Earthquakes, Zones and Volcanoes
... Setting description / diary extractpompeii Persuasion letter – aid for earthquake appeal Newspaper article - Tsunami ...
... Setting description / diary extractpompeii Persuasion letter – aid for earthquake appeal Newspaper article - Tsunami ...
Debris Avalanches
... Mud flows have the consistency of wet cement Travel along valleys at 20-40 mph for up to 200 miles. Destroy or bury almost everything in their path. They are the second most destructive volcanic hazard (after pyroclastic flows and surges) and are responsible for 27,000 deaths since 1600 A.D. ...
... Mud flows have the consistency of wet cement Travel along valleys at 20-40 mph for up to 200 miles. Destroy or bury almost everything in their path. They are the second most destructive volcanic hazard (after pyroclastic flows and surges) and are responsible for 27,000 deaths since 1600 A.D. ...
notable events and disasters of 2014. highlights of volcanic eruptions
... WHAT HAPPENED? • After a week of seismic activity rattled the uninhabited area 200 miles (320 kilometers) east of the capital of Reykjavik with thousands of earthquakes, Iceland's Bardarbunga volcano began erupting Saturday (Aug. 23rd) under the country's largest glacier. ...
... WHAT HAPPENED? • After a week of seismic activity rattled the uninhabited area 200 miles (320 kilometers) east of the capital of Reykjavik with thousands of earthquakes, Iceland's Bardarbunga volcano began erupting Saturday (Aug. 23rd) under the country's largest glacier. ...
Ch. 9 Study Guide Answers
... continental plate, the oceanic plate is usually sub-ducted because • the oceanic plate is denser and thinner than the continental crust. ...
... continental plate, the oceanic plate is usually sub-ducted because • the oceanic plate is denser and thinner than the continental crust. ...
File
... How and why do volcanoes erupt? • Hot, molten rock (magma) is buoyant (has a lower density than the surrounding rocks) and will rise up through the crust to erupt on the surface. • Depending how magma reaches the surface, how easily it flows (viscosity) and the amount of gas (H2O, CO2, S) it has in ...
... How and why do volcanoes erupt? • Hot, molten rock (magma) is buoyant (has a lower density than the surrounding rocks) and will rise up through the crust to erupt on the surface. • Depending how magma reaches the surface, how easily it flows (viscosity) and the amount of gas (H2O, CO2, S) it has in ...
Do All VolCAnoES ERupT In THE SAmE WAy?
... The eruption is estimated to have killed more than 3000 people. • Lava dome volcanoes can produce violent explosions, but the lava rarely flows far. • Stratovolcanoes are the shape most people think of as a volcano. They often erupt violently and have been responsible for many of history’s most di ...
... The eruption is estimated to have killed more than 3000 people. • Lava dome volcanoes can produce violent explosions, but the lava rarely flows far. • Stratovolcanoes are the shape most people think of as a volcano. They often erupt violently and have been responsible for many of history’s most di ...
Ice Core PowerPoint notes
... affect the Earth’s temp? 1. Dust, ash, glass, and rock are released into the air during a volcanic eruption. ...
... affect the Earth’s temp? 1. Dust, ash, glass, and rock are released into the air during a volcanic eruption. ...
C:\Users\Vico\Documents\Vic Data\Courses\Volcanology\Syllabus
... important objectives, the most salient of which are: 1. Employ rock whole-rock geochemistry and analyze data sets in classifying volcanic rocks, and be able to identify the gross tectomagmatic environment of chemically distinct volcanic suites. 2. Articulate the physical properties of different magm ...
... important objectives, the most salient of which are: 1. Employ rock whole-rock geochemistry and analyze data sets in classifying volcanic rocks, and be able to identify the gross tectomagmatic environment of chemically distinct volcanic suites. 2. Articulate the physical properties of different magm ...
remembering some of the lessons from one of 2013`s non
... EXPLOSIVE VOLCANIC ERUPTIONSA NATURAL HAZARD ...
... EXPLOSIVE VOLCANIC ERUPTIONSA NATURAL HAZARD ...
Chapter 6 Worksheet
... before the 1952 eruption, plumes of white steam were observed rising from the summit of the crater. In the summer of 1952, local inhabitants reported an increase in the output of steam and an increased smell of sulfur. The first eruption was a single explosive burst that lasted about three hours and ...
... before the 1952 eruption, plumes of white steam were observed rising from the summit of the crater. In the summer of 1952, local inhabitants reported an increase in the output of steam and an increased smell of sulfur. The first eruption was a single explosive burst that lasted about three hours and ...
chapter_6_worksheet
... before the 1952 eruption, plumes of white steam were observed rising from the summit of the crater. In the summer of 1952, local inhabitants reported an increase in the output of steam and an increased smell of sulfur. The first eruption was a single explosive burst that lasted about three hours and ...
... before the 1952 eruption, plumes of white steam were observed rising from the summit of the crater. In the summer of 1952, local inhabitants reported an increase in the output of steam and an increased smell of sulfur. The first eruption was a single explosive burst that lasted about three hours and ...
VolcanicHazards2
... neighborhoods, such as the one shown here, can be evacuated. Buildings and other human-made structures are not so lucky! ...
... neighborhoods, such as the one shown here, can be evacuated. Buildings and other human-made structures are not so lucky! ...
chapter_7_volcanoes
... surface. However, very fluid lava may reach the surface and harden into a horizontal layer. Videos Volcano 101 Geological Journey (start at about 28:00 mark) ...
... surface. However, very fluid lava may reach the surface and harden into a horizontal layer. Videos Volcano 101 Geological Journey (start at about 28:00 mark) ...
The Cascade Volcanoes - West Virginia University
... Young Juan de Fuca Plate is being subducted beneath North America – see handout ...
... Young Juan de Fuca Plate is being subducted beneath North America – see handout ...
Chapter 10
... pyroclastic material ejected from a single vent 8. Composite Cone= Volcano composed of both lava flow’s and pyroclastic material 9. Caldera= Large depression typically caused by collapse or ejection of the summit area of a volcano ...
... pyroclastic material ejected from a single vent 8. Composite Cone= Volcano composed of both lava flow’s and pyroclastic material 9. Caldera= Large depression typically caused by collapse or ejection of the summit area of a volcano ...
Eruption
... Mt. Saint Helens In early 1980, Mount St. Helens started to experience shallow earthquake swarms and a bulge appeared on its northern slope. These are both evidence that magma is moving upward and collecting within the volcano. So, geologists everywhere were in a frenzy, trying to monitor everythin ...
... Mt. Saint Helens In early 1980, Mount St. Helens started to experience shallow earthquake swarms and a bulge appeared on its northern slope. These are both evidence that magma is moving upward and collecting within the volcano. So, geologists everywhere were in a frenzy, trying to monitor everythin ...
Volcanic Misconceptions State whether each statement is true or false
... 3.All intrusive igneous rocks are exposed because of weathering/erosion. 4.Granite is a common rock in the Hawaiian islands. 5.One would expect to find piles of pumice in and around mafic volcanic sites. 6.Lava kills the most people during volcanic eruptions. 7.Lahars only happen when it rains after ...
... 3.All intrusive igneous rocks are exposed because of weathering/erosion. 4.Granite is a common rock in the Hawaiian islands. 5.One would expect to find piles of pumice in and around mafic volcanic sites. 6.Lava kills the most people during volcanic eruptions. 7.Lahars only happen when it rains after ...
F08 5 Emplacement
... Fast – frequent eruptions from same vent Slow – vents solidify, more explosive ...
... Fast – frequent eruptions from same vent Slow – vents solidify, more explosive ...
Volcano Facts
... tremendous volumes of magma that did not erupt but instead cooled below the surface. Volcanic ash can increase soil fertility ...
... tremendous volumes of magma that did not erupt but instead cooled below the surface. Volcanic ash can increase soil fertility ...
Mount Pinatubo
Mount Pinatubo (Filipino: Bundok Pinatubo) is an active stratovolcano in the Cabusilan Mountains on the island of Luzon, near the tripoint of the Philippine provinces of Zambales, Tarlac, and Pampanga. Before the volcanic activities of 1991, its eruptive history was unknown to most people. It was heavily eroded, inconspicuous and obscured from view. It was covered with dense forest which supported a population of several thousand indigenous people, the Aetas, who fled to the mountains during the Spanish conquest of the Philippines.The volcano's Plinian / Ultra-Plinian eruption on 15 June 1991 produced the second largest terrestrial eruption of the 20th century after the 1912 eruption of Novarupta in the Alaska Peninsula.Complicating the eruption was the arrival of Typhoon Yunya (Diding), bringing a lethal mix of ash and rain to areas surrounding the volcano. Successful predictions at the onset of the climactic eruption led to the evacuation of tens of thousands of people from the surrounding areas, saving many lives, but the surrounding areas were severely damaged by pyroclastic flows, ash deposits, and subsequently, by the lahars caused by rainwaters re-mobilizing earlier volcanic deposits causing extensive destruction to infrastructure and changing the river systems months to years after the eruption.The effects of the eruption were felt worldwide. It ejected roughly 10,000,000,000 tonnes (1.1×1010 short tons) or 10 km3 (2.4 cu mi) of magma, and 20,000,000 tonnes (22,000,000 short tons) SO2, bringing vast quantities of minerals and metals to the surface environment. It injected more particulate into the stratosphere than any eruption since Krakatoa in 1883. Over the following months, the aerosols formed a global layer of sulfuric acid haze. Global temperatures dropped by about 0.5 °C (0.9 °F) in the years 1991-93, and ozone depletion temporarily increased substantially.