[ntp:questions] Result of Earth Quake speeds up earth?

unruh unruh at wormhole.physics.ubc.ca
Tue Mar 15 17:45:47 UTC 2011

On 2011-03-15, Uwe Klein <uwe_klein_habertwedt at t-online.de> wrote:
> Chris H wrote:
>> Hello, 
>> Firstly may I just say, my thoughts are with members of this list who
>> are in Japan.
>> Just a bit of an odd question...
>> I hear in the Media that the earth quake sped the rotation of the earth
>> up..
>> Can anyone confirm this?
>> Does this mean that we will not need to 'insert leap seconds' for a
>> while, or does it mean that we will need to retract leap seconds that
>> have been added?
> Values published were in the +1.5us / day range.
> Wonder how they compute that value?
> Adjust earth rotational energy by the amount of energy released from the earthquake?

No. The earthquake energy does not come out of the rotational energy of
the earth. It is due to a slight displacement of the mass on the earth
Apparently the mass distribution has concentrated a tiny tiny bit toward
the center of the earth. 

> Earth gains daylength by tidal palpations anyway.
> (~1.7ms/century ~= 46ns/day?)
> uwe

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