Chilean Earthquake/Tsunami

[Rook]

Its time to airlift Paul Shirely and a planeful of condoms to Santaigo.

 

[EFC Si]

I know, if it was in the water there would be a huge tsunami probably headed our way.

Thats what you get when you live on a coast-line facing the two most destructive Earthquake zones and a few hundred kilometers from one of only three Super-Volcanoes in the world.

I thought yellowstone was the only active Super volcano? That goes off an the world ends.

 

[McBain]

I thought yellowstone was the only active Super volcano? That goes off an the world ends.

Nope, theres two equally life ending Magma chunderers down our way, and six in total across the world.

One is the North Island of New Zealand, the large lake Taupo smack bang in the center is actually a giant Caldera, and the other one is Lake Toba in Indonesia.

Slightly smaller ones are Aira in Japan, Valles Caldera in New Mexico, North Sumatra and Long Valley California.

I don't want to be around when any of them go off.

 

[McBain]

Chile, Earthquake | Chile Earthquake | News.com.au

 

[chicoazul]

Watching Fox News' coverage of this, I'm losing the will to live.

 

[McBain]

The Tsunami will be hitting our coast right about now.

 

[Reidy's Bottle Of Grecian]

The Chilean earthquake of February 27 2010 is thought to have shortened the length of the Earth's day by approximately 1.3 microseconds. This is because it was powerful enough to move the Earth's axis of spin by about 8cm. It's not the first earthquake to do so - the 2004 Sumatra quake is believed to have removed about 6.8 microseconds from the length of a day.


feck me !!

 

[moyes_bringin_it_back]

The Chilean earthquake of February 27 2010 is thought to have shortened the length of the Earth's day by approximately 1.3 microseconds. This is because it was powerful enough to move the Earth's axis of spin by about 8cm. It's not the first earthquake to do so - the 2004 Sumatra quake is believed to have removed about 6.8 microseconds from the length of a day.


feck me !!

Will quickly disappear

Because of tidal effects of the Moon, the length of a day increases at an average of 15 µs per year, so any rotational change due to the earthquake will be lost quickly. Similarly, the natural Chandler wobble of the Earth, which in some cases can be up to 15 m (50 ft), will eventually offset the minor wobble produced by the earthquake

Chandler wobble

On 18 July 2000, the NASA Jet Propulsion Laboratory announced that "the principal cause of the Chandler wobble is fluctuating pressure on the bottom of the ocean, caused by temperature and salinity changes and wind-driven changes in the circulation of the oceans."

 

[Reidy's Bottle Of Grecian]

wasn't he a mate of Johnny Rotten ?

 

[moyes_bringin_it_back]

wasn't he a mate of Johnny Rotten ?

The secular change in the rotation rate of Earth currently increases the length of day by 2.3 milliseconds per century. While this amount may seem astonishingly small, its accumulated effects have important consequences. In one century, Earth looses about 40 seconds, while in one millennium, the planet is over one hour "behind schedule." Astronomers use the quantity delta-T to describe this time difference.

Unfortunately, Earth's rotation is not slowing down at a uniform rate. Non-tidal effects of climate (global warming, polar ice caps and ocean depths) and the dynamics of Earth's molten core make it impossible to predict the exact value of delta-T in the remote past or distant future.


If you want a discussion on Delta-T and universal time have a look here:
Delta T (ΔT) and Universal Time

For many centuries, the fundamental unit of time was the rotational period of the Earth with respect to the Sun. Universal Time or UT (colloquially called Greenwich Mean Time or GMT) is based on mean solar time from Greenwich, England. Unfortunately, Universal Time is not a uniform time scale because Earth's rotational period is gradually decreasing.

So next time you're late for work. You can use that excuse with the boss!

 

[Mutzo Nutzo]

The secular change in the rotation rate of Earth currently increases the length of day by 2.3 milliseconds per century. While this amount may seem astonishingly small, its accumulated effects have important consequences. In one century, Earth looses about 40 seconds, while in one millennium, the planet is over one hour "behind schedule." Astronomers use the quantity delta-T to describe this time difference.

Unfortunately, Earth's rotation is not slowing down at a uniform rate. Non-tidal effects of climate (global warming, polar ice caps and ocean depths) and the dynamics of Earth's molten core make it impossible to predict the exact value of delta-T in the remote past or distant future.


If you want a discussion on Delta-T and universal time have a look here:
Delta T (ΔT) and Universal Time

For many centuries, the fundamental unit of time was the rotational period of the Earth with respect to the Sun. Universal Time or UT (colloquially called Greenwich Mean Time or GMT) is based on mean solar time from Greenwich, England. Unfortunately, Universal Time is not a uniform time scale because Earth's rotational period is gradually decreasing.

So next time you're late for work. You can use that excuse with the boss!

Ther's some clever lids on here

 

[Reidy's Bottle Of Grecian]

The secular change in the rotation rate of Earth currently increases the length of day by 2.3 milliseconds per century. While this amount may seem astonishingly small, its accumulated effects have important consequences. In one century, Earth looses about 40 seconds, while in one millennium, the planet is over one hour "behind schedule." Astronomers use the quantity delta-T to describe this time difference.

Unfortunately, Earth's rotation is not slowing down at a uniform rate. Non-tidal effects of climate (global warming, polar ice caps and ocean depths) and the dynamics of Earth's molten core make it impossible to predict the exact value of delta-T in the remote past or distant future.


If you want a discussion on Delta-T and universal time have a look here:
Delta T (ΔT) and Universal Time

For many centuries, the fundamental unit of time was the rotational period of the Earth with respect to the Sun. Universal Time or UT (colloquially called Greenwich Mean Time or GMT) is based on mean solar time from Greenwich, England. Unfortunately, Universal Time is not a uniform time scale because Earth's rotational period is gradually decreasing.

So next time you're late for work. You can use that excuse with the boss!

I'm impressed.....but also self-employed

 

[moyes_bringin_it_back]

Ther's some clever lids on here

Reidy was the one who spotted that the Earth quake was so big it made the earth wobble.


Note on the Richter Scale (ML) - it's not linear! And now they use the Mw (moment scale)


The energy release of an earthquake, which closely correlates to its destructive power, scales with the 3⁄2 power of the shaking amplitude. Thus, a difference in magnitude of 1.0 is equivalent to a factor of 31.6 ( = (101.0)(3 / 2)) in the energy released; a difference in magnitude of 2.0 is equivalent to a factor of 1000 ( = (102.0)(3 / 2) ) in the energy released

magnitude 7.0, = 32 megatons nuclear yield or = 134.4 PJoules 2010 Haiti Earthquake
magnitude 8.8 = 15.8 gigatons nuclear yield or = 66.6 EJoules Chile earthquake, 2010
So you can appreciate the scale of the release of energy:
6.25×10^19 J, the yearly electricity generation of the world as of 2005

6.66×10^19 J, the total energy released by the magnitude 8.8 2010 Chile Earthquake

It was more energy than every power station on the planet producing 365 days - released in 30 seconds.



The Haiti earthquake was 7.0 and the Chile earthquake was 8.8 (the biggest 20th Century quake was in Chile at 9.5 in 1960, infact is the most powerful ever recorded!).
List of earthquakes in Chile - Wikipedia, the free encyclopedia

 

[Mutzo Nutzo]

Reidy was the one who spotted that the Earth quake was so big it made the earth wobble.

That's only coz he spilt his pint!

 

[Reidy's Bottle Of Grecian]

That's only coz he spilt his pint!

always on call mate, so never drink, prob only had about 2 pints this year.