volcano

Volcanic eruption that describes periodic weak to violent type of eruption characterized by fountain lava.

• vulcanian

• plinian

• strombolian

• phreatic

Which of the following Preparedness should we do BEFORE a Volcanic Eruption?

• PANIC

• When outdoors or when evacuating, cover your mouth and nose; wear goggles to protect your eyes

• Stay Away from the area during volcanic activity.

• Have disaster supplies on hand: Flashlight and extra batteries, First aid kit and manual, Emergency food and water, Essential medicines

Lava, rock fragments, hot vapor and gases are ejected in a volcano

• True

• False

What causes a volcano to erupt? (Hint: Think of a soda can)

• Expanding gases
• Expanding magma
• Expanding lava
• Expanding silica

Forms when underground water is heated by magma or hot rock. The heated water rises and collects in pools. Examples are found in Laguna

• Hot Springs

• Geysers

• Geothermal Energy

• Volcanic Eruption

Volcanic activity is a result of confining pressure that decreases as a result of decompression from the magma rising from a higher pressure point to a lower pressure point.

• True

• False

The eruption of a large volcano would most likely contribute to _____.

• a short-term temperature increase

• a short-term temperature decrease

• a long-term temperature increase

• a long-term temperature decrease

It is an explosive eruption that occurs when the pressure of entrapped gases in a relatively viscous magma becomes sufficient to blow off the overlying crust of solidified lava

• Hawaiian

• Strombolian

• Vulcanian

• Surtseyan

What factors that affect volcanoes' eruptive style?

I. Magma's temperature

II. Chemical Composition

III. Amount of Dissolved Gases

• I

• II

• I and II

• I, II and III

An eruptive style that is steam-driven eruption wherein the hot rocks come in contact with water. It is short-lived, characterized by ash columns but may be an onset of a larger eruption. An example of this eruption is the recent eruption of Taal Volcano in Batangas last January 2020.

• Vulcanian

• Plinian

• Phreatic or Hydrothermal

• Strombolian