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LESSONS LEARNED FROM PAST NOTABLE DISASTERS AUSTRALIA PART 2: CYCLONES. Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA . AUSTRALIA. NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN AUSTRALIA. FLOODS. GOAL: PROTECT PEOPLE AND COMMUNITIES. CYCLONES. EARTHQUAKES.

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Lessons learned from past notable disasters australia part 2 cyclones

LESSONS LEARNED FROM PAST NOTABLE DISASTERSAUSTRALIAPART 2: CYCLONES

Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA 



NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN AUSTRALIA

FLOODS

GOAL: PROTECT PEOPLE AND COMMUNITIES

CYCLONES

EARTHQUAKES

HIGH BENEFIT/COST FROM BECOMING DISASTER NRESILIENT

WILDFIRES

ENVIRONMENTAL CHANGE

GLOBAL CLIMATE CHANGE


Natural phenomena that cause disasters
Natural Phenomena that Cause Disasters

Planet Earth’s atmospheric-hydrospheric-lithospheric interactions create situations favorable for CYCLONES


A disaster is

A DISASTER is ---

--- the set of failures that overwhelm the capability of a community torespond without external help  when three continuums: 1)  people, 2) community (i.e., a set of habitats, livelihoods, and social constructs), and 3) complex events (e.g., cyclones, floods,...) intersect at a point in space and time.


Disasters are caused by single- or multiple-event natural hazards that, (for various reasons), cause extreme levels of mortality, morbidity, homelessness, joblessness, economic losses, or environmental impacts.



High potential loss exposures in a cyclone

HIGH POTENTIAL LOSS EXPOSURES IN A CYCLONE

A communities people, property, essential and critical infrastructure, business enterprise, government centers, crops, wildlife, and natural resources.


Hazards of a severe windstorm aka potential disaster agents
HAZARDS OF A SEVERE WINDSTORM (AKA POTENTIAL DISASTER AGENTS)

  • WIND FIELD (CLOCKWISE DIRECTION; CAT 1 (55 mph) TO CAT 5 (155 mph or greater)

  • STORM SURGE

  • HEAVY RAINFALL

  • LANDSLIDES (MUDFLOWS)

  • COSTAL EROSION

  • TORNADOES (SOMETIMES)


CAUSES OF DAMAGE

WIND PENETRATING BUILDING ENVELOPE

UPLIFT OF ROOF SYSTEM

FLYING DEBRIS

STORM SURGE

SEVERE WINDSTORMS

IRREGULARITIES IN ELEVATION AND PLAN

“DISASTER LABORATORIES”

DESIGN PROBLEMS

FLOODING AND LANDSLIDES


  • HAZARDS

  • INVENTORY AT RISK

  • VULNERABILITY

  • LOCATION

  • PREPAREDNESS

  • PROTECTION

  • EARLY WARNING

  • EMERGENCY RESPONSE

  • RECOVERY and

  • RECONSTRUCTION

CYCLONE RISK

POLICY OPTIONS

ACCEPTABLE RISK

RISK

UNACCEPTABLE RISK

CYCLONE DISASTER RESILIENCE

DATA BASES AND INFORMATION

AUSTRALIA’S COMMUNITIES

HAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS


Lessons learned about disaster resilience
LESSONS LEARNED ABOUT DISASTER RESILIENCE

ALL CYCLONES PREPAREDNESFOR THE EXPECTED AND UNEXPEDTED IS ESSENTIAL FOR DISASTER RESILIENCE


Lessons learned about disaster resilience1
LESSONS LEARNED ABOUT DISASTER RESILIENCE

ALL CYCLONES EARLY WARNING IS ESSENTIAL FOR EVACUATION AND PREPARATION OF THE LAST LINE OF DEFENSE, WHICH ARE ESSENTIAL FOR DISASTER RESILIENCE


Lessons learned about disaster resilience2
LESSONS LEARNED ABOUT DISASTER RESILIENCE

ALL CYCLONES

TIMELY EMERGENCY RESPONSE IS ESSENTIAL FOR DISASTER RESILIENCE


Some of australia s worst cyclones

SOME OF AUSTRALIA’S WORST CYCLONES

Cyclone TRACY: 1974

Cyclone LARRY: 2006

Cyclone HAMISH: 2009


Cyclone tracy
CYCLONE tRACY



Impacts of cyclone tracy
IMPACTS OF CYCLONE TRACY

  • Cyclone Tracy devastated the city of Darwin in Australia’s Northern Territory from Christmas Eve to Christmas Day, 1974.


Impacts of tracy
IMPACTS OF TRACY

  • Tracy killed 71 people, caused AS837 million in damage (1974 dollars) and destroyed more than 70 percent of Darwin's buildings, including 80 percent of the houses.


Impacts of tracy1
IMPACTS OF TRACY

  • More than 30,000 of Darwin’s 47,000 inhabitants were evacuated from Adelaide, Whvalla, Alice, Springs, and Sydney.

  • Many never returned to Darwin.


After tracy

AFTER TRACY

Darwin was rebuilt using modern materials and updated building practices that incorporated wind engineering




Larry made landfall in far North Queensland close to Innisfail on 20 March 2006 as a Category 4 with wind gusts reaching 240 kilometers per hour (150 mph), and dissipating over land soon afterward.


Cyclone larry march 15 20 2006
CYCLONE LARRY: Innisfail on 20 March 2006 as a Category 4 with MARCH 15-20, 2006


Cyclone larry s track march 15 20 2006
CYCLONE LARRY’S TRACK: MARCH 15-20, 2006 Innisfail on 20 March 2006 as a Category 4 with


Larry s impacts
LARRY’S IMPACTS Innisfail on 20 March 2006 as a Category 4 with

  • Throughout Queensland, Cyclone Larry resulted in A$1.5 billion ($1.1 billion USD) in damage, making Larry, at that time the costliest tropical cyclone to ever impact Australia, surpassing 1974’s Cyclone Tracy’ loss.


Cyclone hamish

CYCLONE HAMISH Innisfail on 20 March 2006 as a Category 4 with


Cyclone hamish march 4 11 2009
CYCLONE HAMISH Innisfail on 20 March 2006 as a Category 4 with : MARCH 4-11, 2009


Cyclone hamish track march 4 11 2009
CYCLONE HAMISH Innisfail on 20 March 2006 as a Category 4 with ‘ TRACK MARCH 4-11, 2009


Cyclone hamish1
CYCLONE HAMISH Innisfail on 20 March 2006 as a Category 4 with


Cyclone hamish s impacts

CYCLONE HAMISH’S IMPACTS Innisfail on 20 March 2006 as a Category 4 with

Hamish was a CAT 4 storm with 290 kph (175 mph) winds

Coal exports were disrupted

The tourist industry was slowed.

It caused a major oil spill.


Heavy rainfall
HEAVY RAINFALL Innisfail on 20 March 2006 as a Category 4 with

  • Hamish produced heavy rainfall over North Queensland with accumulations of 300 mm (12 in) in some areas.

  • Mackay recorded 284 mm (11 in) in 2 days, and in combination with high tide, Hamish produced a 6.3 m (20.6 ft) tide in Mackay, flooding some streets.


Cyclone hamish oil spill impacts beaches
CYCLONE HAMISH: OIL SPILL IMPACTS BEACHES Innisfail on 20 March 2006 as a Category 4 with


The next cyclone season is on the way
THE NEXT CYCLONE SEASON IS ON THE WAY Innisfail on 20 March 2006 as a Category 4 with

  • CYCLONE DISASTER RESILIENCE IS NOT AN IMPOSSIBLE DREAM!


Lessons learned about disaster resilience3
LESSONS LEARNED ABOUT DISASTER RESILIENCE Innisfail on 20 March 2006 as a Category 4 with

ALL CYCLONES

RECOVERY AND RECON-STRUCTION IS ABOUT KNOW-ING WHAT TO DO DIFFFERENTLY WHEN START-ING OVER AGAIN.


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