It is not my fault
The crack in the earth's crust where stress is suddenly released causing an earthquake.
What is a fault?
These seismic waves can travel through all of the earth's layers and are the fastest.
What are P-waves (Primary waves)?
The point below the surface where energy is release in an earthquake
What is the focus?
This is the name given to the most common scale used to measure an Earthquake's magnitude.
What is the Richter Scale?
Earthquakes are caused when too much of this has built up in rocks and they can no longer handle it.
What is stress?
At this type of fault, tectonic plates scrape past each other at a transform boundary.
What is a strike-slip fault
These seismic waves cannot travel through the liquid outer core of the earth and arrive after P waves.
What are S-waves (Secondary waves)?
The name of the location directly above the focus.
What is the epicenter?
This instrument constantly records ground movement in the earth.
What is a seismograph?
A wall of water created when an earthquake, usually a destructive margin, causes displacement of the ocean.
What is a Tsunami?
These seismic waves usually cause the most damage.
What are surface waves?
Stresses that act to pull an object or substance apart
What is tension?
How many seismometer stations are required to locate an earthquakes epicenter?
3
The process in which shaking of the ground caused by an earthquake causes soil to temporarily become a liquid.
What is liquefaction?
At this type of fault, the hanging wall slides upwards in relation to the other one as a result of them being pushed together.
What is a Reverse Fault?
This type of fault has the most frequent earthquakes
What is Strike-Slip?
Stresses that act in opposite directions on different parts of the same object or substance
What is shear?
This fault causes the strongest earthquakes
What is a reverse fault?
To calculate the distance to the epicenter using a seismogram, you need to first find the time difference between the arrival of the P and S wave and then ......
Look up distance on the time-distance chart.