November 26, 2022 The Best Source of News, Culture, Lifestyle for Culver City, Mar Vista, Del Rey, Palms and West Los Angeles

Study Finds Local Fault Zone Capable of 7.8 Earthquake

Study looks at potential of Palos Verdes fault zone 

By Dolores Quintana

Three scientists, Franklin Wolfe, Structural Geologist at Chevron CTC, John H. Shaw, Harry C. Dudley Professor of Structural and Economic Geology at Harvard, and Andreas Plesch Senior Research Scientist at Harvard University’s Department of Earth and Planetary Sciences conducted a study that was published in the Bulletin of the Seismological Society of America. The study was entitled Origin of the Palos Verdes Restraining Bend and Its Implications for the 3D Geometry of the Fault and Earthquake Hazards in Los Angeles, California.

The study stated that “The Palos Verdes fault zone (PVFZ) extends across the southwestern Los Angeles basin and Inner Continental Borderland, California, and is considered capable of generating large damaging earthquakes with short recurrence intervals” over a magnitude of 7.8 rather than the 7.4 magnitude that was previously reported after new 3-D modeling. 

In the study, the PVFZ, which is a 110 km long fault zone, was found to be a “complex fault geometry and slip patterns suggest that the PVF is a highly segmented fault, which may rupture in moderate-size earthquakes that involve individual segments or large events.”  The study concluded that the PVFZ fault zone had the potential for a magnitude of 7.1 to 7.4 for single‐segment ruptures and 7.4 to 7.8 for multi segment ruptures over time. 

“The Santa Monica Bay segment and RCFZ (Redondo Canyon Fault Zone) should be considered as active seismic sources capable of moderate‐to‐large magnitude earthquake events that would directly impact the metropolitan Los Angeles area,” reads the study. “Given the offshore extent of the fault, it might be capable of generating local tsunamis in the San Pedro and Santa Monica Bay, as well as in the Los Angeles and Long Beach Harbors.”

The good news is that due to the reported slip rate of 1.1 to 5.9 minimum years average recurrence intervals for these single and multi segment rupture scenarios are between 580 to 610 years and 760 years to 1170 years respectively. This does point out, however, that because Los Angeles is located in a seismically active area, we must strive to be ready for seismological events even though the possibility of them happening is low. 

The fault has been active since the Miocene epoch in history and is a major regional seismic source. The Miocene epoch was the first epoch of the Neogene period about 23.03 to 5.333 million years ago. It was about the time that the Apes first rose and diversified as a species and the collisions of the continents were causing mountain ranges to be formed, particularly in the collisions between Asia and the Indian subcontinent and in western North America, Europe, and East Asia. Even though this time period happened long ago, most of the plants and animals were the same as those in modern times.

in News
Related Posts

Thief Steals Family Diary Culver City’s Pasta Sisters Restaurant

November 23, 2022

November 23, 2022

$5,000 reward offered for diary’s return By Dolores Quintana In an Instagram post on November 20, Pasta Sisters restaurant revealed...

Excess Food Turned Into Groceries at Local Food Drive

November 23, 2022

November 23, 2022

Local organization Nourish L.A turns excess food into groceries for those who are food insecure in our neighborhoods and the...

Culver City Holiday Tree Lighting Sled-tacular Returns Next Week With 25 Tons of Fresh Snow

November 23, 2022

November 23, 2022

Event set for December 1 with Sled-tacular beginning at  5 p.m., Tree Lighting Ceremony at 6 p.m. The holiday season...

Column: What We Learned From Campaign 2022

November 23, 2022

November 23, 2022

By Nick Antonicello The road to democracy was long and winding in 2022, with much shock and surprise as LA...

ICE Returns to Santa Monica After Two Year Hiatus

November 22, 2022

November 22, 2022

ICE Santa Monica has returned for all day skating and fun for the whole family learn about what’s changed after...

Local Lions Club Donation Event Helps Homeless Veterans at West L.A VA Campus

November 22, 2022

November 22, 2022

Venice Marina Lions Club donated clothing and toiletries to homeless veterans during a veterans day event at the West L.A...

State to Release $1 Billion in Homelessness Funds

November 21, 2022

November 21, 2022

Move comes weeks after Governor holds funds citing lackluster plans to tackle homelessness  California Governor Gavin Newsom Friday convened local...

Anti-Semitic Hate Flyers Distributed in Culver City

November 21, 2022

November 21, 2022

Sunday incident remains under investigation  Anti-Semitic flyers were distributed in Culver City over the weekend.  According to the Culver City...

Thatcher Yard Affordable Housing Project Breaks Ground

November 21, 2022

November 21, 2022

Thatcher Yard Affordable Housing Project Breaks Ground on 2 acre 98 unit affordable housing community..Video sponsored by Bella Petite.

Torrance Man Sentenced to 9 Years in Federal Prison for Role in Scam Involving Fake Open Houses at Not-for-Sale Homes

November 20, 2022

November 20, 2022

Adolfo Schoneke sentenced to 54 years in federal prison in connection to $6 million real estate scam A South Bay...

Developer Looks to Build Five-Story Palms Apartment

November 20, 2022

November 20, 2022

Kelton Avenue project would include 43 units By Dolores Quintana Palms has a new proposed five-story multifamily complex in the...

Local Veterans Sue VA for Failing to Build Housing on West Los Angeles VA Campus

November 18, 2022

November 18, 2022

Lawsuit contends the agency not meeting legal obligation to house veterans at West Los Angeles VA campus By Sam Catanzaro...

Homeless Man Arrested for Stealing $22,000 Worth of Laptops From Culver City Business

November 17, 2022

November 17, 2022

11 laptops recovered following Sunday robbery A man was arrested recently for stealing $22,000 worth of laptops from a Culver...

Traci Park Declares Victory in LA City Council Race Over Erin Darling

November 17, 2022

November 17, 2022

“We intend to bring about desperately needed change to make our schools, parks, and neighborhoods safer,” park says in statement...

New Restaurant Opens in Longtime Westside Wine Shop

November 16, 2022

November 16, 2022

Wine House Kitchen now open in Wine House on Santa Monica Boulevard By Dolores Quintana West LA has a new...