Earthquake Science and History

The video discusses the catastrophic 1755 Lisbon earthquake, its impact on the city, and the varied responses from religious and scientific communities. It highlights the innovative reconstruction efforts led by the Marquis de Pombal, which included earthquake-resistant buildings and modern urban planning. The video also explores the historical understanding of earthquakes and the development of seismometers.

What significant event occurred in Lisbon on November 1st, 1755?

• A devastating fire

• A great flood

• A massive earthquake

• A volcanic eruption

What percentage of Lisbon's buildings were destroyed by the earthquake?

• 85%

• 50%

• 60%

• 90%

How did many theologians interpret the earthquake?

• As a scientific phenomenon

• As a punishment from God

• As a natural disaster

• As a random event

Who led the reconstruction efforts in Lisbon after the earthquake?

• The Pope

• The Marquis of Pombal

• The Mayor of Lisbon

• The King of Portugal

What urban planning innovation was introduced in Lisbon after the earthquake?

• Circular streets

• Underground tunnels

• A gridiron system

• Narrow alleys

What was the purpose of the first seismometer invented by Chang Heng?

• To detect the direction of earthquakes

• To measure the magnitude of earthquakes

• To predict earthquakes

• To prevent earthquakes

What did the first seismometer use to indicate the direction of an earthquake?

• Falling balls

• Sound waves

• Water levels

• Pendulums

What causes earthquakes according to modern science?

• Volcanic eruptions

• Tectonic plate collisions

• Weather changes

• Magnetic field shifts

What is a major challenge in earthquake science today?

• Predicting the exact time and location

• Measuring earthquake magnitude

• Building earthquake-resistant structures

• Understanding tectonic plates

What is the term for the devices used to measure earthquakes today?

• Seismographs

• Barometers

• Thermometers

• Anemometers