Voight's fulfilled prediction that an avalanche at St . Helens could provoke a lateral eruption, an eruption from the volcano's flank rather than its summit, attracted the attention of the government of Montserrat.
2.
Prior to its collapse due to a lateral eruption to the northeast ( around 200, 000 years ago ) and subsequent glacial erosion, the San Francisco Peaks fully matured elevation is estimated to have been around 16, 000 feet.
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