Transcript - Putnam County CUSD 535

BY
CORRINA FRIEDRICH
&
LIVIA SANCHEZ
 AROUND
1912 GERMAN
METEOROLOGIST, Alfred
Wegener developed a
theory called continental
drift. He believed that
about 225 million years
ago a giant landmass
named Pangaea broke
apart to form the
continents as we know
them today.
 the
North American,
Juan de Fuca, and
Pacific plates affect
the U.S. It is also
possible that the
Coco’s and Caribbean
plates may also have a
minor affect on the U.S
as well.
 Putnam
has a low
hazard zone of 2-4.
What hazard zone
Putnam County is in is
light blue.
 The
most destructive
earthquake considered
was the Shaanxi
earthquake. It occurred
on the morning of
January 23, 1556 in
Shaanxi during the
Ming dynasty. Its
magnitude was 8.0 mg
and 830,000 people
died.



One is divergent plate
boundary (mid ocean ridge)
where plates are moving
away from each other and
new ocean floor is being
created
Convergent plate boundaries
(subduction zones) where
plates are moving towards
each other with one plate
being pulled down into the
atmosphere.
Transform boundaries
(transform fault) where
plates are sliding against
each other

Tsunamis are series’ of very
long ocean waves created
when a large body of water is
displaced. Tsunamis can be
generated by any
disturbance that displaces a
large amount of water
including earthquakes,
volcanic eruptions,
meteorites, or landslides into
the water or below its
surface. An unnoticed
tsunami wave can travel at
the speed of a commercial
jet plane. They travel much
slower in shallow costal
waters where their heights
increase dramatically.

The two types of
energy waves are
secondary ,and Primary
waves. Primary waves
travel first, going
through all three types
of matters (solid,
liquid, and gas) while
secondary waves come
second and only travel
through solids.
Secondary waves travel
slower. The fastest
type of waves are
Primary wave because
they travel first.
 This
table shows the
magnitude that a 7.2
earthquake produces 10
times more ground than a
6.2 earthquake, but it
releases about 32 times
more energy.
8 and higher
Average
Annually
1¹
7 - 7.9
15 ¹
6 - 6.9
134 ²
5 - 5.9
1319 ²
4 - 4.9
13,000
(estimated)
3 - 3.9
130,000
(estimated)
2 - 2.9
1,300,000
(estimated)
Magnitude
 Reflection
and
refraction seismology
can be used in
geophysical
exploration to locate
layers of varying
density which can be
used for example to
locate underground
hydrocarbons in the
oil and gas industry.
 The
scotia sea
because there was
three earthquakes
last week, also the
pacific Atlantic ridge
because it had three
also. The scotia sea
has it own plate so it
has many and the
pacific antarctic
because the two
plates are fight by
each other.

No, and it is unlikely
they will ever be able
to predict them.
Scientists have tried
many different ways of
predicting earthquakes,
but none have been
successful. On any
particular fault,
scientists know there
will be another
earthquake sometime
in the future, but they
have no way of telling
when it will happen.

Scientists use a method
called triangulation to
determmine where an
earthquake is. It is
called that because a
triangle has three sides
and it takes three
seismographs to locate
them. If you draw three
circles where it was by,
where they intersect is
where the earthquake
happened