Events

Not Sponsored by the PCS

Lassen Peak, the southernmost active volcano in the Cascade Range,explosively erupted in 1915, devastating nearby areas and raining volcanic ash as far away as 200 miles to the east.

Lassen National Park, in addition to prominent volcanic areas,contains the most spectacular array of thermal features in the Cascade Range including fumaroles, bubbling mud pots, and a boiling lake.

A new USGS map shows volcanic centers in unprecedented detail,enabling development of products to better evaluate and assess regional volcanic hazards.