Authorities issued a volcano warning Saturday for Mount Asama in central Japan after earthquakes were detected in the area.
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The Meteorological Agency maintained its activity rating for Mount Asama at 3, meaning that a small-to medium-sized eruption has occurred.
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Thirteen volcanoes, including Mount Asama about 150 kilometers ( 93 miles ) west of Tokyo, are in the riskiest group.
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The Meteorological Agency maintained its activity rating for Mount Asama at 3 on a scale of 5, designating small-to medium-sized eruptions.
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The Japan Meteorological Agency classifies Mount Asama as rank A . It stands above sea level on the border of Asama ".
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The Meteorological Agency maintained its activity rating for Mount Asama at 3 on a scale of 5, designating a small-to medium-sized eruption.
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One of Japan's largest and most active volcanoes, Mount Asama repeatedly rumbled with small eruptions throughout the day, the Meteorological Agency said.
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The agency maintained its activity rating for Mount Asama at 3 on a scale of 5, meaning more small-to-medium eruptions could occur.
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Meteorological experts last year warned of Mount Asama's possible eruption after detecting temperature increases inside the crater and smoke pouring from the mountaintop.
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The town lies at the foot of Mount Asama, one of many active volcanoes in Japan ( it hasn't erupted since 1783 ).
