6.1 Geologic Natural Disasters

Question 1

Hypocenter vs Epicenter

Answer 1

Earthquakes occur underground at the point called the focus/hypocenter. This is the point where the stored elastic potential energy is released due to a fault rupture. The point on the surface above the hypocenter is called the epicenter.

Question 2

Volcano/ Magma (rock type)/ Earthquake strength at DIVERGENT boundaries

Answer 2

Effusive/ Mafic (Basalt/ Gabbro)/ Weak

Question 3

Volcano/ Magma (rock type)/ Earthquake strength at SUBDUCTION ZONES

Answer 3

Explosive/ semi-mafic (andesite/diorite)/ deep/strong

Question 4

Volcano/ Magma (rock type)/ Earthquake strength at CONTINENTAL CONVERGENT boundaries

Answer 4

No volcanoes, Surface, strong earthquakes

Question 5

Volcano/ Magma (rock type)/ Earthquake strength at TRANSFORM boundaries

Answer 5

No volcanoes, surface strong earthquakes

Question 6

Volcano/ Magma (rock type)/ Earthquake strength at INTRAPLATE boundaries

Answer 6

Hotspot, various magma types, occasional and weak earthquakes