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・ Volcano harvest mouse
・ Volcano Hazards Program
・ Volcano High
・ Volcano High Prelude
・ Volcano House
・ Volcano House, Iceland
・ Volcano hummingbird
・ Volcano Islands
・ Volcano junco
・ Volcano Lake
・ Volcano Live
・ Volcano mine system
・ Volcano Mountain
・ Volcano mouse
・ Volcano Number
Volcano observatory
・ Volcano Palinuro
・ Volcano Park, Mayen-Koblenz
・ Volcano plot
・ Volcano plot (statistics)
・ Volcano rabbit
・ Volcano Ranch experiment
・ Volcano rocks
・ Volcano School
・ Volcano shrew
・ Volcano Songs
・ Volcano Suns
・ Volcano surfing
・ Volcano swiftlet
・ Volcano tectonic earthquake


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Volcano observatory : ウィキペディア英語版
Volcano observatory
A volcano observatory is an institution that conducts research and monitoring of a volcano.
Each observatory provides continuous and periodic monitoring of the seismicity, other geophysical changes, ground movements, volcanic gas chemistry, and hydrologic conditions and activity between and during eruptions. They also provide a detailed record of eruptions in progress.
==Monitor==

These observations serve to characterize eruptive behavior, identify the nature of precursory activity leading to eruption, define the processes by which different types of deposits are emplaced, and specify the hazards that could be unleashed by each kind of eruption. From direct observation of precursory signs, it is possible to anticipate eruptions. In times of volcanic unrest, observatories issue warnings and recommendations - they take on an advisory role for decision-making governmental civil defense agencies (the Federal Emergency Management Agency in the U.S.) and ideally continue producing observational data.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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