Transcript Earthquakes Review

Earthquakes
Review
Which seismic
waves are the
fastest?
P waves
Which seismic
waves are the
first to be
recorded?
P waves
Which seismic
waves are the
second to be
recorded?
S waves
Which seismic waves can
only travel through
solids?
S waves
Which seismic
waves are the
slowest?
L waves
Which seismic
waves travel on
the surface?
L waves
What is the
boundary between
the crust and the
mantle due to the
change of speed of
seismic waves?
Moho
What are the areas
called where
neither S nor P
waves can be
detected?
Shadow zones
What is the theory
that says energy
builds up on each
side of a fault and
the rocks move
slowly and then
spring back to their
original shape?
Elastic rebound
theory
What are small
tremors that occur
after the first
release of energy?
aftershocks
What is the area
where the slippage
first occurs inside
the earth?
focus
What is the point
on earth’s surface
directly above the
focus?
epicenter
What are the
three
classifications of
foci?
Shallow, intermediate,
and deep
What are the three major
earthquake zones?
1. Pacific Ring of Fire
2. Mid-ocean ridges
3. Eurasian –
Mediterranean mt.
belt
What is the name of
the fault in California
where the Pacific
plate and North
American plate slide
past each other?
San Andreas Fault
(technically it’s the N.
American plate and the
Juan de Fuca plate)
What is the device
used to record
earthquakes?
Seismograph
How many stations
are needed to
locate an
earthquake?
three
Which scale
measures the
magnitude or the
amount of energy
released from an
earthquake?
Richter Scale
What are the
numbers for the
Richter scale?
Arabic Numerals
They begin a 1-2 and
it is an open-ended
scale, based on the
seismograph’s
reading.
Which scale
measures the
intensity or
amount of damage
from an
earthquake?
Mercalli
What are the
numbers for the
Mercalli Scale?
Roman numerals
What can be
generated from an
earthquake with an
epicenter on the
ocean floor?
Tsunami