North Atlantic ‘Weather Bomb’ Tremor Measured In Japan
(Click to enlarge) North Atlantic weather has been felt through seismic waves in Japan (Credit: NOAA)
Seismologists in Japan have tracked, for the first time, a particular type of tiny vibration that wobbled through the Earth from the Atlantic seafloor. It was started by a “weather bomb”: the same low-pressure storm, off Greenland, which made UK headlines in late 2014.
(From BBC / by Jonathan Webb)– Tiny tremors, of two types, constantly criss-cross the deep Earth from storms. The slowest of these, the “S” wave, has never been traced to its source before and researchers say it opens up a new way to study the Earth’s hidden depths. The findings appear in the journal Science. Weather-triggered waves in the fabric of our planet, known as “microseisms”, happen whenever a storm at sea crashes waves together and those collisions send energy booming into the ocean floor. Read the full story »