“scientific study of the origin‚ history and structure of the earth”. It involves understanding earth’s processes‚ materials and its effects on all forms of life. From earth elements such as rocks and mountains to natural phenomenon such as volcanoes and earthquakes‚ the field of geology encompasses a wide range of concepts fundamental to many professions and to civilization in general. Scientific disciplines such as civil engineering and environmental sciences‚ for instance‚ rely on a deeper understanding
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include floods‚ severe weather‚ volcanic eruptions‚ earthquakes‚ and other geologic processes. A natural calamity can cause loss of life or property damage‚ and typically leaves some economic damage in its wake‚ the severity of which depends on the affected population’s resilience‚ or ability to recover. A natural calamity are the side effects or the after effects of natural issues or hazards like flood‚ volcanic erosion‚ land slide or earthquake which will lead to the human‚ monetary and environmental
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disasters: Man made disasters- Garbage patch‚ plants‚ bombs‚ factories‚ oil spills Natural disasters- Cyclone‚ tsunami‚ volcanoes‚ flood‚ hurricane‚ earthquake SCALES: Mercalli scale- intensity (observe Richter scale- magnitude ( measuring sesmic waves) What scale is used to measure earthquakes: Seismometer/ seismograph- record earthquakes Seismogram- a graph What are earthquakes? P s Violent shaking on the ground Tectonic drift theory: the continental drift theory is the theory that once
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forces are largely outside the control of the people whom it effect. Some of the natural disasters include earthquakes which occur in seconds‚ cyclones and landslides in minutes‚ flash floods and tsunamis in hours‚ and volcanoes in weeks. Some of these disasters can be predicted well in advance‚ these include cyclones‚ tsunamis‚ volcanoes etc. Some cannot be predicted like earthquakes‚ flashfloods‚ and landslides. The flashflood followed by landslides that occurred in Uttarakhand could
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to explain the distribution of earthquakes‚ volcanoes and Fold Mountains‚ it states that the earth’s core consists of semi molten magma and the earth’s surface or crust sits on top of the magma and moves to heat produced by the decay of radioactive isotopes and friction in the core. It is at the boundaries of these ‘plates’ where we find evidence for the idea of plate tectonic theory. Here many features are formed such as volcanoes and Fold Mountains‚ earthquakes are less visible but are still processes
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the continents do move a couple of centimetres each year and so far they have been moving in constant unchanging directions thus giving a good hint that this part of proof toward the theory is true. It had been known for some time that earthquakes and volcanoes that exist in a line were connected‚ with the exception of places such as Hawaii and other small islands. This puzzled scientists until the tectonic
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Discuss” Throughout this essay I will be discussing my view on the extent to which I think tectonic processes represent hazards depending on when and where they are experienced. My view is that the hazards caused by tectonic processes such as volcanoes and earthquakes are very much likely to have a bigger impact socially‚ environmentally and economically depending on where they had occurred and when. In the next few paragraphs I will discuss how the factor ‘WHEN’ tectonic processes occur represents hazards
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A natural hazard can be defined as‚ “…a potentially dangerous environmental event which impacts on a human population. Moreover natural hazards emerges from environmental activities which are uncontrollable such as Internal Geodynamics (earthquakes and volcanoes)‚ External Geodynamics (Landslides‚ erosion and flooding)‚ and Hydrometeorology (cyclones‚ drought‚ and hurricanes)”. (Good Practices: Natural Hazard Risk Management in the Caribbean Tourism Sector) A natural disaster can be defined as‚ “…a
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Disadvantages: Sea - during a volcanic eruption earthquakes happen‚ and tsunamis may be created. Also‚ if it is a volcanic island‚ the island may be destroyed‚ and there is no escape. Lava flow - these are very slow moving‚ but destructive as they cannot be stopped and they set fire to everything in their path. Pyroclastic flow - these are impossible to outrun‚ travelling at about 300 km/h‚ and are extremely destructive Mudflow/lahar - these are mud rivers that have the consistency of cement
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spot. The Philippines are exposed to more than 2 hazards‚ geophysical and hydro-meteorological such as earthquakes and tropical storms these hazards are more affective as he Philippines is known for having a vulnerable‚ poor‚ population meaning it has a lower capacity to cope. The Philippines are largely affected by geophysical hazards‚ mainly by tectonic hazards such as earthquakes and volcanoes‚ these hazards occur due to the Philippines geographical location‚ it is located between 2 destructive
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