Volcanoes and Volcanic Activity

Volcanic Eruption

Module 4 Overview

Let us watch this video

"Volcanoes 101 | National Geographic"

https://www.youtube.com/watch?v=VNGUdObDoLk

Multiple Choice

TRUE or FALSE.

Most of the volcanoes can be found where the plate tectonic plates meet.

• TRUE

• FALSE

Multiple Choice

An example of stratovolcano in the Philippines

Multiple Choice

An example of a caldera volcano in the Phillippines

Multiple Choice

What affects this process?

From outer core------- rock melted------then turns to magma-----then it escapes in the earth surface---volcanic eruption

• heat

• location

Multiple Choice

What do you call magma that reaches the surface?

• Llama

• Lava

• Magnum

• Magma

Multiple Choice

Comprises the many volcanoes that rim the Pacific Ocean

• Ring of Fire

• Mid-Atlantic Ridge

• Eurasian-Melanesian Mountain Belt

• Pacific Rim

Multiple Choice

Refers to the movement of lava as it flows out from the vent.

• Lava flow

• Magma flow

• Pahoehoe

• A'a

Volcanic Eruption

Volcanic eruptions happen when lava and gas are discharged from a volcanic vent.

Volcanoes in the Philippines

Active Volcanoes

Erupted within historical times (within the last 600 years), accounts of these eruptions were documented by man erupted within the last 10,000 years based on the analyses of material from young volcanic deposits.

Potential Active Volcanoes

Morphologically young-looking but with no historical or analytical records of eruption.

Arayat in Pampanga.

Isarog in Camarines Sur.

Cuernos de Negros in Negros Island.

Apo in Davao del Sur.

Inactive Volcanoes

No recorded eruptions physical form has been intensively weathered and eroded, bearing deep and long gullies.

Volcanic Eruption

Volcanic eruptions happen when lava and gas are discharged from a volcanic vent.

Volcanic Hazards

Volcanic hazards are phenomena arising from volcanic activity that pose potential threat to persons or property in a given area within a given period of time

Multiple Choice

Which of the following is an example of LAVA flow?

Multiple Choice

Which of the following is an example of the ballistic projectile?

Multiple Choice

Which of the following is an example of pyroclastic flow?