Transcript Diapositiva 1

EARTHQUAKES
EARTHQUAKES
DEFINITION:
EARTHQUAKES
DEFINITION: a violent trembling of the earth’s surface
DEFINITION: a violent trembling of the earth’s surface
EARTHQUAKES
CONSEQUENCES:
DEFINITION: a violent trembling of the earth’s surface
EARTHQUAKES
CONSEQUENCES: buildings destroyed, loss of lives…
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
STUDYING EARTHQUAKES:
Forces
from the
interior
Movement
of tectonic
plates
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
They report the energy
Richter scale or
magnitude
1, 2, 3, 4, 5, 6…
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
Depending on damages
Mercalli scale or intensity
I, II, III, IV, V, VI…. XII
They report the energy
Richter scale or
magnitude
1, 2, 3, 4, 5, 6…
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
Depending on damages
Mercalli scale or intensity
I, II, III, IV, V, VI…. XII
They report the energy
Richter scale or
magnitude
1, 2, 3, 4, 5, 6…
Two scales to measure earthquakes
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
Depending on damages
Mercalli scale or intensity
I, II, III, IV, V, VI…. XII
They report the energy
Richter scale or
magnitude
1, 2, 3, 4, 5, 6…
Two scales to measure earthquakes
PREDICTION
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
Depending on damages
Mercalli scale or intensity
I, II, III, IV, V, VI…. XII
They report the energy
Richter scale or
magnitude
1, 2, 3, 4, 5, 6…
Two scales to measure earthquakes
PREDICTION
Where?
When?
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
Depending on damages
Mercalli scale or intensity
I, II, III, IV, V, VI…. XII
They report the energy
Richter scale or
magnitude
1, 2, 3, 4, 5, 6…
Two scales to measure earthquakes
PREDICTION
Where? Seismic areas (riks maps)
When?
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
Depending on damages
Mercalli scale or intensity
I, II, III, IV, V, VI…. XII
They report the energy
Richter scale or
magnitude
1, 2, 3, 4, 5, 6…
Two scales to measure earthquakes
PREDICTION
Where? Seismic areas (riks maps)
When? Nobody knows… What can we do?
DEFINITION: a violent trembling of the earth’s surface
CONSEQUENCES: buildings destroyed, loss of lives…
EARTHQUAKES
CAUSE:
A sudden
release of
energy
A sudden
movement
in a fault
zone
Forces
from the
interior
Movement
of tectonic
plates
STUDYING EARTHQUAKES: seismographs and seismograms
Depending on damages
Mercalli scale or intensity
I, II, III, IV, V, VI…. XII
They report the energy
Richter scale or
magnitude
1, 2, 3, 4, 5, 6…
Two scales to measure earthquakes
PREDICTION
Where? Seismic areas (rik maps)
When? Nobody knows… What can we do?
Better
buildings
Education of
population
Civil
protection
1.What do volcanic eruptions and earthquakes have in common?
2.What are seismic waves?
3.Name the crack in the earth’s surface along which movements take place.
4.What is the difference between the hypocentre and the epicentre during an
earthquake?
5.Name the instrument used to detect and record earthquakes.
6.What does the Richter scale measure?
7.Can scientists predict where and when an earthquake will happen?
8.Granada is in a seismic area. How can our city avoid or limit an earthquake’s
damage?
9.What is a tsunami?
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10.Where did the tsunami disaster of 26 December 2004 take place?
11.What caused that tsunami?
12.Have you recently heard of another tsunami? Where? Describe its
consequences.
13.Can scientists predict when a tsunami will happen?