french Flashcards
what geological event that occurs when tectonic plates are colliding or sliding past eachother
an earthquake
what is term for the point on the earths surface directly above an earthquake orgin
the epicenter
what is the name of the point within the earth where an earthquake starts
the focus
what are the smaller tremors that follow an earthquake called
aftershoke
what instrument measures the strentgh or force of an earthquake
a seismograph
what instrument measures the damage caused by an earthquake
the mercalli scale
which scale measure
the richer scale
what are the waves of seismic energy that spread out from the earthquakes focus called
tremors
what can aftershock potentially cause to already damaged buildings
collapse
on the richer scale , what number represents the weakest earthquake
1
what is the term for the movement of soil, rock, or mud down a slope due to gravity
mass movement
what is the name given to loose material that moves during mass movement
regolith
list one slow and one fast of mass movement
slow: soil creep fast : avalanches
how does human activity potentially influence mass movement
by cutting into hillside for rode’s or rail way creating steep and unstable slopes.
what role does vegetation play in mass movement
vegetation roots help bind regolith slowing down mass movement
