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G10 Volcano Flashcards

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1
Q

A zone within the Pacific ocean that covers a collection of moving plate edges forming a “ring” of volcanoes that cause earthquakes.

A

Pacific Ring of Fire

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2
Q

A 40 000-kilometer, horseshoe-shaped basin that is associated with oceanic trenches, volcanic arcs, and plate movements.

A

Pacific Ring of Fire

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3
Q

The Philippines is an archipelago surrounded by _ _ that provides ideal condition for volcanic formation resulting to highly active seismicity and volcanism in the country

A

subducting plates

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4
Q

Buoyant molten rock also known as

A

Magma

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5
Q

Buoyant molten rock also known as magma rises toward the surface and extruded as lava during a

A

Volcanic Eruption

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6
Q

are those volcanoes that erupted within the last 10 000 years.

A

Active Volcanoes

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7
Q

As of 2008, PHIVOLCS listed _ active volcanoes.

A

23

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8
Q

It is the most active volcano in the country located in Albay.
It is famous because of its almost perfect cone shape.

A

Mayon Volcano

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9
Q

It is a volcanic caldera composed of several active volcanic landforms making it a complex type of volcano.

A

Taal Volcano

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10
Q

It is another active stratovolcano located in Negros Oriental.
Its latest activity was in June 18, 2016 according to PHIVOLCS.

A

Kanlaon Volcano

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11
Q

It is located in the province of Sorsogon
It is a stratovolcano formed inside a caldera.
Its latest activity was in March 2, 2017.

A

Bulusan Volcano

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12
Q

borders of Zambales, Tarlac, Pampanga

A

Pinatubo Volcano

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13
Q

Volcanoes that do not have any historical record of any eruption but are considered as morphologically young.

A

Potentially Active Volcanoes

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14
Q

Examples of Potentially Volcanoes

A 
Apo Volcano
Corregidor
Isarog
Lapac
Malindig
Malandagan
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15
Q

Volcanoes have not erupted for at least 10 000 years and are not expected to erupt again in the future.

The morphology of these volcanoes was already modified by weathering and erosion.

A

Inactive Volcanoes

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16
Q

Numbers of Volcano

A

23 potentially, 26 potentially active, 281 inactive

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17
Q

occur when rocks in the lithosphere rupture or move in order to release accumulated energy and stress

A

Earthquakes

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18
Q

are breaks in Earth’s crust where rocks move or slide past one another. There should be an apparent displacement for a break or a fracture for it to be considered as a fault

A

Fault

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19
Q

surface where the slip occurs

A

fault plane

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20
Q

location below Earth’s surface where the earthquake originate

A

hypocenter

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21
Q

surface directly above the hypocenter

Most of the time, it is the area where the greatest damage takes place during earthquakes.

A

epicenter

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22
Q

It is the measure of the degree of shaking experienced in an area.

A

Intensity

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23
Q

It is a quantitative measurement that relies on the data from seismic records along with other techniques to estimate the amount of the energy released.

A

Magnitude

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24
Q

are the East Luzon Trough and Philippine Trench.

A

Eastern part

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25
has the Manila Trench, Negros Trench, Sulu Trench, and Cotabato Trench.
Western region
26
is a 1 200-km fault zone cutting almost the whole archipelago.
Philippine Fault or Philippine Fault Zone (PFZ)
27
Faults in the Philippines
``` Valley Fault System or Marikina Valley Fault, Legaspi Lineament, Macolod Corridor, Tablas Lineament, Lubang-Verde Passage Fault System, Mindanao Fault and, Mindoro or Aglubang Fault, Offshore Cebu-Bohol faults. Sibuyan Sea Fault, ```
28
Historical accounts of earthquakes only started during the Spanish colonization in the
late 15th century
29
instrumentally-derived parameters for earthquakes started in
1892 onwards
30
Casiguran Aurora, Ragay Gulf, Mindanao, Panay, and Nueva, Ecija are areas in the Philippines where the strongest earthquakes occurred with magnitude _
>7.0
31
is the shaking of Earth’ surface resulted from the sudden release of energy due to the movement of tectonic plates
Earthquakes
32
Location of Taal
Batangas
33
Location of Kanlaon
Negros Oriental
34
Location of Bulusan
Sorsogon
35
``` a volcanic landform associated with depression in a circular form and has a diameter exceeding one kilometer. ```
caldera
36
Hibok-hibok
Camiguin
37
Kanlaon
Negros Oriental
38
Pinatubo
Boundaries of Pampanga, Tarlac, and Zambales
39
Taal
Batangas
40
Apo
Davao
41
Corregidor
Bataan
42
Isarog
Caramines Sur
43
Malindig
Marindique
44
Bontes
Negros Oriental
45
other faults
``` Valley Fault System Marikina Valley Fault, Macolod Corridor Lubang-Verde Passage Fault System, Mindoro or Aglubang Fault, Sibuyan Sea Fault, Legaspi Lineament, Tablas Lineament, Mindanao Fault and, and Offshore Cebu-Bohol faults. ```
46
Eastern part of PH
East Luzon Through, Philippine Trench
47
Western region of PH
Manila Trench, Negros Trench, Sulu Trench, Cotobato
48
destructive earthquake
``` Casiguran, Aurora Ragay Gulf, Bicol Region Mindanao/ Moro Golf Panay/ Culasi, Antique Luzon/ Rizal, Nueva Ecija ```
49
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West Valley Fault
50
``` a belt of Earth’s crust involved in mountain formation caused by the compression of ancient sedimentary and igneous terrane ```
orogen
51
``` the central mountain chain of Luzon which cuts across the north to the Luzon Strait from the northern boundary of the central plain. T ```
Central Cordillera
52
highest peak of Central Cordillera
Mt. Pulag
53
longest mountain range in the country ``` It is one of the oldest orogens in the archipelago. It runs in the north-south direction from the provinces of Cagayan to the north and Quezon to the south. It covers the areas of Aurora, Bulacan, Cagayan, Isabela, Nueva Ecija, Nueva Vizcaya, Quezon, Quirino, and Rizal province. ``` The range’s highest point is still unclear since several peaks are considered as the highest. For example, Mount Anacuao in Aurora has a height of 1 850 meters while Mount Cetaceo in Cagayan has the same altitude as well. In April 2012, Mount Guiwan in Nueva Vizcaya had a preliminary measurement of 1 915 meters on the summit.
Sierra Madre Mountain | Range
54
``` connect Sierra Madre Mountain with the Central Cordillera. The mountain range is located in the province of Nueva Vizcaya. It serves as the location of the headwaters of Cagayan River which is the longest river in the country. This mountain range reaches an altitude of 1 680 meters. ```
Caraballo Mountains
55
lies on the western island of Luzon. ``` It separates Luzon’s central plain from the South China Sea. It extends from western Pangasinan province, the whole length of Zambales, to the tip of the Bataan Peninsula in the south. Its most noticeable feature is the Cabusilan Mountain Range comprised of Mt. Pinatubo, Mount Negron, and Mount Cuadrado. These mountains are believed to be volcanic in origin, but the only active volcano in the mountain range is Mt. Pinatubo. ```
Zambales Mountains
56
an abducted slice of oceanic crust emplaced during subduction
ophiolite
57
highest peak of Zambales Mountains
Mt Tapulao
58
longest mountain range in Panay Island. It cuts across the center of Panay Island.
Central Panay Mountain Range
59
highest point of Central Panay Mountain Range
Mount Madjaas
60
In the central portion of the province of Bukidnon . This mountain range is situated in Northern Mindanao. This mountain range is also where the major river systems in Bukidnon originate.
Kalatungan Mountain Range
61
highest point of Kalatungan Mountain Range
Mount Kalatungan
62
``` is located in the northern central part of Bukidnon province. It is also where the headwater catchment areas of several major river systems in the north and central Mindanao are located. Along with Kitanglad, these rivers are considered as protected areas by the Philippine government. ```
Kitanglad Mountain Range
63
highest point of Kitanglad Mountain Range
Mount Dulang-dulang
64
is considered as the Central Cordillera of Mindanao. It is also an orogen. It passes through the provinces of Misamis Oriental, Bukidnon, Agusan del Norte, Agusan del Sur, Davao del Norte, and Davao del Sur. Headwaters of Mindanao River, Pulangi River, and Davao River originate from this mountain rang
Pantaron Moutain Eange
65
main plates
``` North America, South America, Pacific, African, Eurasian, Australian-Indian, and Antarctic plate ```
66
intermediate plates
``` Caribbean, Nazca, Philippine, Arabian, Cocos, Scotia, and Juan de Fuca ```
67
PHIVOLCS
Philippine Institute of Volcanology and Seismology

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