Ali Sahabi, GEC

Ali Sahabi

About Ali Sahabi

Ali Sahabi has been a licensed General Engineering Contractor (GEC) since 1993, and is a principal at Optimum Seismic, Inc. He has completed hundreds of seismic retrofitting and adaptive reuse projects for multifamily residential, commercial, and industrial buildings throughout California.
17 July, 2018

The ‘death box’ where Seattle earthquake researchers work

By | 2018-07-17T18:11:12+00:00 July 17th, 2018|Related News|

The University of Washington’s civil engineers and seismic experts will not be safe if a major earthquake were to strike, that is due to the fact their building is vulnerable to earthquakes. The civil engineers and seismic experts live in More Hall, it was built in 1946 before modern building codes enacted. For more [...]

16 July, 2018

Magnitude 3.0 earthquake strikes near Castro Valley, CA

By | 2018-07-16T17:50:20+00:00 July 16th, 2018|Related News|

On Sunday Morning a 3.0 earthquake struck nearby Castro Valley. So far no reports or injury...For more info, please read the original article by SF Gate:

7 July, 2018

Why skirting hazardous substance tests could get you in trouble

By | 2018-08-10T17:52:16+00:00 July 7th, 2018|Seismic Waves|

July 2018 Newsletter. The emergency room at Long Beach Community Hospital was shut down last week over concerns that it would be unable to meet state seismic compliance regulations that take effect next year. The age of the 94-year-old structure and its location on top of a [...]

27 June, 2018

The Big One Could Leave 250,000-400,000 Quake Refugees in California. Where will they go?

By | 2018-06-27T21:33:37+00:00 June 27th, 2018|Related News|

When a catastrophic earthquake hits California, buildings will topple and potentially hundreds could be killed. But what gets less attention is the wrenching aftermath of such a huge temblor, which could leave hundreds of thousands of people without a home. Officials are grappling with where all these quake refugees would go. For more info, [...]

27 June, 2018

Stanford Study Casts Doubt on the Predictive Value of Earthquake Foreshocks

By | 2018-06-27T20:22:48+00:00 June 27th, 2018|Related News|

A new study published this month in Nature Geoscience has cast doubt on earlier theories that seismic activity before an earthquake can help to predict when that quake will come. For more info, please read the original article by Stanford University:

27 June, 2018

At Risk in a Big Quake: 39 of San Francisco’s Top High Rises

By | 2018-06-27T20:00:27+00:00 June 27th, 2018|Related News|

A report by the U.S. Geological Survey includes a list of buildings that are potentially vulnerable to a large quake. Some of San Francisco’s most prominent high rises are on the list. For more info, please read the original article by Thomas Fuller of the New York Times:

27 June, 2018

Japanese Authorities were Warned about Concrete Wall Before it Collapsed and Killed a Girl in Osaka Earthquake.

By | 2018-06-27T19:56:51+00:00 June 27th, 2018|Related News|

Following the fatal collapse of a concrete wall at a school in Osaka, Japan, officials have admitted that they were warned about the structure three years earlier, but determined it was not a threat after they inspected it for cracks and hit it with a stick. For more info, please read the original article [...]

16 June, 2018

Getting a Retrofit? Don’t Skirt Hazardous Substance Testing

By | 2018-06-16T21:39:49+00:00 June 16th, 2018|asbestos, hazardous material, Seismic Retrofit|

Asbestos and lead, once touted as miracle materials for construction, now stir feelings of dread among owners of older apartment structures. The discovery of these substances in the stucco, walls, paint, ceilings and other components of a building can substantially increase the cost of any demolition or reconstruction project. Once found, state, local and [...]

8 June, 2018

Retrofits Offer No Guarantees, But They Are Proven to Work

By | 2018-06-13T19:25:38+00:00 June 8th, 2018|Seismic Waves|

June 2018 Newsletter. California isn't the only state holding earthquake drills. Last week, Arizona held a practice run -- preparing for some 400,000 evacuees from California fleeing "The Big One." More than 1,000 agencies worked to set up emergency shelters on a softball field, medical facilities and [...]

6 June, 2018

More than 800 West Hollywood Buildings Could Collapse in a Big Quake

By | 2018-06-08T18:15:22+00:00 June 6th, 2018|Related News|

The city of West Hollywood has identified more than 800 buildings that are at risk of damage or collapse in a major earthquake, the Los Angeles Times has reported. About 90 percent of those structures are wood-framed, soft-story buildings such as apartments with carports on the ground floor. The rest are concrete or steel. [...]