Uploaded May 2020 | Updated September 2026, 1 week ago
Landslides occur when material like debris, rock, and soil become dislodged from the earth and slide downward at speeds that can approach 100 miles per hour. David Montgomery at the University of Washington studies past and present landslides to try to understand what causes them. "When Nature Strikes" is produced by NBC News Learn in partnership with the National Science Foundation.
Landslides occur when material like debris, rock, and soil become dislodged from the earth and slide downward at speeds that can approach 100 miles per hour. David Montgomery at the University of Washington studies past and present landslides to try to understand what causes them. "When Nature Strikes" is produced by NBC News Learn in partnership with the National Science Foundation.
