Add Yahoo as a preferred source to see more of our stories on Google. Image of active volcano shows magma pressure inside volcanoes can destabilize slopes and trigger collapse. (CREDIT: YouTube / CC ...
Emily Schwing: In 1912 a volcano in Alaska more than blew its top. Known as Novarupta, it was responsible for the most powerful volcanic eruption of the 20th century. Kristi Wallace: The reason we ...
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