Tuesday , August 9 2022

14 percent shadow of confusing hit Seattle, experts say



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by Karina Mazhukhina / KOMO News

SEATTLE – The chance of 14 percent of the size of the Cascadia earthquake hit Seattle in the next 50 years, estimates of the United States Geological Survey.

"Unfortunately, we can not" predict "exactly when earthquakes occur," said Alison Duvall, chief researcher with the M9 project and assistant professor of the University of Washington.

As part of the M9 project, which study how shaking would affect the Puget Sound region in future earthquakes and tsunamis, seismologists were running 50 computer simulations of different earthquake earthquake situations .

"In general, we expect the Seattle region to experience a strong land stimulus … it will last around 100 seconds," said Duvall.

The results confirmed that coastal areas would be hit and the most difficult and places like Downtown Seattle would shake more than rocky mountains.

In order to increase security, Seattle is upgrading seismic standards for new build 240 feet or higher.

At present, 18 new buildings are 240ft or higher built and 24 are offered with one height, according to Emporis.

But the City has 1,100 brick or stone buildings with no steel support, making them vulnerable in a earthquake. Property owners are being pushed to make upgrades, but the high cost is the biggest obstacle

Seattle Public Schools also makes it a priority to make seismic improvements in 37 schools. During the fall of 2018, 14 projects were completed and 17 additional projects will be completed by 2021. << Here is the full list

In preparation for the "Really Big One," a earthquake warning system is being developed from the name ShakeAlert which uses real-time information to find earthquakes as soon as they occur and give notice through cell phone for people a little far away where the shadow has not yet spread.

"You can think of earthquakes and seismic waves a bit like pool holes – it takes them time to reach points away from the original source," said Harold Tobin, Director of the Pacific Ocean Seismic Network of North- west Wales (PNSN) and PC teacher.

Although PNSN has joined the US Geological Survey to create the system, they have relied on the M9 project to show how much time it could take to the destructive drivers to reach – which is about 20 seconds over a minute of time, depending on where the earthquake starts.

"It does not sound a lot, but it's enough for people to move to safe places and many essential systems to ensure – (that's all) hospitals, trains, bridges , electricity and water systems, etc. "said Tobin.

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