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WorksheetsActive & Inactive Volcanoes
Total questions: 10
Worksheet time: 10mins
Which of the following is a potentially active volcano?
Apo
Batulao
Cabalian
Which of the following is an active volcano?
Isarog
Iriga
Corregidor
Which of the following is an inactive volcano?
Cagua
Makiling
Mariveles
Which of the following statements correctly describes an active volcano?
It has historical eruptions and/or activity within 10000 years from present.
It had an explosive eruption within the last century.
It is morphologically young and has a tall conical structure.
Which of the following statements correctly describe a potentially active volcano?
It has no eruptive history.
Most of its parts are still un-eroded.
It presents signs of volcanic activity.
It will never erupt again.
What makes a volcano inactive?
There is an extensive erosion.
There is no eruptive history.
It has no current volcanic activity.
It has not erupted for the past 500 years.
Which of the following volcanoes are included in the four most active volcanoes in the country?
Apo
Mayon
Taal
Kanlaon
Why do non-active volcanoes exhibit signs of magmatism such as hot springs?
These exhibit signs of renewed activity.
These are incorrectly classified by PHIVOLCS.
These release remnant heat from ancient volcanism.
These indicate an impending eruption.
Mt. Apo begins to experience earthquakes and small steam eruptions. Is it safe to assume that it will erupt again?
Yes, because it is potentially active.
No, only active volcanoes can erupt.
Yes, because of the geothermal plant in the area.
Why is volcanic activity classification necessary?
to determine possible energy resource sites
to create a comprehensive volcano catalog
to gather enough information for research
to easily monitor potential eruptions
