| Sporadic explosions, ashfall, and an erupting lava flow are clear signs that the volcano is not yet finished. |
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| After lying inactive for more than 70 years, Popocatépetl erupted in December 1994, causing an ashfall over Puebla. |
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| There was some talk of ashfall, but there had been ashfall in Western Washington from the minor eruptions. |
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| The Harvey Mountain Formation, the uppermost unit of the Harvey group, is a 75-100 m thick sequence composed of rhyolites that are intercalated with minor ashfall tuffs. |
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| In produced a column of 1,500 metres and ashfall was up to Maebashi City which is 150 kilometres away. |
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