Show:
Cyclones
Cyclones
Tsunamis
Tsunamis
Tsunamis
100
Where do hurricanes occur?
Northern Hemisphere Atlantic/ NW Pacific
100
Define Rain Band
A cloud and precipitation structure associated with an area of rainfall which is significantly elongated.
100
What are three causes of a tsunami?
Earthquake Volcanic Erruption Underwater Landslide
100
Where should you go if there are warning signs of a tsunami?
At least 10-15m above the high tide line
100
On a warning map, what does a black circle stand for?
Water Level Station
200
For a cyclone to occur, what does the minimum temperature have to be?
26.5 degress celcuis
200
How many categories are there to classify a cyclone?
5
200
What does tsunami mean in Japanese?
Harbour Wave
200
How long can a tsunami wave last for?
10km - 500km
200
What are the 4 stages in formation of tsunamis?
Initiation Split Amplification Run Up
300
Name 3 Cyclones/Hurricanes/Typhoons
Yasi Ike Larry Katrina Oswald Tracy
300
What are the 4 stages of a cyclone?
Formative, Immature, Mature, Decay
300
How are tsunamis characterised (what type of wave)
Shallow water waves
300
Name two of the world's largest recorded earthquakes
Chili 1960 (9.5) Alaska 1964 (9.2) Alaska 1957 (9.1) Kamchatka 1952 (9.0)
400
What is the minimum wind speed?
63km/h
400
Where do the strongest winds occur?
Eye Wall
400
What is the average speed tsunamis travel?
200 m/s
400
What happens when the tsunami reaches the shoreline?
The wave slows down losing power, most of the time making a big wall of water causing more devastation
500
Define storm surge
Abnormal rise of water generated by a storm
500
What are 3 effects of a category 3 cyclone?
Major property damage significant infrastructure and crop damages Local power failure Injuries
500
What are faults?
Plate boundaries where large vertical movements in the earth's crust can occur
500
How does a tsunami's speed change?
Relative to the water depth - as the water depth decreases the tsunami slows