TechZ
December 30th, 2004, 03:29 AM
Quake may have altered Earth's rotation
The deadly Asian earthquake may have permanently accelerated the Earth's rotation (http://news.com.com/Quake+may+have+altered+Earths+rotation/2100-1028_3-5505951.html?tag=nefd.top)--shortening days by a fraction of a second--and caused the planet to wobble on its axis, U.S. scientists said Tuesday. Richard Gross, a geophysicist with NASA's Jet Propulsion Laboratory in California, theorized that a shift of mass toward the Earth's center during the quake on Sunday caused the planet to spin 3 microseconds, or 3 millionths of a second, faster and to tilt about an inch on its axis. A second article says the quake moved undersea tectonic plates by up to 98 feet (http://www.reuters.com/newsArticle.jhtml;jsessionid=IESG1YFI1NHI2CRBAELCF FA?type=scienceNews&storyID=7194479), shifting islands near Sumatra out to sea an unknown distance.
The Coming Atlantic Mega-Tsunami
It's not news at all that scientists predict an eventual "mega-tsunami" that will sweep across the Atlantic that will still be anything from 60 to 150 ft high when it hits the U.S. Eastern seaboard. This Old News, however, suddenly seems fresh (http://www.bbc.co.uk/science/horizon/2000/mega_tsunami.shtml).
Quake's power = million atomic bombs?
Scientists describe Sunday's devastating earthquake off the island of Sumatra as a "megathrust" -- a grade (http://www.cnn.com/2004/TECH/science/12/27/quake.seismic.ap/index.html) reserved for the most powerful shifts in the Earth's crust.
The deadly Asian earthquake may have permanently accelerated the Earth's rotation (http://news.com.com/Quake+may+have+altered+Earths+rotation/2100-1028_3-5505951.html?tag=nefd.top)--shortening days by a fraction of a second--and caused the planet to wobble on its axis, U.S. scientists said Tuesday. Richard Gross, a geophysicist with NASA's Jet Propulsion Laboratory in California, theorized that a shift of mass toward the Earth's center during the quake on Sunday caused the planet to spin 3 microseconds, or 3 millionths of a second, faster and to tilt about an inch on its axis. A second article says the quake moved undersea tectonic plates by up to 98 feet (http://www.reuters.com/newsArticle.jhtml;jsessionid=IESG1YFI1NHI2CRBAELCF FA?type=scienceNews&storyID=7194479), shifting islands near Sumatra out to sea an unknown distance.
The Coming Atlantic Mega-Tsunami
It's not news at all that scientists predict an eventual "mega-tsunami" that will sweep across the Atlantic that will still be anything from 60 to 150 ft high when it hits the U.S. Eastern seaboard. This Old News, however, suddenly seems fresh (http://www.bbc.co.uk/science/horizon/2000/mega_tsunami.shtml).
Quake's power = million atomic bombs?
Scientists describe Sunday's devastating earthquake off the island of Sumatra as a "megathrust" -- a grade (http://www.cnn.com/2004/TECH/science/12/27/quake.seismic.ap/index.html) reserved for the most powerful shifts in the Earth's crust.