hazards Flashcards

1
Q

what is a natural event?

A

Phenomenon found in or created by naturally occuring conditions and doesn’t efeect humans

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2
Q

what is a natural hazard?

A

Natural hazards are extreme natural events that can cause loss of life, extreme damage to property and disrupt human activities.

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3
Q

what is a natural disaster?

A

a natural hazard that has already happened

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4
Q

what are the 2 types of hazards?

A

techtonic and climate

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5
Q

give some examples of climate hazards?

A

Hurricanes, Floods, Droughts, Heatwaves, Wildfires, Tornadoes, Storm Surges, Landslides, Ice Storms, Snowstorms/Blizzards, Sea Level Rise and Ocean Acidification

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6
Q

give examples of techtonic hazards

A

Earthquakes, Volcanic Eruptions, Tsunamis, Landslides, Tectonic Plate Movement, Subsidence, Seafloor Spreading and Transform Faults

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7
Q

what are human factors for hazard risks?

A

population, weither its HIC or LIC and how the country can cope with extreme events

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8
Q

what are natural factors for hazard risks?

A

type of natural hazard, frequence and magnitude of hazard and phyisical geography of area

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9
Q

what are some primary effects of a natural hazard?

A

deaths/injuries, buildings destroyed, farms and food destroyed and eletric destroyed

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10
Q

what are some secondary effects of a natural hazards?

A

could cause another hazard, road blocks so travel is hard, economy of the country is damaged and lack of clean water so disease spreading

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11
Q

what are some immediate responses to natural hazards?

A

evacuate people, treating injured/ rescue people,food and water given out and foreign governers provide aid and money

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12
Q

what are some long term responses to natural hazards?

A

repair houses, repair roads, promote tourisum to improve economy and improve monotoring and evacuation plans

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13
Q

Earthquake

A

the shaking of the Earth’s surface caused by the movement of tectonic plates. The point on the Earth’s surface directly above the earthquake’s point of origin is called the epicenter. Earthquakes can cause ground shaking, displacement, and damage to structures.

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14
Q

Richter Scale

A

measures the magnitude of an earthquake. It is a logarithmic scale, meaning that each whole number increase represents a tenfold increase in amplitude of the seismic waves and roughly 31.6 times more energy release.

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15
Q

Volcanic Eruption

A

A volcanic eruption occurs when magma, gases, and ash are expelled from a volcano. The severity of eruptions can vary, and hazards include lava flows, pyroclastic flows, ash clouds, and volcanic gases.

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16
Q

Ring of Fire

A

a horseshoe-shaped zone around the edge of the Pacific Ocean basin where a large number of earthquakes and volcanic eruptions occur. This is due to the presence of many tectonic plate boundaries in the region.

17
Q

Flood

A

A flood is an overflow of water onto normally dry land. Causes include heavy rainfall, river overflow, storm surges, or rapid melting of snow and ice. Floods can result in the displacement of people, damage to infrastructure, and loss of crops.

18
Q

Storm Surge

A

A storm surge is a rapid rise in sea level caused by a tropical cyclone or intense storm. It can lead to coastal flooding and is a common hazard associated with hurricanes.

19
Q

Hurricane/Cyclone/Typhoon

A

These terms refer to the same meteorological phenomenon—intense tropical storms with strong winds and heavy rainfall. The terminology depends on the region: hurricanes in the Atlantic and northeastern Pacific, cyclones in the South Pacific and Indian Ocean, and typhoons in the northwestern Pacific.

20
Q

Mitigation

A

Mitigation refers to measures taken to reduce or prevent the impact of natural hazards. This can include building structures to withstand earthquakes, implementing early warning systems, and creating land-use planning strategies to minimize flood risks.