4 pages Definition of disaster cyclones
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Cyclones Overview
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Cyclones, Hurricanes and Typhoons are powerful storms that have winds in excess of 119 kilometres per hour (74 MPH).
These wind storms can develop either as a result of a confluence of warm and cold winds over the ocean following a thunderstorm or when differing areas of wind pressure conflict. Due to this, they most commonly occur during the summer months between June and November.
On average there are between 80-100 of these storms each year, and while only a fraction of these approach land they can cause devastation once they do.
Property damage is the most common after-effect, with windows, roofs and doors succumbing to the powerful winds battering them, and the most powerful storms can tear down small buildings. Thus, without a solid foundation, objects and people are at risk if they are caught in the winds.
Since the 1950s, storms that approach land are given official names so that meteorologists can track them. The names alternate between male and female and in ascending alphabetical order from the start of each season.
A storm is generally referred to as a Cyclone, Hurricane or Typhoon based on where the storm takes place.
Cyclones take place over the Indian Ocean
Hurricanes take place over the North Atlantic Ocean
Typhoons take place over the Pacific Ocean
Latest Cyclone Event
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Tropical Cyclone Funso (Mozambique) - January 2012
Tropical Cyclone Funso struck Mozambique in January 2012, killing over 20 people and leaving flooding in its wake.
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Hurricane Rina - October 2011
These Envisat images show Hurricane Rina approaching the Yucatan Peninsula in Mexico on 25 October 2011.
Cyclones
2010-Present 2007-2009 2005-2006 1998-2004
Date Event Type Event Location
Jan 2012 Tropical Cyclone Funso Mozambique Africa
Oct 2011 Hurricane Rina Mexico North America
Oct 2011 Hurricane Jova Mexico North America
Oct 2011 Typhoon Nalgae Philippines Asia
Sep 2011 Typhoon Nesat Philippines, Vietnam, China Asia
Sep 2011 Hurricane Hilary Pacific Coast Central America
Sep 2011 Typhoon Roke Japan Asia
Sep 2011 Typhoon Talas Japan Asia
Sep 2011 Hurricane Katia Cape Verde Islands Africa
Aug 2011 Typhoon Nanmodal Philippines Asia
Aug 2011 Hurricane Irene Caribbean, USA (East Coast) North America
Aug 2011 Typhoon Muifa Philippines Asia
Jul 2011 Hurricane Dora Mexico North America
Jul 2011 Typhoon MA-ON Japan Asia
Jun 2011 Tropical Storm Adrian Mexico North America
May 2011 Cyclone Songda Philippines Asia
Mar 2011 Tropical Cyclone BUNE Tonga Australia & Oceania
Feb 2011 Cyclone Bingiza Madagascar Africa
Feb 2011 Cyclone Yasi Australia Australia & Oceania
Oct 2010 Typhoon Megi Philippines, Taiwan, China Asia
Sept 2010 Hurricane Earl Carribean Sea North America
Aug 2010 Typhoon Mindulle Vietnam Asia
Mar 2010 Typhoon Ului Solomon Islands Australia & Oceania
Natural Disasters
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A disaster is a sudden, calamitous event that
seriously disrupts the functioning of a community
or society and causes human, material, and
economic or environmental losses that exceed
the community’s or society’s ability to cope
using its own resources. Though often caused
by nature, disasters can have human origins.
The combination of hazards, vulnerability
and inability to reduce the potential negative
consequences of risk results in disaster.
Disasters can take many different forms, and the duration can range from an hourly disruption to days or weeks of ongoing destruction. Below is a list of the various types of disasters - both natural and man-made or technological in nature – that can impact a community.
Hurricanes and tropical storms are among the most powerful natural disasters because of their size and destructive potential. Tornadoes are relatively brief but violent, potentially causing winds in excess of 200 mph. Both earthquakes and tornadoes strike suddenly without warning. Flooding is the most common of natural hazards, and requires an understanding of the natural systems of our environment, including floodplains and the frequency of flooding events. Wildfires are more prevalent in the event of a drought. Disasters impacting food supply can be extremely costly; American officials say that a food contamination scare similar to the one that hit the Belgian poultry industry in the 1990’s could jeopardize U.S. agricultural exports in excess of $140 billion.
Disasters also can be caused by humans. Hazardous materials emergencies include chemical spills and groundwater contamination. Workplace fires are more common and can cause significant property damage and loss of life. Communities are also vulnerable to threats posed by extremist groups who use violence against both people and property. High-risk targets include military and civilian government facilities, international airports, large cities and high-profile landmarks. Cyber-terrorism involves attacks against computers and networks done to intimidate or coerce a government or its people for political or social objectives.
Types of disaster :
Earthquake
Drought
Wildfire
Tropical cyclone
Landslide
Tsunami