It is not my fault
These seismic waves can travel through all of the earth's layers.
What are P-waves (Primary waves)?
What we call the actual place of movement, that is where the rock actually slips in an earthquake.
What is the focus?
Earthquakes are caused when too much of this has built up in rocks and they can no longer handle it.
What is stress?
S-waves cannot travel through what state of matter?
What is liquids?
This instrument constantly records ground movement in the earth.
What is a seismometer?
These seismic waves occur on the surface and usually cause the most damage and have these two names.
What are Rayleigh and Love waves?
85 % of earthquakes on earth occur in this region.
What is the Circum-Pacific belt (or the Ring of Fire)?
Most injuries and deaths from an earthquake occur from this factor.
What are collapse of buildings?
This type of fault is found where tension occurs and the footwall slides up.
What is a Normal Fault?
a series of low-frequency shock waves, somewhat like sound waves, traveling through the earth as a result of crustal movement.
What are earthquakes?
During an earthquake, the most damage occurs close to this point.
What is at the epicenter?
A seismic center closest to this location will detect seismic waves first.
What is the epicenter?
The largest tsunamis are created by this phenomenon.
What are landslides?
At a reverse fault, this block slides up.
What is the hanging wall?
This is one of the three things that scientists look for when trying to predict the likelihood of an earthquake occurring in an area.
What is the history of earthquakes in that area, the accumulated strain on the fault, and if the fault has a seismic gap?
The Richter scale uses this measurement to determine the magnitude of the earthquake.
What is the size of the wave recorded on the seismometer?
The largest earthquake ever recorded occurred in this country.
What is Chile?
At convergent boundaries between oceans and continents, this feature occurs that often produced violent earthquakes and tsunamis
What is a subduction?
Forces or stresses that act to squeeze or crush an object or substance
What is compression?
This happens to P and S waves as they get farther from the epicenter.
What is get farther apart?
The Modified Mercalli scale measures this.
What is earthquake intensity?
The elastic rebound theory states this happens to rock when the stress is released in an earthquake
What is snap back into place
A oblique fault has movement in these directions.
What is a horizontal and vertical?
forces or stresses that act to pull an object or substance apart
What is tension?
Early warning systems using P and S wave arrival times are not effective if you are where?
What is close to the epicenter?
An earthquake that is 9 on the Richter scale is this many times more powerful than a 2.
What is the 10,000,000?
The safest place you can be in an earthquake.
What is outside away from buildings.