Geological Hazards and Disaster (Volcanic Eruption)

Question 1

the volcano with a lake and within the lake.

Answer 1

Taal Volcano

Question 2

famous for its almost perfect conical shape, has many visitors as well.

Answer 2

Mayon Volcano

Question 3

• is a vent on the Earth’s surface that opens downward to a pool of molten rock, debris, and gases.
• involves the process of subduction.

Answer 3

VOLCANO

Question 4

it is currently erupting or is showing signs of volcanic eruption

Answer 4

ACTIVE VOLCANO

Question 5

it is one that has erupted and then entered a long period of inactivity.

Answer 5

POTENTIALLY ACTIVE VOLCANO

(ex: Mt. Pinatubo was a dormant volcano for about 600 years)

Question 6

is one that has not shown any sign of activity for a long period and it has no record of volcanic eruption in the past thousand years.

Answer 6

INACTIVE VOLCANO

Question 7

it is a mass of magma that flows down the slope of the volcano and can cause injuries and burn structures and vegetation.

Answer 7

LAVA FLOW

Question 8

refers to hot dry masses of fragmented volcanic materials that move along the slope and the ground surface at a speed greater than 60km per hour.

Answer 8

PYROCLASTIC FLOW

Question 9

These are showers of fine to coarse-grained volcanic materials and other airborne products of a volcanic eruption.

Answer 9

TEPHRA FALLS

Question 10

The are rocks that are released into the air by an erupting volcano.

Answer 10

BALLISTIC PROJECTILES

Question 11

It is one of the basic components of magma or lava. This creates acid rain that can harm plants, marine life, and infrastructures.

Answer 11

VOLCANIC GAS

Question 12

It is a flowing mixture of volcanic debris and water with two classifications

Answer 12

LAHAR

Question 13

what are the 2 classifications of volcanic debris and water?

Answer 13

primary or hot lahar
secondary or cold lahar (caused by heavy rainfall)