Cyclones
Volcanoes
General
Atmosphere
Hazards
100
Can occur several hours of days in advance
What is the speed of onset of a cyclone?
100
A type of volcanic mudflow
What is a lahar?
100
Indo-Australian
What is the plate that Australia sits on?
100
Cyclones, Hail, Hurricanes
What is atmospheric hazards?
100
Earthquakes; Tsunamis and Volcanoes
What is a geological hazard?
200
Creates a twisting motion that forces the winds to rotate
What is the Coriolis effect?
200
Volcanoes can erupt suddenly and surprisingly, but usually give indications of an eruption weeks or months in advance.
What is the speed of onset of a volcanic eruption?
200
The threat of a naturally occurring event that will have a negative effect on people or the environment.
What is a natural hazard?
200
Strong winds, torrential rain, storm surges and flooding
What are the effects of a cyclone?
200
Mudflows (lahar); debris avalanches; flooding and tsunamis
What is a secondary volcanic hazard?
300
Emergency measures such as evacuation from threatened areas during cyclone situations
What is a cyclone mitigation strategy?
300
Eruptions can last from less that a day to more than 20 years.
What is the duration of a volcanic eruption?
300
As the plate separates along the boundary, the block between the faults cracks down and drops down
What is a divergent plate boundary?
300
Causes the water temperatures to warm in the central and eastern tropical Pacific
What is El Nino?
300
divergent; transform; convergent
What is the three types of plate boundaries?
400
Occur in tropical waters, in southern hemisphere predominantly in the Pacific and Indian oceans
What is the spatial occurrence of cyclones?
400
Issue meaningful and informative public warnings, assessments and forecasts of volcanic behaviour
What is the mitigation for the effects of volcanoes?
400
Mountains, earthquakes and volcanoes form where these boundaries are.
What is a convergent boundary?
400
A rise above the normal water level along a shoreline as a result of strong onshore winds and/or reduced atmospheric pressure
What is a storm surge?
400
The direct result of a volcano
What is a primary volcanic hazard?
500
1-2 days after making landfall. Landfall is when the centre of the storm crosses the coast.
What is the duration of a cyclone?
500
A poisonous gas cloud emitted during a volcanic eruption
What is a pyroclastic flow?
500
Occurs inside the earth, for example a volcano
What is the definition for a geological disaster?
500
- Above average rainfall - Flooding - Increased cyclonic activity
What is the weather associated with La Nina?
500
Pandemic; epidemic; vector born diseases
What is a biological hazard?
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