Connect with us

Uncategorized

How a ‘massive and silent’ earthquake caused a mysterious global tsunami

 


Researchers have published an investigation into the mysteries behind the massive “hidden” earthquake that triggered a global tsunami last year.

In a study published in Geophysical Research Letters on February 8, scientists said a total of five earthquakes, including one massive “hidden” earthquake, triggered the tsunami after it struck near the South Sandwich Islands on August 12, 2021, in a remote area. Southern Ocean off the coast of South America.

The study showed that tsunami-causing earthquakes such as the August 12 incident have complex patterns that can confuse how scientists measure key tectonic activity.

The authors suggested that current approaches to mitigating potential damage from earthquakes and tsunamis may need to be rethought to ensure that tsunami warnings are reliable.

The researchers described an initial rupture that occurred deep in the oceanic crust between the South American and South American Sandwich tectonic plates at a depth of about 29 miles. This earthquake, which measured 7.5 on the Richter scale, then triggered other earthquakes, including a third, less shallow – and much more violent.

This 8.2-magnitude earthquake later generated most of the energy in the rupture chain, the researchers said, and had far-reaching effects, with waves recording thousands of miles from their source.

The tsunami from the earthquake spread far across the ocean, reaching into the North Atlantic, Indian and Pacific Oceans, with tide gauges measuring several inches as far as 6,200 miles in some cases, the newspaper said.

However, for such a massive event that spans the globe, the earthquake left no trace in the model data that scientists use to study such phenomena, baffling researchers as to what actually happened.

“The third event is special because it was huge and it was silent,” Zhi Jia, a seismologist at Caltech, told news site Phys.org. “In the data we usually look at, it was almost invisible.

“We need to rethink our way of mitigating earthquake and tsunami risks. To do this, we need to accurately and accurately describe the true size of large earthquakes, as well as their physical processes.”

The study showed that the larger shallow earthquake signature was initially lost in the complex data caused by the series of multiple earthquakes that occurred on August 12.

“It is difficult to find the second earthquake because it is buried in the first,” Jia said. “Complex earthquakes like this are rarely observed…and if we didn’t use the right dataset, we couldn’t really see what was hidden inside.”

Stock Photo – Tsunami warning sign. Research has shown that complex, multiple-rupture earthquakes can confound current tsunami warning methods. Lawrence Souls / Getty Images

Sources

1/ https://Google.com/

2/ https://www.newsweek.com/how-huge-silent-earthquake-caused-mysterious-global-tsunami-1678486

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

ExBUlletin

to request, modification Contact us at Here or [email protected]