Earthquakes

What is an earthquake?

Drifting plates

The San Francisco earthquake

Seismic waves

Earthquake scales

What happens during an earthquake?

The Armenian earthquake of 1988

Earthquake and fire in Tokyo

The Kobe earthquake

Sinking into the earth

The Mexico City earthquake

Tsunamis

Japanese earthquake and tsunami

The Lisbon earthquake of 1755

Landslides and floods

Avalanche in the andes

The Tangshan earthquake

An earthquake in the Himalayas

The Chilean earthquake

Monitoring and predicting earthquakes

Sichuan earthquake

Preparing for earthquakes

Haiti earthquake.