Module 6 Hazards glossary

Question 1

These atmospheric weather events cause real problems for the east-Australian coastline.

Accepted Answer

East Coast Lows

Question 2

'Three-dimensional imaging' is used to predict what kinds of natural disasters?

Accepted Answer

volcanic eruptions

Question 3

Due to current climate change, which of the following is NOT expected to become more common and severe?

Accepted Answer

volcanic eruptions

Question 4

The size of an earthquake is also referred to as its:

Accepted Answer

magnitude

Question 5

What is another name for a mudslide caused by a volcanic eruption?

Accepted Answer

lahar

Question 6

This natural disaster occurred in Thredbo in 1997.

Accepted Answer

landslide

Question 7

The 'sphere' that refers to all of the living things on Earth.

Accepted Answer

biosphere

Question 8

What do vulcanologists use an infra-red spectrometer for?

Accepted Answer

measuring gases

Question 9

What type of event was the most expensive natural disaster in Australia's history?

Accepted Answer

a hailstorm

Question 10

The name for particularly dry periods (in Australia).

Accepted Answer

drought

Question 11

What is this volcanic hazard called?

Accepted Answer

pyroclastic flow

Question 12

It is believed that animal behaviour can help to predict what kinds of disasters?

Accepted Answer

earthquakes

Question 13

This volcano erupted in 1991, lowering global temperatures.

Accepted Answer

Mt Pinatubo

Question 14

The place below the ground where an earthquake actually occurs.

Accepted Answer

focus

Question 15

Which of the following ended the Permian Period, contributing to a mass extinction?

Accepted Answer

Siberian Traps

Question 16

These types of volcanic eruptions release lots of lava.

Accepted Answer

effusive

Question 17

What is the composition of magma generated by subduction at convergent plate boundaries?

Accepted Answer

felsic

Question 18

In an 'East Coast Low', what does the 'low' refer to?

Accepted Answer

low pressure

Question 19

What is this earthquake hazard called?

Accepted Answer

ground liquefaction

Question 20

When volcanoes emit materials such as lava or gases, what is this event called?

Accepted Answer

an eruption

Questions 20