The Meteorological Agency managed to issue a warning to municipalities about 13 hours before the eruption early Monday of Mount Asama, boasting its first successful alert since it started up the system in December 2007.
The agency alerted the municipalities of Miyota, Karuizawa and Komoro, all in Nagano Prefecture, and Tsumagoi, Gunma Prefecture, at 1 p.m. Sunday that the volcano warning level had been upgraded to 3 from 2, according to agency volcano department official Sadayuki Kitagawa.
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