Or, the water may soak into the ground, and later move down as a debris flow.
In the past, Garibaldi has had large debris flows.
Two earlier debris flows, around 4,450 and 7,300 years ago, sent rubble at least 32 kilometers from the volcano.
This means that previous debris flows were even larger than those in December 1999 and reached higher velocities.
Tells about famous chaparral fires which have led to debris flows.
By then the town had been almost deserted, and the debris flow marked the end of Swansea.
The debris will continue to travel along the ocean floor as a debris flow.
Getting out of the path of a debris flow is your best protection.
Landslides and debris flows are possible during this flood event.
The damage caused by the debris flow, was large.
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