Earthquakes

1 April, 2025

Do Santa Ana Mountains Mark Deadly Earthquake Fault?

By |2025-04-22T19:49:47+00:00April 1st, 2025|AAOC, Earthquake Resilience, Earthquake Risk, Earthquake Threats, Earthquakes|

The Santa Ana Mountain range in Orange County is a beautiful regional treasure, providing a spectacular backdrop to life in our area.

Beginning at the Whittier Fault and stretching south to the Santa Margarita River, major summits reach skyward, the mightiest being Modjeska (5,496 feet) and Santiago (5,689 feet) – which […]

4 October, 2024

Could The Big One Lead to a Surge in Homelessness?

By |2024-10-09T20:20:41+00:00October 4th, 2024|earthquake preparedness, Earthquake Risk, Earthquake Threats, Earthquakes|

In 2019, California saw a dramatic rise in homelessness, with over 21,300 additional people living without shelter—a 16.4% increase, surpassing the combined total of all other states, according to the U.S. Department of Housing and Urban Development. By January 2020, this number had climbed another 7%, bringing the total homeless […]

4 September, 2024

Myths About Earthquakes And Retrofits Dispelled

By |2024-09-25T23:57:53+00:00September 4th, 2024|Earthquake Retrofits, Earthquakes, SDCAA|

Earthquakes have confused and terrified people throughout human history.

In ancient times, many people believed earthquakes were the result of angry gods, giants and huge animals.

The Japanese believed a giant catfish living at the bottom of the ocean would shake the Earth when he moved. The Greeks blamed Poseidon, the god […]

1 September, 2024

Understanding Building Failures During Earthquakes

By |2024-09-25T23:32:58+00:00September 1st, 2024|AAGLA, earthquake damage, Earthquakes|

In our industry, there’s a saying: earthquakes don’t kill people, buildings do. While this is an oversimplification, it highlights the critical fact that the threat to public safety during earthquakes is primarily due to structural instability. Injuries occur because building facades, walls, parapets, ceilings, or other structural components collapse under […]

3 August, 2024

Earthquakes And Tsunamis: A Double Threat For Coastal Communities

By |2024-09-25T23:20:48+00:00August 3rd, 2024|AACSC, Earthquakes, Tsunamis|

Communities in the Apartment Association of California Southern Cities area face two significant earthquake threats. One is the well-known risk of buildings being damaged by strong seismic shaking, and the second is the localized danger of a tsunami triggered by a distant earthquake.

More than 150 of these powerful water forces […]

3 April, 2024

Dispelling Myths Surrounding Earthquakes and Retrofitting

By |2024-04-22T19:15:50+00:00April 3rd, 2024|AACSC, Earthquake Retrofit, Earthquakes|

Earthquakes have confused and terrified people throughout human history.

In ancient times, many people believed earthquakes were the result of angry gods, giants and huge animals.

The Japanese believed a giant catfish living at the bottom of the ocean would shake the Earth when he moved. The Greeks blamed Poseidon, the god […]

2 July, 2023

Myths About Earthquakes And Retrofits Dispelled

By |2023-07-11T16:10:04+00:00July 2nd, 2023|AACSC, Earthquake Retrofit, Earthquakes|

Earthquakes have confused and terrified people throughout human history.

In ancient times, many people believed earthquakes were the result of angry gods, giants and huge animals.

The Japanese believed a giant catfish living at the bottom of the ocean would shake the Earth when he moved. The Greeks blamed Poseidon, the god […]

1 July, 2023

Quake Safety: Retrofit, Insurance, Or Both?

By |2023-07-11T16:10:58+00:00July 1st, 2023|AAOC, Earthquake Safety, Earthquakes, Soft Story Seismic Retrofit|

Insurance carriers track the pulse of California’s earthquake liabilities, just as they monitor trends in fire, flood, hurricanes, and other hazards that cause claims to be filed for property damage, injury or death.

Warnings from seismologists that California is long overdue for a major earthquake has property owners and insurance actuaries […]

2 January, 2023

Potential at-risk Buildings Identified in San Diego

By |2023-01-04T00:06:06+00:00January 2nd, 2023|Earthquake Risk, Earthquake Safety, Earthquake Threats, Earthquakes, SDCAA|

Where can potentially unsafe, soft-story apartment building be found in San Diego?  And how many such buildings are there?

Those questions and similar ones about other counties in California led Optimum Seismic, Inc. and the U.S. Resiliency Council to team up with Esri, a leading mapping company, to combine resources to […]

1 January, 2023

The ABCs of Earthquakes and Seismic Engineering

By |2023-01-03T23:54:16+00:00January 1st, 2023|AAGLA, Earthquakes, Seismic Engineering, Seismic Resilience|

Most Californians have experienced earthquakes.  There are the large ones – sudden, jarring jolts followed by more strong shaking that can last from a few seconds to a couple of minutes. Farther away, these feel like a gentle “bump,” often followed by more rolling shaking.[i]

When a small quake […]

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