an solfataric active volcano and a volcanic island located in Biliran Province of the Eastern Visayas Region (Region VIII)‚ in Visayasislands group of the central Philippines. It is one of the active volcanoes in the Philippines. Biliran volcano comprises the whole 20x35 km Island of Biliran which is formed by a group of lava domes. It is located across the narrow Biliran Strait from the northern tip of Leyte Island. Biliran volcano is at the northern end of a 170 km long volcanic chain extending SSE to Panaon
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earth’s crust that allows hot magma‚ volcanic ashes and gases to escape from below the earth’s surface. This usually happens where the tectonic plates are diverging or converging‚ but can also appear where the earth’s crust is thin and stretched. Tectonic plates are the large scale motion of earth’s lithosphere. An eruption happens when thick magma and large amounts of gas build up under the surface. During a volcanic eruption‚ lava‚ tephra (ash‚ lapilli‚ volcanic bombs and blocks)‚ and various gases
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Discuss volcanic hazards. Although commonly thought to be associated with most volcanic eruptions (by the general public)‚ lava is rarely responsible for the loss of life. Which hazards would tend to be more deadly? Finally‚ indicate and discuss those hazards that are a direct result of a volcanic eruption as well as those hazards that are indirectly linked. (Hint: think of indirectly associated” hazards as “side effects.”) Some of volcanic hazards include gases‚ lava and pyroclastic
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reserved forest reserve of the ocean and a mountain. This section includes new landscapes created by fresh lava. The national park has this section because “... so the traveler can experience transitions from substantially untouched to well vegetated volcanic terrain and rainforest.” (Source 3: On the Slopes of Mauna Loa‚ Hawaii Island) In the south slope it has Waiohinu Valley that goes to the ocean and shows a great view of Kilauea Volcano. The last slope in the east shows the main entrance to the national
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most active volcanic zone is the Pacific Ring of Fire around the Pacific plate. Here plates are colliding or separating. At active points on these plates volcanic mountains are formed‚ e.g. Nazca Plate and South American Plate‚ where plates separate‚ e.g. Pacific and Nazca Plate and in rift valleys‚ e.g. African Plate‚ Kenya. The most active area on the globe is the western rim of the Pacific Plate - stretching from Russia to New Zealand.Several findings relating to earthquakes and volcanic activity
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mountains. Composite volcano Composite volcanoes are made up of alternating layers of lava and ash (other volcanoes just consist of lava). They are usually found at destructive or compressional boundaries. Cone They are the build-up of rock from the volcanic vent; it piles up in the shape of a cone with a central crater. Conservative plate boundary a plate boundary where the relative movement of the two crustal plates is lateral‚ or past each other Constructive boundary a plate boundary where the relative
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June 2010 The hazards presented by volcanic and seismic events have the greatest impact on the world’s poorest people.” To what extent do you agree with this view? PLAN: 1. What is a hazard- volcanic hazards include tephra‚ lava‚ pyroclastic flows‚ volcanic bombs and seismic hazards include earthquake‚ tsunami‚ liquefaction‚ landslides 2. Human issues- proximity to lowland coast‚ ability to adapt to change‚ socioeconomic effects‚ impacts within a community‚ difference in rich and poor‚ urban and
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A natural disaster is the effect of a natural hazard (e.g.‚ flood‚ tornado‚ hurricane‚ volcanic eruption‚ earthquake‚ heatwave‚ or landslide). It leads to financial‚ environmental or human losses. The resulting loss depends on the vulnerability of the affected population to resist the hazard‚ also called their resilience. if these disasters continues it would be a great danger for the earth.[1] This understanding is concentrated in the formulation: "disasters occur when hazards meet vulnerability
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enter the kingdom of the dead. The Sahara desert covers around 9‚000‚000 square kilometers and the overall area is as large as the continental United States. The Sahara desert also has the reputation of being the world’s largest hot desert. The landforms in this desert often
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Geography…. RIVERS Graded long profile (only briefly mentioned‚ you could do with more info) Recurrence intervals / magnitude frequency analysis for flooding is not mentioned COASTS Wave refraction Sediment cells Concordant / discordant coastlines Landforms: geo’s‚ stumps‚ tombolo’s‚ barrier islands. Coastal flooding- the CGP guide says tsunami but the syllabus wants storm surges so hurricane Katrina. POPULATION Factors affecting birth and death rates Optimum population Migration case studies Optimum
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