Earthquakes and Tsunamis Flashcards
1
Q
what is a P wave
A
P waves are the first waves to arrive at a seismograph. P waves are the fastest seismic waves and can move through solid, liquid, or gas.
2
Q
what is an S wave
A
S-waves are lateral waves that move side to side as a sine wave perpendicular to the direction of the wave.
3
Q
what is an epicenter
A
the part of the earth’s surface directly above the starting point of an earthquake.
