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On Thursday, the California Governor’s Office of Emergency Services will unveil an app created by UC Berkeley that will give all Californians who download it on iOS and Android phones the chance to get earthquake early warnings from any corner of the state.
Authorities will also begin issuing quake early warnings through the Wireless Emergency Alerts system, offering text message alerts even for people who have not downloaded the app.
— The Los Angeles Times
The new warning system will alert Californians who have the app when an earthquake registering at level 3 on the Modified Mercalli Intensity Scale strikes nearby. The state will send out text message alerts over its Wireless Emergency Alerts system to anyone within range of a level... View full entry
Japan, through both government mandates and its engineering culture, builds stronger structures capable of withstanding earthquakes and being used immediately afterward. The United States sets a minimum and less protective standard with the understanding that many buildings will be badly damaged.
The two approaches reflect different attitudes toward risk, the role of government and collective social responsibility.
— The New York Times
The NYT takes a look at the drastically differing approaches (and ideologies behind them) towards earthquake safety in Japan compared with the United States and asks experts what would be at stake in the greater, urban picture in the anticipated event of a very big earthquake. "The debate over... View full entry
With earthquakes in the news following a pair of recent tremors in California, it’s important to remember that seismic design is an integral and increasingly complex aspect of building design architects work hard to address. An ever-improving standard, seismic codes not only save lives, but also... View full entry
Researchers found the sedimentary basin under [Seattle] can amplify the type of ground motion that’s hardest on high-rises by a factor of two to five — much more than previous estimates.
In response, Seattle and Bellevue are boosting seismic standards for new buildings 240 feet or taller [...] But the prospect of stronger shaking also raises concerns about older high-rises
— Seattle Times
San Francisco lives with the certainty that the Big One will come. But the city is also putting up taller and taller buildings clustered closer and closer together because of the state’s severe housing shortage. Now those competing pressures have prompted an anxious rethinking of building regulations. Experts are sending this message: The building code does not protect cities from earthquakes nearly as much as you might think. — New York Times
Taking a hard look at San Francisco's building codes, this NY Times piece goes in depth on what it means for city high rises if the next big earthquake hit. From the 1906 earthquake and fire to current seismic safety, concerns revolve around the number of skyscrapers built on liquefaction zones... View full entry
Taiwan's Government has ordered an investigation into the collapse of a high-rise building in an earthquake after it emerged tin cans had been used in its construction.
Rescue workers found the cans as they searched for survivors two days after the 6.4-magnitude earthquake that has killed at least 37 people.
— independent.co.uk
However, an engineer speaking to Taiwanese TV news channel CNA explained how using cans in construction was not necessarily illegal: “For such purposes in construction, it was not illegal prior to September 1999, but since then styrofoam and formwork boards have been used instead.”Related... View full entry
Renters and apartment owners must equally share the financial burden of earthquake retrofitting, the Los Angeles City Council agreed Wednesday, capping a more than year-long debate that allows the city to begin implementing the most sweeping mandatory seismic laws in the nation. [...]
Owners can pass half the retrofit costs to tenants through rent increases over a 10-year period, with a maximum increase of $38 per month.
— latimes.com
Related stories in the Archinect news:Should tenants pay for earthquake retrofitting costs?Deep Retrofits Next Market for Struggling ArchitectsNapa Quake a 'Reality Check' View full entry
After twin earthquakes in April and May claimed 9,000 lives and left vast swathes of Nepal in ruins, survivors worried if they reused the brick rubble, they would end up with the same vulnerable, seismically unsound structures.
[...] Shigeru Ban - who helped bring global attention to humanitarian architecture and continues to influence fellow architects and disaster-relief workers - devised a solution. [...]
"I'm encouraging people to copy my ideas. No copyrights," Ban said.
— reuters.com
"While Ban said he enjoys working on grand projects commissioned by privileged people, he also wants to help people who have lost their homes, and is encouraged that many architects have followed in his footsteps."Previously in the Archinect news:Shigeru Ban: Beauty as a basic human needShigeru... View full entry
Wednesday night’s 8.3-magnitude earthquake had left 11 dead and a 175 houses damaged. While the toll wasn’t negligible, the quake — the world’s strongest this year — might have leveled less-prepared countries.
“Our structural engineering is world class,” Santos, a 62-year-old engineer at the firm Ingenería Estructuras Consultoría, said by phone. “And it’s made in Chile.”
— miamiherald.com
Related on Archinect:Deadly 7.9-magnitude earthquake in Nepal destroys architectural landmarksAre India's cities prepared to withstand an earthquake like in Nepal?First Japanese skyscraper gets retrofitted with rooftop vibration control system View full entry
“Our operating assumption is that everything west of Interstate 5 will be toast.”
In the Pacific Northwest, everything west of Interstate 5 covers some hundred and forty thousand square miles, including Seattle, Tacoma, Portland, Eugene, Salem (the capital city of Oregon), Olympia (the capital of Washington), and some seven million people. When the next full-margin rupture happens, that region will suffer the worst natural disaster in the history of North America.
— newyorker.com
This relatively low-tech method is among a battery of tests that materials scientists are using to determine why several anchor rods securing the newest portion of the San Francisco Bay Bridge, the region’s busiest, failed their earthquake inspections. The first alarms sounded in 2013, when seismic tests found 32 faulty rods. They’d been sitting in a large pool of water, corroding. — wired.com
Previously:Bolts along Bay Bridge bike path failAfter $6.4 Billion, San Francisco Bridge Remains a MessTime-Lapse of San Francisco-Oakland Bay Bridge Construction View full entry
A vibration control device to dramatically reduce shaking caused by long-period earthquake ground motion — a phenomenon in which major earthquakes shake skyscrapers slowly but severely — was shown to the media on Monday after being installed in a 55-story building in central Tokyo. [...]
The companies said it is the nation’s first rooftop vibration control device against earthquakes.
— the-japan-news.com
California’s state geologist has concluded that an active earthquake fault is underneath a massive proposed skyscraper project in Hollywood, setting the stage for a huge battle at City Hall over growth and seismic safety. — latimes.com
Stand your ground, the U.S. debut of the "Considering the Quake: Seismic Design on the Edge" exhibition will be on Feb. 13, 2014 at the AIA's Center for Architecture in New York.
Based on resilient-design research gathered by the exhibition's curators Professor Ghyslaine McClure and Dr. Effie Bouras, it highlights not only the artistic aspect of seismic design, but also its more hidden — and crucial — scientific side.
— bustler.net
Here are some notable works that will be included in the upcoming exhibition: Find out more on Bustler. View full entry
