The Portuguese Bend landslide in California involved
A) gradual, continuous, downslope movement over a 30 year time period that resulted in damage to many homes.
B) a volcanic mudflow that killed over 20,000 people despite prior warnings of an imminent landslide threat.
C) an enormous debris slide that created a giant wave which killed ~2,500 people in a matter of a few minutes.
D) heavy rains in an area of folded and fractured limestone bedrock with clay layers and underground caves.

Question

Quizplus · Accepted Answer

The Portuguese Bend landslide, which began in 1956, is characterized by gradual, continuous movement that has caused significant damage to property over the years. It is a classic example of a slow-moving landslide, primarily influenced by factors such as geology, groundwater, and human activities rather than a single catastrophic event.

The Portuguese Bend Landslide in California Involved