Earthquake

What is the term for an earthquake that occurs after the main shock?

• Foreshock

• Aftershock

• Mainshock

• Tremor

Which type of earthquake is caused by volcanic activity?

• Tectonic earthquake

• Volcanic earthquake

• Collapse earthquake

• Explosion earthquake

The 1906 San Francisco earthquake occurred along which fault line?

• San Andreas Fault

• New Madrid Fault

• Hayward Fault

• Cascadia Subduction Zone

What scale is commonly used to measure the magnitude of an earthquake?

• Richter Scale

• Beaufort Scale

• Fujita Scale

• Saffir-Simpson Scale

Which earthquake is known as the most powerful earthquake ever recorded?

• 1906 San Francisco Earthquake

• 1960 Valdivia Earthquake

• 2011 Tōhoku Earthquake

• 2004 Indian Ocean Earthquake

What is the name of the instrument used to detect and record earthquakes?

• Barometer

• Seismograph

• Anemometer

• Thermometer

Which type of earthquake is caused by the collapse of underground caverns or mines?

• Tectonic earthquake

• Volcanic earthquake

• Collapse earthquake

• Explosion earthquake

The 2011 Tōhoku earthquake and tsunami affected which country?

• China

• Japan

• Indonesia

• India

What does the term "epicenter" refer to in an earthquake?

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

• The point within the Earth where the earthquake starts

• The area of greatest damage

• The boundary between tectonic plates

Which scale measures the intensity of an earthquake based on its observed effects?

• Richter Scale

• Mercalli Intensity Scale

• Moment Magnitude Scale

• Kelvin Scale