![]() Or, after a change from higher alert level: YELLOW: Volcano is experiencing signs of elevated unrest above known background levels. ![]() Volcanic activity considered to have ceased, and volcano reverted to its normal, non-eruptive state. Or, after a change from a higher alert level: GREEN: Volcano is in normal, non-eruptive state. GREY: Volcano appears quiet but is not monitored adequately.
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