Earthquakes and Typhoons Quiz

What is an earthquake?

• A volcanic eruption

• A sudden shaking of the ground

• A strong wind

• A flood

What causes earthquakes?

• Solar flares

• Movements of tectonic plates

• Heavy rainfall

• Tidal waves

Describe the difference between the focus and the epicenter of an earthquake.

• Focus is where the earthquake is felt strongest, epicenter is the underground point of origin

• Focus is the underground point of origin, epicenter is where the earthquake is felt strongest

• Focus and epicenter are the same

• Epicenter is located deep in the ocean

What are seismic waves?

• Ocean waves caused by earthquakes

• Waves of energy that travel through the Earth

• Waves of sound in the atmosphere

• Light waves

How is the intensity of an earthquake measured?

• Richter Scale

• Beaufort Scale

• Saffir-Simpson Scale

• Fujita Scale

Explain the Richter Scale.

• Measures the depth of an earthquake

• Measures the magnitude of an earthquake

• Measures the speed of seismic waves

• Measures the area affected by an earthquake

What is a seismograph, and how does it work?

• An instrument that measures wind speed

• An instrument that detects and records earthquakes

• An instrument that measures temperature

• An instrument that detects tsunamis

What are aftershocks?

• Small earthquakes that follow the main shock

• Large earthquakes that precede the main shock

• Seismic waves detected in the ocean

• Unusual weather patterns following an earthquake

Describe the effects of earthquakes on buildings and structures.

• Strengthens buildings

• Causes flooding

• Can cause buildings to collapse

• Melts roads

What should you do during an earthquake to stay safe?

• Run outside immediately

• Stand under a doorway or take cover under sturdy furniture

• Stand next to windows

• Light a candle