Near Shingletown in Shasta County, California — The American West (Pacific Coastal)
[Two markers, side-by-side, describe the events that created the Devastated Area.]
You are standing in the aftermath of the volcanic destruction known as the Devastated Area. Late on the evening of May 19, 1915, a large steam explosion shattered the lava that filled Lassen Peak’s crater the previous days. Glowing blocks of hot lava fell on the summit and snow-covered upper flanks of the volcano. The impact touched off an avalanche of snow and lava rocks a half-mile wide. It roared down the volcano’s flank in front of you and continued up and over Emigrant Pass behind you.
As the lava blocks broke into fragments, the snow melted, creating a mudflow and volcanic debris, called a lahar. Though with less force, the torrent rushed down the path of the avalanche and was deflected by Emigrant Pass into Lost Creek, sweeping through homsteads.
In the night his dog barked, raved and stuck his paws against him...to wake him up. Elmer thought it might be...a bear
From Wid Hall’s account of the May 19, 1915, mudflow
The volcano’s crater welled up again with lava following the May 19th eruption. Like a lid covering a boiling pot, the pressure built. This time it erupted with even greater force. The blast hurled rock fragments and pumice (lava filled with gas bubbles) high into the air. A huge column of volcanic ash and gas rose more than 30,000 feet and could be seen 150 miles distant.
The falling pumice created yet another avalanche, a pyroclastic flow of hot ash, pumice, rock fragments, and gas. The avalanche rapidly gathered and melted snow in its path, transforming into a highly liquid lahar and following the path of the May 19th lahar or mudflow. It rushed miles down Lost Creek, flushing volumes of water into lower Hat Creek Valley once again.
Erected by Lassen Volcanic Nationsl Park, Department of the Interior, National Park Service.
Location. 40° 30.915′ N, 121° 27.917′ W. Marker is near Shingletown, California, in Shasta County. Marker can be reached from Touch for map. The markers are located in Lassen Volcanic National Park at Auto Tour Stop #11. This section of Highway 89 is closed during the winter months. Marker is in this post office area: Shingletown CA 96088, United States of America.
Other nearby markers. At least 8 other markers are within 6 miles of this marker, measured as the crow flies. Hot Rock (approx. ¼ mile away); Pluck and Carry (approx. 4.1 miles away); Bumpass’s Hell (approx. 4.4 miles away); Mt. Lassen/The Noble Pass/The Park Highway (approx. 4.6 miles away); Nobles' Emigrant Trail (approx. 4.6 miles away); Loomis Legacy (approx. 5.3 miles away); Stephen Tyng Mather (approx. 5.3 miles away); Cinder Cone Volcano and the Fantastic Lava Beds (approx. 5.9 miles away). Touch for a list and map of all markers in Shingletown.
Also see . . . Eruptions of Lassen Peak, California, 1914 to 1917 - USGS. On May 22, 1915, an explosive eruption at Lassen Peak, California, the southernmost active volcano in the Cascade Range, devastated nearby areas and rained volcanic ash as far away as 200 miles to the east. (Submitted on August 6, 2012, by Barry Swackhamer of San Jose, California.)
Additional keywords. volcanic eruption
Categories. • Disasters •
Credits. This page was last revised on June 16, 2016. This page originally submitted on August 6, 2012, by Barry Swackhamer of San Jose, California. This page has been viewed 485 times since then and 22 times this year. Photos: 1, 2, 3, 4, 5. submitted on August 6, 2012, by Barry Swackhamer of San Jose, California. • Syd Whittle was the editor who published this page.
Editor’s want-list for this marker. Photos of the aftermath evidence seen on the trail. • Can you help?