DRRR Flashcards
an opening in earth’s crust from which molten or hot rocks with gaseous material have been ejected
Volcanoes
also referred to as Circum-Pacific Belt
Pacific ring of fire
The reason why the Philippines is considered a hazard prone area
Pacific ring of fire
a piece of rock formed when magma hardens in a crack in a volcano
Sill
a passage that magma travels through
Conduit
the general name given to anything thrown into the air during a volcanic eruption
Tephra
Molten rock beneath earth’s surface
Magma Reservoir
molten rocks that erupts from a volcano that solidifies as it cools
Lava flow
an opening in earth’s surface through which volcanic materials escape
Vent
Mouth of a volcano
Crater
fragments of lava or rock that are blasted into the air by volcanic eruptions
Ash cloud
The number of volcanoes in the philippines
300
The number of active volcanoes in the PH
24
The meaning of PHILVOCS
Philippines Institute of Volcanology and Seismology
volcanoes that has erupted recently or is expected to erupt
Active Volcano
Currently inactive but has the potential to erupt
Dormant/Inactive volcanoes
A volcano that is no longer active and is not expected to erupt again, no longer pose a direct threat of eruption
Extinct Volcano
volcano-related phenomena that pose potential threat or negative impact.
Volcanic Hazards
A mixture of material that forms a mud that is powerful enough to remove or carry buildings.
Lahar (mud flow)
compromised of fragments or rocks, minerals, glass
Ash FallP
fast-moving fluidized mass of rock fragments and gasses
Pyroclastic Flow
rock fragment that is ejected from a volcano during its explosive eruption
Ballistic Projectile
consist of sulfur dioxide and hydrogen sulfide, poisonous and hazardous to organism
Volcanic Gas
molten rocks that pours down from the slopes of the volcano
Lava flow
