Natural Disasters: Earthquakes

What is an earthquake?

• An earthquake is a sudden and violent shaking of the ground.

• An earthquake is a slow and gradual shift of the Earth's crust.

• An earthquake is caused by the movement of tectonic plates.

• An earthquake is a result of volcanic activity.

What causes earthquakes?

• Meteorite impacts

• Sudden release of energy in the Earth's crust

• Tectonic plate movement

• Volcanic eruptions

What is the Richter scale used for?

• determining the temperature of a room

• magnitude of earthquakes

• calculating the distance between two cities

• measuring wind speed

How are earthquakes measured?

• Seismographs and Richter scale

• Thermometers and Celsius scale

• Barometers and Beaufort scale

• Tape measures and Inches scale

What are the primary effects of an earthquake?

• tsunamis, volcanic eruptions, and hurricanes

• landslides, avalanches, and floods

• ground shaking, surface rupture, and ground displacement

• droughts, wildfires, and heatwaves

What are the secondary effects of an earthquake?

• landslides, tsunamis, fires, and aftershocks

• hurricanes, tornadoes, and blizzards

• droughts, floods, and heatwaves

• volcanic eruptions, hailstorms, and lightning strikes

What are some safety measures to take during an earthquake?

• Drop, Cover, and Hold On; Stay away from windows, glass, and heavy furniture; Stay indoors until the shaking stops; If outside, move to an open area away from buildings, trees, streetlights, and utility wires; If in a vehicle, pull over to a safe location and stay inside; Have an emergency kit ready with essential supplies.

• Drive to a nearby building for safety

• Stand near a window to assess the situation

• Run outside and find shelter under a tree

What is the difference between an earthquake's epicenter and its focus?

• The epicenter is the point on the Earth's surface directly above the focus.

• The epicenter is the point on the Earth's surface closest to the focus.

• The epicenter is the point on the Earth's surface farthest from the focus.

• The epicenter and the focus are the same thing.

What are some famous earthquakes in history?

• 1906 San Francisco earthquake, 2011 Tohoku earthquake, 2004 Indian Ocean earthquake

• 1964 Alaska earthquake

• 2010 Haiti earthquake

• 1994 Northridge earthquake

How can we prepare for an earthquake?

• To prepare for an earthquake, you should jump out of a window

• To prepare for an earthquake, you can create an emergency plan, secure furniture, identify safe spots, prepare an emergency kit, educate yourself, and stay informed.

• To prepare for an earthquake, you should stand near tall buildings

• To prepare for an earthquake, you should ignore evacuation orders