Feb 28, 2015 · This explosion was the most powerful in a 1914-17 series of eruptions that were the last to occur in the Cascades before the 1980 eruption of Mt. St. Helens. Lassen Peak is …

On May 30, 1914, Lassen Peak awoke from a 27,000-year-long slumber when it was shaken by a steam explosion. That first explosion created a small crater at the summit of Lassen Peak, and …

On May 22, 1915, a powerful explosive eruption at Lassen Peak devastated nearby areas, and spread volcanic ash as far as 280 mi (450 km) to the east. This explosion was the most …

Oct 22, 2023 · On May 22, 1915, an explosive eruption at Lassen Peak, California, the southernmost active volcano in the Cascade Range, devastated nearby areas and rained …

May 22, 2019 · Mount Lassen was awake for just over three years, from that first blowout in May 1914 until a final burp in June 1917. It climaxed in a proper eruption, with red-hot lava and …

On May 30, 1914, Lassen Peak awoke from a 27,000-year-long slumber when it was shaken by a steam explosion. Such steam blasts occur when molten rock (magma) rises toward the …

Jan 20, 2001 · On May 22, 1915, an explosive eruption at Lassen Peak, California, the southernmost active volcano in the Cascade Range, devastated nearby areas and rained …

The Lassen Peak eruptions of 1914-1917 were the first volcanic eruptions to occur in the lower 48 states in the 20th Century, and it was the first active mainland volcano ever to be …

Lassen Peak in northern California produced a series of eruptions during 1914–17. The larg-est of those eruptions, on May 22, 1915, blasted rock fragments and pumice high into the air and …

Aug 28, 2024 · On Sunday, June 14, three eruptions occurred, one which sent an ashen plume of smoke some 2500 feet above the summit. Lassen kept performing, with 110 eruptions …