Video

Aftermath of the 1996 Happy Isles Rockfall

Yosemite National Park

Description

Footage taken after the 1996 rockfall at Happy Isles. On July 10, two blocks with a combined volume of about 30,000 cubic meters and weighing about 90,000 tons broke loose from near Glacier Point, hitting the valley floor near Happy Isles. The impacts generated an airblast with wind speeds up to 280 miles per hr. The wind uprooted and snapped about one thousand trees, which damaged buildings and caused one fatality and several serious injuries. A dense cloud of pulverized rock blanketed the area with dust.

Duration

4 minutes, 31 seconds

Date Created

07/10/2021

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