Earthquakes Flashcards
1
Q
Name 2 secondary hazards caused by an earthquake.
A
- Tsunami
- Avalanche
- Mudslide
- Fires (due to burst gas pipes)
2
Q
What is the epicentre of an earthquake?
A
The point on the Earth’s surface that is directly above the focus of the earthquake. This is where the seismic waves are greatest.
3
Q
What is the focus of an earthquake?
A
The point of origin of an earthquake within the earth’s crust.
4
Q
What are seismic waves?
A
Thewavesof energy caused by the sudden breaking of rock within the Earth. They are the energy that travels through the earth and are recorded using seismometers.
