Scientists at UW's Cabled Array, one of the world's largest ocean observatories monitoring this active volcano, have seen potential eruption signs in recent months.

Scientists at UW's Cabled Array, one of the world's largest ocean observatories monitoring this active volcano, have seen potential eruption signs in recent months.

On June 14, 1914, three men climbed Lassen Peak to see why a seemingly dormant volcano had started rumbling 16 days before. Now, peering into a newborn crater, they felt the ground tremble.

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