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Scientists discover that large storms can trigger "stormquakes."



WASHINGTON (AP) – Scientists have discovered a mash-up of two feared disasters – hurricanes and earthquakes – and they call them "stormquakes."

Seafloor Shaking Can Be Hurricane and Norse According to a study in this week's Geophysical Research Letters, it rumbles like a 3.5 magnitude earthquake and can last for days. The quakes are quite common, but were not noticed before because they were considered seismic background noise.

A stormquake is more of a curiosity than something that can hurt you, because nobody stands on the seabed during a hurricane. said Wenyuan Fan, a Florida State University seismologist who was the lead author of the study.

The combination of two frightening natural phenomena might be reminiscent of "Sharknado," but stormquakes are real and not dangerous.

"This is the last thing you need to worry about," Fan told The Associated Press.

Storms trigger huge waves in the sea, causing a different type of wave. These secondary waves then interact with the seabed ̵

1; but only in certain places – and that causes the tremor, said Fan. It only occurs in places where a large continental shelf and flat land are present.

Between September 2006 and February 2015, the Fan Team detected 14,077 stormquakes in the Gulf of Mexico and Florida, New England, Nova Scotia, Newfoundland, Labrador, and the United Kingdom. According to Fan, a special military sensor is needed to detect them.

Hurricane Ike in 2008 and Hurricane Irene in 2011 triggered many stormquakes, according to the study.

Shaking is a wave-inducing type Seismologists are not usually looking for earthquakes, so they have gone unnoticed so far, Fan said.

Oceans-generated seismic waves appear on US Geological Survey instruments, "but in Our mission to look for earthquakes waves are considered as background noise, "said USGS seismologist Paul Earle.


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