place inside the earth where earthquake start
instrument that defects and measures earthquakes
fastest earthquake waves
second earthquake waves to be recorded at a seismograph station
sudden strong movement of the earth's crust
place on the surface of the earth directly above the focus
volcanic cone made up of layers of hardened lava
ocean wave caused by an earthguake
scale that measures the energy released by an earthquake
volcanic cone made up of alternating layers of lava and rock particles.
ring of fire
mag or earthquakes and volcanic zone that almost forms a circle around the ...
break in of rock
break in the earth's crust which movement has occurred.
funnel-shaped pit at the top of a volcanic come
physical feature of the earth's surface
distance above or below sea level
magma on the earth's surface
movement of magma or inside the earth
opening from which lava flows
volcanic cone made up of rock particles dust and ash
vent and the pile of volcanic materials around the vent