How do Earthquakes Happen /What is an Earthquake

The video tutorial explains earthquakes, their causes, and effects. It covers the role of tectonic plates and different types of plate boundaries, such as divergent, convergent, and transform. The tutorial also discusses subduction zones, where the most violent earthquakes occur, and how these can lead to tsunamis. Key examples include the Gorka earthquake in Nepal and a record tsunami in Alaska.

What is the estimated number of earthquakes that occur on Earth each year?

• About 10,000

• About 100,000

• About 1 million

• About 500,000

Which type of plate boundary is characterized by plates moving away from each other?

• Subduction

• Convergent

• Transform

• Divergent

What is a well-known example of a transform boundary?

• The Himalayas

• The San Andreas Fault

• The Mid-Atlantic Ridge

• The Andes Mountains

Where do the most violent earthquakes typically occur?

• In the middle of tectonic plates

• At transform boundaries

• In subduction zones

• At divergent boundaries

What natural disaster can be triggered by an earthquake occurring on the ocean floor?

• Tsunami

• Volcanic eruption

• Tornado

• Hurricane