volcanic hazard

Question 1

meaning of phivolcs

Answer 1

Philippine Institute of Volcanology and Seismology

Question 2

Has been closely monitoring the active volcanoes to alert communities in the immediate vicinity of any danger.

Answer 2

PHIVOLCS

Question 3

Areas having a high risk of volcanic eruptions

Answer 3

Camiguin, Sulu, Biliran, Albay, Bataan, Sorsogon, South Cotabato, Camarines Sur, Batanes, Laguna

Question 4

measure movement in the planet’s crust.

Answer 4

seismograph

Question 5

are closely related to the seismic activities that also cause earthquakes and tremors

Answer 5

volcanic eruptions

Question 6

used to monitor volcanoes

Answer 6

seismograph

Question 7

a small container of liquid shows how much the ground moves. Are connected to computers that monitor ongoing changes in the landscape

Answer 7

tiltmeter

Question 8

instruments used to monitor volcanoes

Answer 8

tiltmeters, seismograph

Question 9

are located in the zones of the earth’s crust where one tectonic plate is thrust and consumed beneath another

Answer 9

subduction volcanoes

Question 10

exist in the middle of tectonic plate where a crustal weakness allows molten material to penetrate from the earth’s interior

Answer 10

hot spot volcanoes

Question 11

occurs where tectonic plates diverge, effusive especially when they occur on the deep ocean floor

Answer 11

rift volcanoes

Question 12

Different volcanic hazard

Answer 12

subduction volcanoes, rift volcanoes, hot spot volcanoes

Question 13

this is molten rock that pours down from the slopes of the volcano

Answer 13

lava flow

Question 14

this is a rock fragment that is ejected from volcano during its explosive eruption

Answer 14

ballistic projectile

Question 15

this is composed of bits and pieces of pulverized rock, minerals, and volcanic glass generated from the volcanic eruption

Answer 15

ash fall

Question 16

this refers to the fastmoving fluidized mass of rock fragments and gases

Answer 16

pyroclastic flow

Question 17

this is an indonesian term for the mixture of water, pyroclastic materials, and rock fragments flowing down a volcano or river valley

Answer 17

lahar

Question 18

potential volcano-related hazard

Answer 18

volcanic gas, lahar, pyroclastic flow, ash fall, ballistic projectile, lava flow

Question 19

this consists of sulfur dioxide and hydrogen sulfide which is poisonous and hazardous to organism

Answer 19

volcanic gas

Question 20

Types of volcanoes

Answer 20

active and inactive

Question 21

Active volcanoes

Answer 21

Taal, mayon, pinatubo

Question 22

inactive volcanoes

Answer 22

mount makiling, tanza hill, bigain hill

Question 23

are openings in earth’s crust that allows the energy from the interior of earth to escape to the surface

Answer 23

volcanoes

Question 24

composed of molted rocks from the earth’s mantle

Answer 24

magma