the earth is ringing like a bell ..article from CNN

[Guest guest]

MELBOURNE, Australia (Reuters) -- Two weeks on, the Earth is still vibrating

from the massive undersea earthquake off Indonesia that triggered the tsunami,

Australian researchers said on Sunday.

 

The Australian National University (ANU) said the reverberations were similar in

form to the ringing of a bell, though without the sound, and were picked up by

gravity monitoring instruments.

 

" These are not things that are going to throw you off your chair, but they are

things that the kinds of instruments that are in place around the world can now

routinely measure, " said ANU Earth Sciences researcher Herb McQueen.

 

" It is certainly above the background level of vibrations that the earth is

normally accustomed to experiencing. "

 

The magnitude 9.0 earthquake, the strongest for 40 years, struck off the coast

of Indonesia's Sumatra island on December 26. The tsunami it generated claimed

more than 156,000 lives.

 

McQueen said the oscillation was fading and at current levels equated to about a

millimeter of vertical motion of the earth.

 

Immediately after the quake the oscillation was probably in the 20 to 30 cm

motion range that is typically generated in the earth by the movements of the

sun and moon.

 

" This particular earthquake because it was 10 times larger than most of the

recent large earthquakes is continuing to reverberate, " McQueen said.

 

" We can still see a steady signal of the earth vibrating as a result of that

earthquake two weeks later. From what it looks like, it appears it will probably

continue to oscillate for several more weeks. "

 

The ANU's gravity meter is housed in a fireproof basement at the Mount Stromlo

Observatory near the capital Canberra and is part of a global geodynamics

project established after major earthquakes in the 1960s.

 

U.S. scientists said just after the quake that it may have permanently

accelerated the Earth's rotation shortening days by a fraction of a second and

caused the planet to wobble on its axis.

 

Richard Gross, a geophysicist with NASA's Jet Propulsion Laboratory in

California, theorized that a shift of mass towards the Earth's center during the

quake caused the planet to spin three millionths of a second faster and tilt

about 2.5 cm on its axis.

[Guest guest]

Very interesting Craig!

 

Jo

>

> MELBOURNE, Australia (Reuters) -- Two weeks on, the Earth is still

vibrating from the massive undersea earthquake off Indonesia that triggered

the tsunami, Australian researchers said on Sunday.

[Guest guest]

, " Jo Cwazy " <heartwork@c...> wrote:

> Very interesting Craig!

>

> Jo

> >

 

Interesting yes. But nothing to be alarmed about. Other forces still keep the

Earth in great position. Otherwise, we may no longer revolve the sun, go off

orbit, loose and drifting in space. However, there is not even a slim possiblity

of this from a related article I read.

 

Vijay

[Guest guest]

Hi Craig

 

> MELBOURNE, Australia (Reuters) -- Two weeks on, the Earth is still

vibrating from the massive undersea earthquake off

> Indonesia that triggered the tsunami, Australian researchers said on

Sunday.

 

I gather that some organisation has calculated that the earthquake sped up

the earth's rotation.... apparently each day is now 2.68 milliseconds

shorter than it was beforehand!

 

BB

Peter