Magnitude 7.1 Quake Shakes Solomon Islands

Fox News ^ | 4/11/2010 | AP

[AngieGal]

A major earthquake has struck off the Solomon Islands, but a tsunami was not expected.

The U.S. Geological Survey said the 7.1-magnitude quake struck at Sunday evening. Its epicenter was about 130 miles southeast of the capital, Honiara, in the Pacific Ocean.

[WVKayaker]

If you know about wheel balancing, you put a weight on the outside to reduce wobble. Wrong weight can increase it.

The Pacific hasn't moved lately, has it?

There are more frequent earthquakes these days, and man has moved mountains, and added dams... just wondering?

God set that all in motion before man came into the picture... and we know how to screw things up real well.

[SoldierDad]

Neither can several of my family members living near the epicenter.

[Palladin]

Is there a thread about the earthquake in Granada, Spain,today?

[WVKayaker]

You must be swilling that wastewater. Water is not pollutant. This answers.com quote:

How much does water weigh?

Answer

1 kilogram per liter
1000 kilogram per m3
1 gram per milliliter

8.34 lbs per gallon

The question as it is currently written shows a lack of understanding of weight, mass, and volume. One might answer the question with the question How much water? or How much water and on what planet? The real question here is instead what is the density of water, which is the mass of water per unit volume.

The weight of any object or substance depends upon how much matter there is and where it is because weight is a dependent on gravity. The weight of, say, a gallon of water on the surface of the Earth is greater than the same amount of water on the moon. Put another way, a quart of water on Earth might weigh as much as a gallon of water on the moon because there is much less gravity on the moon.

So, assuming you want to know how much a gallon of water weighs here on Earth, figure about 8.34 pounds. See the related questions for more answers to your question.

The density is the mass of water divided by its volume. Since mass doesn’t depend on gravity, the mass of an equal volume of water is the same everywhere. The density of water is 1 gram per milliliter (or equivalently 1 kilogram per liter). The density of water does depend on temperature however. The value of 1 kg/L is for water at 24 °C.

[SierraWasp]

Hey! All you kayakers and rafters that hate dams are just swilling that "reservoir induced seismicity" kool-aid almost to the extent that you've devoured the Three Gourges Reservoir full of it!!!

If you believe in it, because you can't possibly prove it, then you'll also believe in human caused global warming!!!

And if you'll believe that, you'll believe just anything at all!!! Or else, it's just some liberal wishful thinking!!!

Are you guys suffering some supposed shortage of navigable waters? Why can't you admit that rafting and kayaking would be up a creek without a paddle if it weren't for dams deferring flows in streams until late in summer and early fall???

[John W]

Nope, ace. Thats the formula for pounds of any pollutant “in the effluent”.

[Snickersnee]

were there any earthquakes reported during WW2?

One night in 1943, my father said, an earthquake on Bougainville bounced him right out of his foxhole. He was semi-dozing, and thought that a Jap battleship shell had landed not far away!

[Myrddin]

Your figure is correct. I still think the concern about the dam is not correct with respect to "wobble". That mass of water might have some significant influence with respect to depressing the land mass in the area. The weight wasn't there until the dam collected it in that location. A greater concern is what happens downstream when a significant earthquake breaches the dam.

[WVKayaker]

Who hates dams? I just posited a question. In WV, we usually get the big flows this time of year. You must live in the desert.

As for AGW... my tag says it all!

[Jack Hydrazine]

Check out this table on the weight and density of water at various temperatures.

http://www.engineeringtoolbox.com/water-density-specific-weight-d_595.html

[WVKayaker]

Your Ignorance can’t be cured with facts, can it? The formula for what? Water weighs 8 1/3 pounds per gallon on earth! If you are using 8 pounds as a reference on earth, you are reporting facts not in evidence. Only Ice or steam weighs less by volume.

http://www.fourmilab.ch/hackdiet/www/subsection1_4_2_0_7.html
The Weight of Water

Pounds Grams Kilograms
Cubic cm. 0.002205 1 0.001
Cubic inch 0.036127 16.387064 0.0163871
Liter 2.204684 1000.028 1.000028
Gallon 8.345404 3785.4118 3.7854118
Cubic foot 62.42796 28316.847 28.316847

http://wiki.answers.com/Q/How_much_does_one_gallon_of_water_weigh

How much does one gallon of water weigh?

Weight of 1 US Gallon of water = approx. 8.35

http://www.engineeringtoolbox.com/water-density-specific-weight-d_595.html

At aprox. 4oC (39.2oF) pure water has it’s highest density (weight or mass):
1 g/cm3 = 1 g/ml = 1 kg/litre = 1000 kg/m3 = 1 tonne/m3 = 62.4 lb/ft3 = 8.34 lb/gallon.

[WVKayaker]

My thoughts were of “pushing on the side of a balloon and watching it expand or distort on the other side”. I’m sure I’m wrong, but not totally!

[blam]

"I wonder if the concentration of weight from the big Chinese dam could influence the wobble of the globe, and cause a disruption under the surface? "

I did read that this dam affected the orbit of the earth by about one inch...I really did read that.

[SierraWasp]

Well, lemme tell ya pilgrim... that chinese reservoir's total contents as compared to the Pacific Ocean amounts to about one drop of fresh spit, sitting on the lip of some hyper-fanitic whitewater rafter or kayaker yellin about "reservoir induced seismicity" till the cows come home!!!

Phhhhhht!!!

[Global2010]

We had one off of the Oregon Coast Easter Sunday around 4:30pst.

[Myrddin]

I found that one as well before my reply that the quoted weight was correct. My error was assuming the density is 1.0. That works fine when measuring in grams vs cubic centimeters. I was surprised to hear that 8 lbs of water isn’t volumetrically a gallon.

[Myrddin]

The Pacific moves constantly. It’s called tidal motion. The moon is the principal cause. Even dry land is affected by this tidal gravity wave. The sun also has an impact with stronger tides in the Dec/Jan time frame. Each month a syzygy occurs when the sun/moon/earth for a straight line. That further magnifies the distortion of the earth by external gravitational forces. There is also motion due to wind and storms.

[Jack Hydrazine]

I remember from chemistry class that it is 1.0g/mL and for some reason I thought it was 8.1 lbs. per gallon but I was wrong too until I double checked what that guy said. So now I know that it is about 8.33. Live and learn!

[Amerigomag]

I wonder if the concentration of weight from the big Chinese dam could influence the wobble of the globe, and cause a disruption under the surface?

Probably not beyond a local phenomena. The mass of the dam is insignificant compared to the mass of the crust and provides no contributive mass in rotational equations involving the mantle. Man's redistribution of mass on the earth's surface simple isn't a factor outside political speech.