Sinabung (Sumatra, Indonesia): Just few days after the official alert level had been decreased, a massive explosion occurred during the last night at 02:53 local time, generating an ash plume that rose to possibly up to 15 km altitude (50,000ft). The height of the plume was estimated by VAAC Tokio using satellite imagery. It quickly drifted and dissipated in southerly directions. Even if the…
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