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How long is the eruption likely to last? It's so difficult to tell. The last eruption is very similar to this one. It erupted from the central crater from December 1821 and went to January 1823. I'm not sure the magnitude of the eruption was the same all along. But it's really, really tough to predict. The local scientists are working on that now. They've collected samples of the ash to analyze to get a sense of whether the chemistry is similar to the last eruption. But that takes time. I think it's too soon to say too much about what's really happening there.