earthquakes Crossword

the study of earthquakes
the bending, tilting and breaking of the earths crust the change in the shape of rock in response to stress
the sudden return of elastically deformed rock to its undeformed shape
a wave of energy that travels through the earth away from an earthquake in all directions
a seismic wave that causes particles of rock to move in a back and forth direction
a seismic wave that causes particles of rock to move in a side to side direction
an instrument that records vibrations in the ground and determines the location and strength of an earthquake
the point on earths surface directly above an earthquakes starting point
the point along a fault at which the first motion of an earthquake occurs
a hypothesis that is based on the idea that a major earthquake is more likely to occur along the part of an active fault where no earthquakes have occurred for a certain period of time
an area along a fault where relatively few earthquakes have occurred recently but where strong earthquakes have occurred there in the past
a tracing of earthquake motion that is created by a seismograph
the zone of volcanic and earthquake activity surrounding the Pacific Ocean.
helps prevent waterlines and gas lines from breaking in a earthquake