanoes. The Richter scale measures earthquake strength, with the strongest recorded in Chile in 1960 at 9.5. Annually, 500,000 earthquakes occur, but only a fraction are felt or cause damage.

What primarily causes an earthquake?

• Heavy rainfall

• Movement of tectonic plates

• Strong winds

• Volcanic eruptions

What are tectonic plates?

• Layers of the atmosphere

• Large pieces of Earth's crust

• Types of rocks

• Ocean currents

Where do earthquakes typically occur?

• In the middle of tectonic plates

• Along fault lines

• In the ocean

• In the desert

How is the strength of an earthquake measured?

• On the Richter scale

• In degrees

• In kilometers

• In pounds

What is the significance of the Richter scale?

• It measures the speed of tectonic plates

• It measures the depth of the ocean

• It measures the temperature of the Earth

• It measures the magnitude of earthquakes