Causes & Locations of Earthquakes
What causes earthquakes?
Plate movements or fault lines
What is the Richter scale?
The Richter scale is a way of quantifying the magnitude, or strength, of earthquakes.
What is a tsunami?
A series of ocean waves caused by underwater land movement, usually very destructive.
Earthquakes occur when ___________ that had built up in the earth's crust is released.
Energy
What is another name for shock waves?
Seismic waves.
How are most tsunamis generated?
Most tsunamis are generated by undersea earthquakes. The sudden vertical displacement of the ocean floor during an earthquake can displace a large volume of water, creating a series of waves.
At what type of fault do you experience Earthquakes?
A strike slip fault
What is meant by magnitude in relation to earthquakes?
It's power or destructive force.
What is a second cause for a tsunami?
A landslide
Besides a lot of damage what can earthquakes cause?
Tsunamis
What is the epicentre of a quake?
Epicenter is the location on the surface of the Earth directly above where the earthquake starts.
It is a Japanese word. What does the word tsunami literally mean?
Harbour wave.
What and where is the San Andreas Fault line?
The San Andreas Fault is a place where two tectonic plates touch, the North American and Pacific Plates. It is located in the USA, primarily California.
Data from how many seismograph stations are needed to locate the epicenter of an earthquake?
Three
Where was the most destructive tsunami?
The Indian Ocean off Indonesia.