Secondary Volcanic Hazards Flashcards Preview

Hazards - Volcanoes - A level geography > Secondary Volcanic Hazards > Flashcards

Flashcards in Secondary Volcanic Hazards Deck (18):
1

Define Acid Rain.

Rainfall that is acidic made by atmosphere pollution that causes environmental harm.
Includes sulphur combined with atmospheric moisture.

2

Define Climate Change.

A change in global or regional climate patterns.

3

Define Lahars.

Type of mudflow or debris flow composed slurry, rock debris and water flowing down a volcano.
Extremely destructive.as lava combines with ice.

4

Define Landslides.

Large masses of wet or dry rock and soil that fall, slide or flow very rapidly under force of gravity.

5

Define Flooding.

Overflow of large amounts of water beyond its normal limits. Or a eruption may melt ice causing this mass flow of water.

6

Define Tsunami or Tidal Wave.

Series of waves in a water body caused by the displacement of a large volume of water generally in the ocean.

7

Damage/hazard Acid Rain.

Harmful to wildlife/fish.
Respiratory diseases - asthma.

8

Damage/hazard Climate Change.

Glacier/ ice melting - polar bears risk.
Loss of sea water.
Intense waves.

9

Damage/hazard Lahars.

Building and valuable land buried.
Entrapment of people.

10

Damage/hazard Landslide.

Property damage, injury, death.
Negative economic damage - repair buildings.
Water availability affected.

11

Damage/hazard flooding.

Social consequences for communities.
Waterborne diseases.
Drowning - death.

12

Damage/hazard Tsunamis/tidal wave.

Violent flooding.
Loss of life/property.
Sweeping away trees.

13

Example of Acid Rain from a volcano.

Volcano in Hawaii.
High concentration of sulfur dioxide produce volcanic smog causing persistent health problems.

14

Example of climate change from a volcano.

Current global average temperature is 0.85'c higher than it was in late 19th century.

15

Example of lahars from a volcano.

Lahar at el Palmar, Guatemala.

16

Example of landslides from a volcano.

2008 Cairo landslide.
119 people died, families living in slums.

17

Example of flooding from a volcano.

Flooding in Bangladesh.
Prone to flooding due to being situated on the Gangs Delta and the many distributes flowing into bay of Benegal.

18

Example of tsunami from a volcano.

2004 Indian Ocean Tsunami.
Magnitude of 9.1 mercalli .