What was most likely responsible for the slow slide of the Portuguese Bend on the Palos Verdes Peninsula?

What caused the Portuguese Bend landslide?

The primary problem in Portuguese Bend is the lack of drainage in Portuguese Canyon, which cuts across the landslide area.

Why is Palos Verdes prone to mass wasting?

The rock layers along this side of Palos Verdes Peninsula often dip at an angle that is nearly the same as the slope of the hillsides. This orientation is referred to as dip-slope and has contributed to mass rock movements probably as long as PVP has been rising out of the sea.

What strategy stabilized the Portuguese Bend landslide?

What strategy stabilized the Portuguese Bend landslide? Water drainage.

What was the Portuguese Bend?

The Portuguese Bend landslide, in coastal southern California, is an active, slow-moving mass of blocks and debris that extends from the shoreline to moderate altitudes along part of the southerly margin of the Palos Verdes Hills.

Who owns Portuguese Bend?

The owners include Luis and Brenda Navarro, who co-own two Lola’s Mexican Cuisine locations and The Social List in Long Beach, with Simon Haxton, a master distiller who has a degree in aerospace engineering, and Jim Leatherman and Josh Johnson, founders of the Long Beach-based Broken Homme Footwear and the clothing …

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Could an earthquake cause mass wasting?

Mass wasting is defined as the large movement of rock, soil and debris downward due to the force of gravity. … Earthquakes can also play a role in mass wasting due to the violent shaking they cause.

What type of mass wasting event is the Portuguese Bend landslide?

The term geologists use to describe when bedrock tilts in the same direction of the slope is called adverse bedding and is a major cause for mass wasting events such as landslides. The Portuguese Bend Landslide is a combination of an earthflow, rotational and translational slide.

Is Palos Verdes on bedrock?

Most of the geological reports I have had the pleasure to read state the majority of homes on the Palos Verdes Peninsula are built on bedrock. Not only is it one of the most beautiful regions in Southern California it is also one of the most stable, geologically speaking.

Was Palos Verdes a volcano?

The volcano heyday was in the middle Miocene, peaking around 15 million years or so ago. Some of these volcanoes dribbled basalt all over (and we see basalt layers here and there all over PV, including some pillow basalts formed when basalt erupted or flowed out into the sea).

Why are landslides more common on steep slopes?

A landslide occurs because the force of gravity becomes greater than either friction or the internal strength of the rock, soil, or sediment. … Pushing the rock is easier if the surface slopes downhill or is slippery. The same is true for landslides—steeper slopes have less friction, making landslides more common.

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Is it possible that the 1956 Portuguese Bend landslide was triggered entirely by natural causes?

Is it possible that the 1956 Portuguese Bend Landslide was triggered entirely by natural causes? Yes, it is possible that the 1956 Portuguese Bend landslide was triggered entirely by natural causes. This is because the area has been known historically to be very susceptible to landslides.

Is the Big W still there?

Finally, the park which is the home of the ‘Big W’ is revealed to have been filmed at Portuguese Point, a private park on the Rancho Palos Verdes coastline, southwest of Los Angeles. There is a distinctive chapel there also used often as a filming location, for instance, the wedding scene that concludes INNERSPACE.

What does the occurrence of a mass wasting event depend upon?

Ultimately, this comes down to the dynamics of two factors: gravity and steepness of slope. … There are several factors that influence mass wasting, but ultimately it is a battle between friction and gravity. If the friction on a rock is stronger than gravity for a particular slope, the rock material will likely stay.

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