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Landslide and Debris-Flow Event Summaries

Landslide and Debris-Flow Event Summaries

Filter Total Items: 7

Cameron Peak, Colorado, Fire: Flooding and Debris Flows - July 20, 2021

On Thursday, August 13, 2020, at approximately 1:45 PM MDT, the Cameron Peak fire was reported in steep, rugged terrain 15 miles southwest of Red Feather Lakes, Colorado, near Cameron Pass. The fire spread rapidly due to extreme temperatures, strong winds, and high fuel loads. The largest wildfire in Colorado history, the Cameron Peak fire burned 845 square kilometers (sq km) on the Arapaho and...
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Cameron Peak, Colorado, Fire: Flooding and Debris Flows - July 20, 2021

On Thursday, August 13, 2020, at approximately 1:45 PM MDT, the Cameron Peak fire was reported in steep, rugged terrain 15 miles southwest of Red Feather Lakes, Colorado, near Cameron Pass. The fire spread rapidly due to extreme temperatures, strong winds, and high fuel loads. The largest wildfire in Colorado history, the Cameron Peak fire burned 845 square kilometers (sq km) on the Arapaho and...
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Glenwood Canyon, Colorado, Flooding and Debris Flows: 2021

Summer storms on the Grizzly Creek burn area have resulted in repeated flooding and debris flows that are having enormous impacts in Glenwood Canyon. This Story Map collection summarizes the June and July events.
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Glenwood Canyon, Colorado, Flooding and Debris Flows: 2021

Summer storms on the Grizzly Creek burn area have resulted in repeated flooding and debris flows that are having enormous impacts in Glenwood Canyon. This Story Map collection summarizes the June and July events.
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Bond Fire Debris Flows, California: January 25 and 28, 2021

On Wednesday, December 2, 2020 at approximately 10:15 PM PST, the Bond wildfire ignited in Orange County, California, burning partially within the Cleveland Forest, near Silverado Canyon just north of the area burned by the October 2020 Silverado fire. The fire burned 27 square kilometers (sq km) prior to containment on December 10, 2020 (CalFire). Fuels were primarily chaparral, brush, and tall...
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Bond Fire Debris Flows, California: January 25 and 28, 2021

On Wednesday, December 2, 2020 at approximately 10:15 PM PST, the Bond wildfire ignited in Orange County, California, burning partially within the Cleveland Forest, near Silverado Canyon just north of the area burned by the October 2020 Silverado fire. The fire burned 27 square kilometers (sq km) prior to containment on December 10, 2020 (CalFire). Fuels were primarily chaparral, brush, and tall...
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Northern and Central California Debris Flows - January 2021

An atmospheric river (AR) moved into California late on the evening of January 26, 2021, bringing intermittent heavy rainfall that resulted in flooding, debris flows, and heavy snowfall at high elevations.
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Northern and Central California Debris Flows - January 2021

An atmospheric river (AR) moved into California late on the evening of January 26, 2021, bringing intermittent heavy rainfall that resulted in flooding, debris flows, and heavy snowfall at high elevations.
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Tadpole Fire Debris Flows, New Mexico: July and September 2020

On Saturday, June 6, 2020 at approximately 1:45 PM MDT, the Tadpole wildfire ignited in the Gila National Forest, approximately 19 kilometers (km) north of Silver City, Grant County, New Mexico. The fire burned 45 square kilometers prior to containment in early July, 2020 (Inciweb). Fuels were primarily timber with grass understory, brush, and chaparral. The Brush, Bringham, and Bighorn fires in...
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Tadpole Fire Debris Flows, New Mexico: July and September 2020

On Saturday, June 6, 2020 at approximately 1:45 PM MDT, the Tadpole wildfire ignited in the Gila National Forest, approximately 19 kilometers (km) north of Silver City, Grant County, New Mexico. The fire burned 45 square kilometers prior to containment in early July, 2020 (Inciweb). Fuels were primarily timber with grass understory, brush, and chaparral. The Brush, Bringham, and Bighorn fires in...
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Woodbury Fire, Arizona Debris Flows - September 2019

On Saturday, June 8, 2019 at approximately 1:30 PM MST, the Woodbury wildfire ignited approximately 8 kilometers (km) northwest of Superior, Arizona. The 7th largest wildfire in Arizona’s recorded history, the fire burned 501 km2 prior to containment on July 15, 2019. The fire occurred within the Superstition Wilderness of the Tonto National Forest. The wilderness area extends from the...
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Woodbury Fire, Arizona Debris Flows - September 2019

On Saturday, June 8, 2019 at approximately 1:30 PM MST, the Woodbury wildfire ignited approximately 8 kilometers (km) northwest of Superior, Arizona. The 7th largest wildfire in Arizona’s recorded history, the fire burned 501 km2 prior to containment on July 15, 2019. The fire occurred within the Superstition Wilderness of the Tonto National Forest. The wilderness area extends from the...
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Overview of Rainfall-Induced Landslides

The most frequent and widespread damaging landslides in the U.S. are induced (started) by prolonged or heavy rainfall. The majority of rainfall-induced landslides are shallow (less than a few meters deep), small, and move rapidly. Many rainfall-induced landslides transform into debris flows (fast-moving slurries of water, soil, and rock) as they travel down steep slopes, especially those that...
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Overview of Rainfall-Induced Landslides

The most frequent and widespread damaging landslides in the U.S. are induced (started) by prolonged or heavy rainfall. The majority of rainfall-induced landslides are shallow (less than a few meters deep), small, and move rapidly. Many rainfall-induced landslides transform into debris flows (fast-moving slurries of water, soil, and rock) as they travel down steep slopes, especially those that...
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