4172663
EARTHQUAKES-AQA
- MEASURING
- RICHTER SCALE
- EACH VALUE ON THE SCALE
ALSO REPRESENTS ABOYT 30
TIMES MORE ENERGY
RELEASED THAN THE
PREVIOUS ONE
- DOESNT
HAVE A
UPPER LIMIT
AND ITS
LOGARITHMIC
- MEASURES MAGNITUDE
- EACH VALUE ON THE SCALE
ALSO REPRESENTS ABOYT 30
TIMES MORE ENERGY
RELEASED THAN THE
PREVIOUS ONE
- MERCALLI SCALE
- THE SCALE IS
BETWEEN
1-12
- MEASURED USING
OBSERVATIONS
- MEASURES
IMPACT OF AN
EARTHQUAKE
- THE SCALE IS
BETWEEN
1-12
- RICHTER SCALE
- SEISMIC WAVES
- SURFACE WAVES
- LOVE WAVES
- TRAVEL THROUGH SOLIDS ONLY
- MOVE THE SURFACE SIDE TO SIDE
- THESE WAVES ALSO CAUSE A LOT OF DAMAGE
- BY THE SHEARING EFFECT
- BY THE SHEARING EFFECT
- TRAVEL THROUGH SOLIDS ONLY
- RAYLEIGH
- CAN TRAVEL THROUGH LIQUIDS AND SOLIDS
- MOVE THE SURFACE IN A ROLLING MOTION
- CAN TRAVEL THROUGH LIQUIDS AND SOLIDS
- LOVE WAVES
- S WAVES
- TRAVEL THROUGH SOLIDS
- MOVE AT 90 DEGREES TO THE DIRECTION OF TRAVEL
- CAUSE A LOT OF DAMAGE
BECAUSE OF THEIR SHEARING
EFFECT
- TRAVEL THROUGH SOLIDS
- P WAVES
- TRAVEL THROUGH
LIQUIDS AND SOLIDS
- WAVES PUSH
AND PULL THE
EARTH IN THE
SAME
DIRECTION AS
THE WAVE IS
TRAVELLING
- TRAVEL FASTER THAN
OTHER SEISMIC WAVES
- TRAVEL THROUGH
LIQUIDS AND SOLIDS
- SURFACE WAVES
- EATHQUAKES ARE CAUSED BY THE
TENSION THAT BUILDS UP AT ALL
THREE PLATE MARGINS
- WHEN THE PLATE JERK PAST EACH OTHER IT SENDS OUT SEISMIC WAVES
- SPREAD OUT
FROM THE
FOCUS
- DOESNT HAVE TO BE
SINGLE POINT
COULD BE A FAULT
LINE
- DOESNT HAVE TO BE
SINGLE POINT
COULD BE A FAULT
LINE
- THE EPICENTRE
IS TH EPOINT ON
THE
EARTHSURFACE
WHERE THE
EARTHQUAKE IS
FIRST FELT
- SPREAD OUT
FROM THE
FOCUS
- OTHER POSSIBE
CAUSES OF AN
EARTHQUAKE
- REACTIVATION OF OLD FAULT
LINE
- SUBSIDENCE- WHERE THE
GROUND SINKS AS A
RESULT OF MINING
- PRESSURE ON
SURFACE ROCKS
FROM WATER IN
LARGE
RESERVOIRS
- REACTIVATION OF OLD FAULT
LINE
- WHEN THE PLATE JERK PAST EACH OTHER IT SENDS OUT SEISMIC WAVES
- SHALLOW FOCUS
(0-70KM) CAUSE
THE GREATEST
DAMAGE
- ACCOUNT
FOR 75% OF
ALL
EARTHQUAKE
ENERGY
- ACCOUNT
FOR 75% OF
ALL
EARTHQUAKE
ENERGY
- INDERMEDIATE 70-300KM
- FOCUS
- DEEP 300-700KM
- DEEP 300-700KM
- EFFECTS
- TSUNAMI
- ENORMOUS SEA
WAVES
GENERATED BY
DISTURBANCES
ON THE SEA
FLOOR
- MOST OFTEN TRIGGERED
BY EARTHQUAKES AND
SUBMARINE LANDSLIDES
- MARCH 2011 JAPAN
- ENORMOUS SEA
WAVES
GENERATED BY
DISTURBANCES
ON THE SEA
FLOOR
- LIQUEFACTION
- WHEN VIOLENTLY
SHAKEN SOILS WITH A
HIGH WATER
CONTENT LOSE THEIR
MECHANICAL
STRENGTH AND
START TO BEHAVE
LIKE A FLUID
- SAN FRANCISCO
- WHEN VIOLENTLY
SHAKEN SOILS WITH A
HIGH WATER
CONTENT LOSE THEIR
MECHANICAL
STRENGTH AND
START TO BEHAVE
LIKE A FLUID
- LANDSLIDES AND AVALANCHES
- WHERE SLOPE
FAILURE OCCURS
AS A RESULT OF
GROUND
SHAKING
- WHERE SLOPE
FAILURE OCCURS
AS A RESULT OF
GROUND
SHAKING
- TSUNAMI
- PREDICTION
- SEISMOMETER
- RECIEVES ARE
RECORDS SHOCK
WAVES FROM THE
EPICENTRE
- RECIEVES ARE
RECORDS SHOCK
WAVES FROM THE
EPICENTRE
- SATELLITE SURVEYING
- SENSING PLATE
MOVEMENT AND
MINUTE CHANGES
IN THE SURFACE
- SENSING PLATE
MOVEMENT AND
MINUTE CHANGES
IN THE SURFACE
- LASER REFLECTION
- SURVEYING
MOVEMENT
ACROSS FAULT
LINES
- SURVEYING
MOVEMENT
ACROSS FAULT
LINES
- RADON GAS METER
- INHERT GAS RADON IS RELEASED
FROM MINERALS WHEN THEY ARE
CRACKED AS PRESSURE INCREASES
DURING THE BUILD UP
- INHERT GAS RADON IS RELEASED
FROM MINERALS WHEN THEY ARE
CRACKED AS PRESSURE INCREASES
DURING THE BUILD UP
- SEISMOMETER
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