Researchers have found a better way to detect earthquakes with submarine cables.


Researchers in the UK have detailed another use for submarine cables to make the internet work. It is to detect earthquakes and collect data about ocean currents.

The research team said, “The optical fiber-based sensing technology can dramatically improve Earth observation by using an existing submarine communication cable as a submarine sensor.” speak(Opens in a new window) in their abstract Science An article detailing experiments on this system.

The researchers found that using subsea cables to collect this data is not new, but the problem was that previous methods could only measure activity that affected the entire length of the cable. Their approach uses a range of cables between repeaters to collect more data.

The researchers demonstrated the feasibility of the system using a submarine cable linking the UK and Canada. The cable itself is approximately 3,641 miles (5,860 km) long, but there are individual spans that are approximately 28-56 miles (45-90 km) between repeaters.

BBC report(Opens in a new window) More than 430 fiber optic submarine cables have been deployed worldwide. Their combined length is over 800,000 miles. This means there are many opportunities to apply this study to monitoring seismic activity and ocean currents.

“By applying this technology to existing subsea communications cables,” the researchers say, “thousands of permanent, real-time environmental sensors can be instrumented on the subsea, rarely monitored, without changes to the underwater infrastructure.”

Get the best stories ever!

join what’s new We deliver top news to your inbox every morning.

This newsletter may contain advertisements, deals, or affiliate links. Subscribe to our newsletter Terms of service And Privacy Policy. You may unsubscribe from the newsletter at any time.

var facebookPixelLoaded = false;
window.addEventListener(‘load’, function(){
document.addEventListener(‘scroll’, facebookPixelScript);
document.addEventListener(‘mousemove’, facebookPixelScript);
})

function facebookPixelScript() {
if (!facebookPixelLoaded) {
facebookPixelLoaded = true;
document.removeEventListener(‘scroll’, facebookPixelScript);
document.removeEventListener(‘mousemove’, facebookPixelScript);

!function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?
n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
n.push=n;n.loaded=!0;n.version=’2.0′;n.queue=[];t=b.createElement(e);t.async=!0;
t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
document,’script’,’//connect.facebook.net/en_US/fbevents.js’);

fbq(‘init’, ‘454758778052139’);
fbq(‘track’, “PageView”);
}
}

Leave a Comment