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Landslide Hazards - Data and Tools

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Inventory of rock avalanches in the central Chugach Mountains, northern Prince William Sound, Alaska, 1984-2024 Inventory of rock avalanches in the central Chugach Mountains, northern Prince William Sound, Alaska, 1984-2024

In the Prince William Sound region of Alaska, recent glacier retreat started in the mid-1800s and began to accelerate in the mid-2000s in response to warming air temperatures (Maraldo and others, 2020). Prince William Sound is surrounded by the Chugach Mountains and has numerous ocean-terminating glaciers, with rapid deglaciation increasingly exposing oversteepened bedrock walls of...

Inventory of debris flows in burned (2020-2022) and unburned (1995-2020) areas in the western Cascade Range of Oregon Inventory of debris flows in burned (2020-2022) and unburned (1995-2020) areas in the western Cascade Range of Oregon

This data release contains two debris-flow inventories summarizing observations from burned and unburned areas in the western Cascade Range of Oregon (OR). The burned inventory focuses on debris flows that occurred during the first two years after the 2020 Archie Creek, Holiday Farm, Beachie Creek/Lionshead, and Riverside fires (OR_field_observations.csv). The unburned inventory (1995...

Rock mass quality and structural geology observations in Glacier Bay National Park and Preserve, Alaska from the summers of 2021 and 2022 Rock mass quality and structural geology observations in Glacier Bay National Park and Preserve, Alaska from the summers of 2021 and 2022

Subaerial and submarine landslides adjacent to, and within, Glacier Bay, Glacier Bay National Park and Preserve (GBNPP), Alaska pose a threat to the public because of their potential to generate ocean waves that could impact marine activities. Although historical records of tsunamis generated by landslides in GBNPP are uncommon, there are records that document the destructive power of at...

Postfire erosion estimates for large California wildfires that occurred between 1984 and 2021 Postfire erosion estimates for large California wildfires that occurred between 1984 and 2021

This data release presents a compilation of postfire sediment mobilization data from wildfires greater than 100 km2 that occurred in California or regions of southern Oregon that drain to the California coast between 1984 and 2021. This compilation includes three sources of sediment mobilization data: hillslope erosion modeled using the Water Erosion Prediction Project (WEPP) postfire...

Compilation of runoff-generated debris-flow inventories for 18 fires across Arizona, California, Colorado, New Mexico, Utah, and Washington, USA Compilation of runoff-generated debris-flow inventories for 18 fires across Arizona, California, Colorado, New Mexico, Utah, and Washington, USA

Description This data release is an inventory of runoff-generated postfire debris flows compiled from 18 burn areas across six western U.S. states. Debris-flow data from the following fires are included: Arizona: 2019 Museum, 2021 Flag, and 2022 Pipeline Fires California: 2014 Silverado, 2015 Valley, 2019 Briceburg, 2020 Dolan, 2020 El Dorado, 2020 Lake, and 2021 Dixie Fires Colorado...

Debris Flow, Precipitation, and Volume Measurements in the Grizzly Creek Burn Perimeter June 2021-September 2022, Glenwood Canyon, Colorado (ver. 1.1, October 2023) Debris Flow, Precipitation, and Volume Measurements in the Grizzly Creek Burn Perimeter June 2021-September 2022, Glenwood Canyon, Colorado (ver. 1.1, October 2023)

This data release contains data summarizing observations within and adjacent to the Grizzly Creek Fire, which burned from 10 August to 18 December 2020. This monitoring data summarizes precipitation, observations of debris flows, and the volume of sediment eroded during debris flows triggered during the summer monsoonal period in 2021 and 2022. Summary rainfall data 2021 (1a_Storm_matrix...

Landslide Inventory for Chuuk, Federated States of Micronesia (FSM) 2003 - 2022 Landslide Inventory for Chuuk, Federated States of Micronesia (FSM) 2003 - 2022

Landslides hazards pose a serious threat to people and infrastructure in the Federated States of Micronesia (FSM). To develop a comprehensive understanding of the landslides hazards in FSM, the USGS-USAID Landslide Disaster Assistance Team (LDAT) has put together landslide inventories for each state using satellite imagery. Mapping was done using RGB satellite imagery from Maxar, Planet...

Results from additional dynamic cone penetration testing of soils on the Utuado Batholith, upland and dissected terrains, Puerto Rico - June 2022 Results from additional dynamic cone penetration testing of soils on the Utuado Batholith, upland and dissected terrains, Puerto Rico - June 2022

A Smart Dynamic Cone Penetrometer (DCP) system allows for the partially automated collection of cone penetrometer data (CPT) to determine mechanical properties of soil along a vertical profile. A smart DCP system was used to collect soil penetration-with-depth values alongside 12 soil pits dug in the Utuado Batholith, a late Cretaceous age granodiorite pluton located on the northern...

UAV imagery and digital elevation data for the debris slide in Chaos Canyon, 28 June 2022, Rocky Mountain National Park, Colorado. UAV imagery and digital elevation data for the debris slide in Chaos Canyon, 28 June 2022, Rocky Mountain National Park, Colorado.

This dataset contains a point cloud (HalletPeak_PointCloud.las), digital elevation model (HalletPeak_DEM.tif), and orthoimagery (HalletPeak_Ortho.tif) of a debris slide originating on the southeast flank of Hallett Peak and sliding into Upper Chaos Canyon in Rocky Mountain National Park, Colorado, USA. The slide occurred on 28 June 2022, and imagery was obtained on 15 July 2022. These...

digger: A python package for D-Claw model inputs digger: A python package for D-Claw model inputs

Digger is a python package that provides a number of pre- and post-processing tools for working with the D-Claw model.

Engineering Soil Classification and Geotechnical Measurements in Lares, Naranjito, and Utuado, Puerto Rico Engineering Soil Classification and Geotechnical Measurements in Lares, Naranjito, and Utuado, Puerto Rico

The data includes soil texture, soil-water, and estimated soil strength properties for soil map units and from geotechnical investigations of landslide areas affecting highways in the municipalities of Lares, Naranjito, and Utuado, Puerto Rico.

Inventory of Large Slope Instabilities, Prince William Sound, Alaska Inventory of Large Slope Instabilities, Prince William Sound, Alaska

Steep glacial and paraglacial landscapes often exhibit evidence of gravitationally-driven slope deformation. In recently deglaciated coastal environments, catastrophic failures of these bedrock instabilities as rapid landslides have the potential to generate tsunamis that may pose hazards for communities, infrastructure, mariners, and important natural and cultural resources. We present...
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