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This brief tutorial and activity will provide younger students with some idea how earthquakes occur. The text explains how strain builds up along a fault until the rock breaks, releasing energy in the form of seismic waves. This concept is reinforced by a simple experiment in which the students break a foam rubber block in half and then try to slide the broken halves past each other.
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This
portal
provides
access
to
a
variety
of
resources
explaining
the
methods
used
to
determine
the
location
and
depth
of
an
earthquake.
The
resources
include
the
'Travel
Time
Information
and
Calculator',
an
online
tool
that
lets
users
choose
a
seismic
station
location
and
a
recent
earthquake,
and
see
how
long
it
takes
different
types
of
seismic
waves
to
travel
from
the
epicenter
to
their
locations.
...
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This
set
of
lecture
notes
covers
several
topics
relating
to
the
earth's
interior.
Seismic
waves
and
the
earth's
internal
structure
are
discussed.
Several
mechanisms
for
the
origin
of
magma
are
offered.
These
lecture
notes
are
in
outline
form
with
definitions
and
instructive
diagrams.
This
resource
is
part
of
the
Teaching
Petrology
collection.
http:/
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Increasingly,
scientists
are
discovering
ways
to
predict
and
prevent
loss
of
life
associated
with
earthquakes.
This
lesson
will
help
students
to
understand
earthquakes.
The
first
portion
consists
of
an
online
investigation
in
which
students
read
news
stories
about
recent
earthquakes
and
their
effects.
Then,
they
perform
an
activity
in
which
seismic
waves
(P
and
S
waves)
are
simulated
using
a
slinky
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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This website, from the 1998 PBS "Savage Earth" series, shows seismic waves from an earthquake that took place in Bolivia in 1994. The animation illustrates the way the earth's surface, core/
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SeisMac
is
a
free
Mac
OS
X
application
that
turns
MacBook
or
MacBook
Pro
laptops
into
seismographs.
It
uses
the
Sudden
Motion
Sensor
(accelerometer)
that
these
machines
are
equipped
with
to
create
and
display
real-time,
three-axis
acceleration
graphs
(seismograms).
The
resizable,
real-time
scrolling
display
lets
students
see
the
seismic
waves
from
tapping
their
toes
on
the
floor,
lay
the
laptop
on
...
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This
unit
provides
an
introduction
for
younger
students
on
earthquakes,
volcanoes,
and
how
they
are
related.
Topics
include
evidence
of
continental
drift,
types
of
plate
boundaries,
types
of
seismic
waves,
and
how
to
calculate
the
distance
to
the
epicenter
of
an
earthquake.
There
is
also
information
on
how
earthquake
magnitude
and
intensity
are
measured,
and
how
seismic
waves
can
reveal
the
Earth's
...
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This
website
contains
class
notes
from
a
Geology
101
(physical
geology)
course.
It
discusses
the
composition
and
structure
of
the
Earth's
interior.
Each
layer,
the
inner
core,
outer
core,
mantle,
and
crust,
is
covered.
Details
about
each
layer
explain
their
composition,
temperature,
depth,
and
state.
Also
covered
is
how
scientists
discovered
what
the
interior
of
the
Earth
is
made
of
through
the
use
...
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This resource references :
The Modified Mercalli Scale of Earthquake Intensity -
http:/
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In
1755,
when
a
deadly
earthquake
struck
the
city
of
Lisbon,
no
one
understood
what
could
cause
the
ground
to
shake
as
it
did.
Observations
of
residents
at
the
time
indicated
that
the
quake
had
delivered
two
distinct
types
of
vibrations.
This
video
segment
describes
the
history
of
seismology.
Topics
include
the
two
main
types
of
seismic
waves
(S-
and
P-waves),
how
a
seismograph
works,
and
how
seismograph
...
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Choosing & Using this resource...
Educational standards associated with this resource:
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This
collection
of
earthquake
and
seismology
links
is
grouped
in
categories
such
as
current
earthquake
information,
southeastern
and
central
U.S.
earthquake
information,
daily
seismograms,
create
your
own
seismograms,
building
seismographs,
and
background
information
on
earthquakes.
A
second
group
of
sites
includes
photos
of
earthquake
damage,
the
Princeton
Earth
Physics
Project
(PEPP),
and
teacher
...
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