Earthquake Causes and Effects

The video explains how scientists reconstruct earthquake events, focusing on the San Andreas Fault. It describes the origin of the earthquake, the tension between tectonic plates, and the mechanics of earthquakes, including landscape shifts and surface shaking. The video also covers the rupture's travel along the fault and how the rupture area and slip amount determine the earthquake's magnitude.

Where did the earthquake event begin?

• On the ocean surface

• Along the San Andreas Fault

• In the mountains

• In the city center

What causes an earthquake to occur?

• Gradual movement of tectonic plates

• Sudden slip of tectonic plates

• Volcanic eruption

• Tidal waves

What is the result of the tectonic plates slipping past each other?

• Formation of new land

• Creation of a tsunami

• Volcanic eruption

• Intense surface shaking

How long does the rupture travel along the fault?

• 120 seconds

• 90 seconds

• 60 seconds

• 30 seconds

What factors determine the magnitude of an earthquake?

• The time of day

• The distance from the epicenter

• The area of the rupture and the amount of slip

• The depth of the ocean