Mount Steele Rock and Ice Avalanche Event Chronology and Simulation

A large rock and ice avalanche on Mount Steele in Yukon, Canada, occurred on July 24, 2007. The event traveled 5.76 km horizontally, descended 2,160 m vertically, and deposited debris over 3.66 km² on Steele Glacier. The Government of Yukon produced this dataset based on field reconnaissance, seismic analysis, and LiDAR surveys.

Use Cases

• Model landslide dynamics based on the described event chronology and seismic magnitude.
• Analyze avalanche impact zones based on the deposit area and vertical descent measurements.
• Compare event characteristics with other large rock avalanches in western Canada since 1899.
• Validate dynamic simulation models using the results of the successful simulation presented.

Strengths

• Includes specific event metrics: 5.76 km horizontal travel, 2,160 m vertical descent, 3.66 km² deposit area.
• Provides seismic magnitude (M s 5.2) and estimated event duration (~100 s) from waveform modeling.
• Integrates data from multiple sources: field reconnaissance, seismic records, and airborne LiDAR survey.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Government of Yukon

Collection Method

Field reconnaissance, analysis of seismic records, and an airborne LiDAR survey.

Time Range

July 24, 2007 (primary event), with preceding days and weeks.

Freshness

Last updated 2026-04-17 15:51:19.382380; freshness should be verified.

Geography

Mount Steele, St. Elias Mountains, Yukon, Canada.