• What is an earthquake? a sudden violent shaking of theground, typically causing great
• destruction, as a result
• of movements within the earth's crust or volcanic action.
• What causes them? When the stress on the edge overcomes the friction, there is an
• earthquake
• that releases energy in waves that travel through the earth's crust and cause the ...
• Have you ever experienced an earthquake?
• What damage could an earthquake cause?