HAZARD EARTH - ESSAYS

Question 1

FACTORS PHYSICAL VS HUMAN IMPACT ON TECTONIC HAZRDS

Answer 1

PHYSICAL MORE IMPACT

1. MAGNITUDE & FREQUENCY A PHYSICAL FACTORS
2. LOCATION OF HAZARD A PHYSICAL FACTOR
3. TYPE OF HAZARD A PHYSICAL FACTOR
4. AREA AFFECTED (SCALE OF EVENT) A PHYSICAL FACTOR

HUMAN

1. MODIFICATION STRATEGIES CAN INFLUENCE IMPACT
2. QUALITY OF INFRASTRUCTURE CAN INFLUENCE IMPACT
3. POPULATION DENSITY CAN INFLUENCE IMOACT
4. ECONOMIC DEVELOPMENT CAN INFLUENCE IMOACT

Question 2

WHICH HAVE GREATEST IMPACT EARTHQUAKES OR VOLCANOES

Answer 2

VOLCANOES GREATER

1. LEAD TO CLIMATE CHANGE
   eg Mount PInatubu
2. WIDESPREAD DESTRUCTION
   Eg Mount St Helens 1980
3. LOSS OF LIFE
   Mount Pelleee 1902 - 30,0000 dead in 1902
4. SIGNIFICANT ECONOMIC IMPACTS
   Eyjafjalljokul 2010 $5 billion

EARTHQUAKES GREATER

1. EQ CAUSE MASSIVE STRUCTURAL DAMAGE
   Eg Chile 2011
2. MASSIVE LOSS OF LIFE
   Eg Haiti 240,000 dead, Indian Ocean
3. MASSIVE ECONOMIC LOSS
   Eg Tohoku Japan $ billion
4. OCCUR IN POPULATED AREAS
   Eg San Francisco
5. LITTLE OR NO WARNING