Magnitude
When an earthquake is reported on the news, reporters often refer to its.
Indicates size of a seismic wave.
Amplitude.
Measures the amount of damage from an earthquake.
Modified mercalli scale
Accounts for the magnitude, size of the fault rupture, amount of movement along the fault and the rocks stiffness.
Moment magnitude scale.
Based on the largest seismic waves made by an earthquake
Richter scale
What two factors determine an areas risk for earthquake activity
History of earthquakes and amount of strain in accumulation
The amount of energy released in an earthquake
Magnitude
The Richter scale is a numerical scale used to describe an Earthquakes
Magnitude
Each whole number increases on the Richter scale corresponds to a 32- fold increase in
Seismic energy
The moment magnitude scale takes into account the size of an earthquakes
Fault rupture
The time an earthquake occurred can be estimated from the
Seismic wave size
The amount of damage done to structures by an earthquake is the earthquakes
Intensity
The modified mercalli scale measures an earthquakes
Probability
The modified mercalli scale ranges from
1-12
Earthquakes intensity depends primarily on the height of
Surface waves
As the distance from a quakes epicenter increases
Intensity decreases
Maximum earthquake intensity is usually found at the earthquakes
Epicenter
One factor that determines the strength of an earthquake is the depth of the
Focus