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thin layers of the Earth's crust


the meeting and joining of the thin layers of the Earth's crust called plates


an unplanned fire that starts outdoors


an unusually large sea wave produced by a seaquake or undersea volcanic eruption


an opening in the earth's crust from which lava, ash, and hot gases flow or eject during an eruption


the ejection of molten rock or steam from a volcano


rapidity of motion or swiftness; speed


a series of vibrations in the earth's crust caused by the rupture and rebound of rocks in which the strain on the crust has been slowly accumulating


a specifically defined division when talking about hurricanes

richter scale

a method to measure a seismogram for the magnitude (STRENGTH) of an earthquake


a localized, violently destructive windstorm occurring over land


an overflowing of water into land that is normally dry


an informal word for whirlwind or tornado


a severe tropical wind storm usually with heavy rains and winds... they lose force when moving onto lands or colder waters


the condition of being destroyed


existing in or formed by nature


an occurence causing widespread destruction and distress; catastrophe

non-natural disaster

a disaster caused by humans. Ex. terrorism, wildfires, biohazard

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