Earthquake Basics

What is the main cause of earthquakes?

• Alien invasions

• Movement of tectonic plates along faults

• Global warming

• Volcanic eruptions

Which natural disaster can be triggered by earthquakes in the ocean?

• Hurricanes

• Blizzards

• Tsunamis

• Volcanic eruptions

How do plate tectonics contribute to the occurrence of earthquakes?

• Plate tectonics cause earthquakes by the movement of tectonic plates along faults.

• Earthquakes are caused by plate tectonics due to changes in atmospheric pressure.

• Plate tectonics create earthquakes by volcanic eruptions.

• The occurrence of earthquakes is a result of plate tectonics interacting with ocean currents.

Why is it important for buildings to adhere to strict building codes in earthquake-prone areas?

• To ensure structures can withstand earthquake forces and reduce the risk of collapse.

• To make buildings more aesthetically pleasing

• To allow for easier demolition after an earthquake

• To increase construction costs unnecessarily

What are seismic waves?

• The point beneath the Earth's surface at which rock under stress breaks and triggers an earthquake

• Energy released by an earthquake in waves or vibrations.

• The point on the surface directly above the point at which an earthquake occurs.

• The strength of an earthquake.

How can tsunamis be generated by underwater earthquakes?

• Underwater earthquakes displace water, creating waves that develop into tsunamis.

• Underwater earthquakes generate strong winds that push water, leading to tsunamis.

• Underwater earthquakes create a vacuum that sucks in water, causing tsunamis.

• Underwater earthquakes release toxic gases that trigger tsunamis.

This is a region in the earth's crust that is broken and where movement occurs.

• Fault

• Focus

• Epicenter

• Seismic waves

How can retrofitting buildings help reduce the effects of earthquakes?

• Retrofitting buildings can help reduce the effects of earthquakes by making structures more resistant to seismic activity.

• Planting more trees around buildings

• Painting buildings in bright colors

• Adding more windows to buildings

What are some common effects of earthquakes on infrastructure and communities?

• Increase in wildlife population

• Enhanced internet connectivity

• Building collapses, road and bridge damage, disruption of utilities, communication breakdowns, displacement of people, injuries, loss of life

• Improved air quality