an opening, gap or crack on earth’s surface

recently erupted within 10,000 years

has not erupted in long time but there is a possibility that it can erupt in the future

has not erupted thousands of years ago and there is no possibility of eruption

molten rock beneath the earth’s surface

small cone shaped volcano

a flat piece of rock formed when magma hardens

an opening in an earth’s surface through volcanic materials escape

side of a volcano

molten rock that erupts form a volcano and solidifies as it cools

mouth of a volcano

underground passage magma travel through

highest point of a volcano

entrance of a volcano

fragments of lava rocks that are blasted into the air

a cloud of ash

are chunks of lava blasted into the air

fast moving current of hot gases and rock

fragments material that consists of pumice,scoria,lithic

also known as mud flows

occurs when magma is expelled from a volcanic vent

lava violently explodes out of a vent

lava quiently and steadily flow out of a volcano

lava is thrown into the air in jets

smallest type is explositions which consists of intermittent

violent type of eruption which accompanied by violent gun shots

largest and most violent type

hydromagmatic eruption where lava interact explosively with water

formed from a nonexplosive eruption of lava

also known as composite volcano

simplest type of volcano

build by slow eruption of high viscous lava

thick and mostly flattened layer of cooled lava

large bowl shaped depression

are described to produced the largest eruptions

created when magma erupts in underwater

red hot with a very high temperature

contains larger amount of gases and are faster that pyroclastic flows

solid materials that are thrown out during volcanic eruption

carbon dioxide, sulfur dioxide are some gases

also called lahar, violent, fast moving suspention of water,ash, and rocks

are giant ocean waves created by underwater earthquakes

meaning of PHIVOLCS

areas near volcanoes which usually surrounded by hot springs and boiling mud pool

use the heat beneath the earth’s surface