Mt St Helens - Volcanic Eruption Study

Question 1

When did the Mt St Helens eruption occur?

Answer 1

1980 (18th, May)

Question 2

What value was the earthquake that caused the Mt St Helens eruption, on the richter scale?

Answer 2

5.1

Question 3

How much land was wiped out after landslide

Answer 3

27km

Question 4

How many people died in the Mt St Helens eruption?

Answer 4

57 people

Question 5

Social Impacts

Answer 5

Loss of lives and homes

Question 6

Environmental Impacts

Answer 6

Flooding caused by glaciers melting and ash and trees blocking rivers. Loss of forests and habitats

Question 7

Economic Impacts

Answer 7

Logging industry lost

Question 8

What were the long term responses?

Answer 8

Infrastructure rebuilt, forests replanted and roads rebuilt

Question 9

What were the short term responses?

Answer 9

Helicopters looked for survivors as ash was cleared from roads and rescuers got through only when roads were cleared. Gas masks were also sent

Question 10

What happened in 1982?

Answer 10

It became a national monument

Question 11

What happened to tourism after the eruption?

Answer 11

It increased