Scientists have discovered a mash-up of two feared disasters – hurricanes and earthquakes – and they’re calling them “stormquakes”.The shaking of the sea floor during hurricanes and nor’easters can rumble like a magnitude-3.5 earthquake and can last for days, according to a study in this week’s journal Geophysical Research Letters. The quakes are fairly common, but they weren’t noticed before because they were considered seismic background noise.A stormquake is more an oddity than something…

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