Thursday, July 20, 2017

New Maps Show Major Fault Lines Run Under L.A.’s Most Expensive Real Estate

beverly hills
New fault boundaries have raised concerns for some of the priciest parts of Los Angeles.

According to new fault maps – which were released on Thursday – Beverly Hills, Santa Monica, Brentwood, Pacific Palisades, Westwood and Century City have been included in the Newport-Inglewood fault zone.

While this isn’t news for certain areas of the Westside, the remapped fault boundaries affect some of the highest-priced real estate in L.A. and, as a result, could thwart future development of those areas because building on a fault line is restricted.

“It is important to not build on faults,” Tim Dawson, senior engineering geologist for the California Geological Survey, told the L.A. Times.

“Building foundations will tend to break when the earth moves beneath them, damaging the building in the process.”

This is the first time the California Geological Survey has released official maps of these earthquake fault lines, connecting the Hollywood fault (which runs under Hollywood and Beverly Hills) to the Newport-Inglewood fault (which runs through Culver City, Pico-Robertson and Mid City).

While the new fault boundaries could halt future development of these areas, it will not affect the current structures that already sit on or along these fault lines.

Buildings that are constructed on fault lines have a much higher risk of damage or collapse in the event of an earthquake.

The remapping of these fault lines is part of Los Angeles’ earthquake safety initiative, aiming to create more seismically safe structures and earthquake awareness throughout the city.

Once these fault maps have been finalized, developers will need to hire a geologist to determine the viability of certain parts of Los Angeles before starting construction on land near or directly on these faults.

“Extra precautions should be taken to ensure new buildings are not located on the trace of an active fault,” Dawson stressed. “The purpose of the investigation is to identify if there are active faults present, and if there are, then they must be avoided.”

If your home was built prior to 1950, there’s a good chance your foundation is not seismically sound. Therefore, it’s important to contact a foundation specialist to inspect the area.

Julian De La Torre is an expert in Los Angeles foundation inspection, foundation contractors and foundation repair. Julian’s company, Julian Construction, has inspected over 15,000 structures, working with engineering firms and local departments of building & safety. The company has done more foundation repair in Los Angeles than any other company in the area over the last five years.

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