Uncategorized
Caltech researchers say earthquakes detected – Pasadena Star News
Imagine reusing underground fiber optic cables, typically used to deliver high-speed internet to Californians, to detect and measure earthquakes.
That's the focus of recent research by scientists at Caltech led by Chongwen Zhan, who presented his findings to students and community members during a lecture on Wednesday evening, April 24.
“California is earthquake country, and we have had a very good seismic network for more than 100 years now,” said Zahn, a professor of geophysics at Caltech. “We really want to have denser instruments so we can pick up all the small earthquakes from one neighborhood to the next.”
Zahn's team used distributed acoustic sensing to study a section of fiber optic cable. By using laser emitters to shine beams of light through cables, which contain small defects every few meters that reflect part of the light back to the source, scientists gathered insights into the movement of seismic waves.
Using fiber-optic cables to monitor earthquakes may be a faster and less expensive approach than using traditional seismic sensors, Zhan said. He added that his team was able to convert two fiber-optic cables into more than 5,000 sensors.
The success of this experiment, which focused on the 6.0-magnitude Antelope Valley earthquake in 2021, prompted Zahn's team to expand its research from California to other regions, including Antarctica.
“The ground is constantly making noise,” Zahn said. “By listening to the Earth carefully, you can learn a lot about the Earth and all the different processes, and I think there is a lot more we need to do.”
In addition to Zahn's lecture, Wednesday's event also gave attendees the opportunity to get hands-on experience using new seismology tools and chat with members of Caltech's Seismic Laboratory, as well as high school interns from Pasadena and Alhambra about their seismic research.
|
Sources 2/ https://www.pasadenastarnews.com/2024/04/25/a-new-use-for-fiber-optic-lines-detecting-earthquakes/ The mention sources can contact us to remove/changing this article |
What Are The Main Benefits Of Comparing Car Insurance Quotes Online
LOS ANGELES, CA / ACCESSWIRE / June 24, 2020, / Compare-autoinsurance.Org has launched a new blog post that presents the main benefits of comparing multiple car insurance quotes. For more info and free online quotes, please visit https://compare-autoinsurance.Org/the-advantages-of-comparing-prices-with-car-insurance-quotes-online/ The modern society has numerous technological advantages. One important advantage is the speed at which information is sent and received. With the help of the internet, the shopping habits of many persons have drastically changed. The car insurance industry hasn't remained untouched by these changes. On the internet, drivers can compare insurance prices and find out which sellers have the best offers. View photos The advantages of comparing online car insurance quotes are the following: Online quotes can be obtained from anywhere and at any time. Unlike physical insurance agencies, websites don't have a specific schedule and they are available at any time. Drivers that have busy working schedules, can compare quotes from anywhere and at any time, even at midnight. Multiple choices. Almost all insurance providers, no matter if they are well-known brands or just local insurers, have an online presence. Online quotes will allow policyholders the chance to discover multiple insurance companies and check their prices. Drivers are no longer required to get quotes from just a few known insurance companies. Also, local and regional insurers can provide lower insurance rates for the same services. Accurate insurance estimates. Online quotes can only be accurate if the customers provide accurate and real info about their car models and driving history. Lying about past driving incidents can make the price estimates to be lower, but when dealing with an insurance company lying to them is useless. Usually, insurance companies will do research about a potential customer before granting him coverage. Online quotes can be sorted easily. Although drivers are recommended to not choose a policy just based on its price, drivers can easily sort quotes by insurance price. Using brokerage websites will allow drivers to get quotes from multiple insurers, thus making the comparison faster and easier. For additional info, money-saving tips, and free car insurance quotes, visit https://compare-autoinsurance.Org/ Compare-autoinsurance.Org is an online provider of life, home, health, and auto insurance quotes. This website is unique because it does not simply stick to one kind of insurance provider, but brings the clients the best deals from many different online insurance carriers. In this way, clients have access to offers from multiple carriers all in one place: this website. On this site, customers have access to quotes for insurance plans from various agencies, such as local or nationwide agencies, brand names insurance companies, etc. "Online quotes can easily help drivers obtain better car insurance deals. All they have to do is to complete an online form with accurate and real info, then compare prices", said Russell Rabichev, Marketing Director of Internet Marketing Company. CONTACT: Company Name: Internet Marketing CompanyPerson for contact Name: Gurgu CPhone Number: (818) 359-3898Email: [email protected]: https://compare-autoinsurance.Org/ SOURCE: Compare-autoinsurance.Org View source version on accesswire.Com:https://www.Accesswire.Com/595055/What-Are-The-Main-Benefits-Of-Comparing-Car-Insurance-Quotes-Online View photos
to request, modification Contact us at Here or [email protected]
 |
 |
 |
