A bit wet

[Jovial Monk]

Little bit pedantic, but none of those events you listed causes an earthquake—it may trigger one a little bit earlier is all. Earthquakes are caused by tectonic events—the “collision” of tectonic plates and orogeny (mountain building.)

[mantra]

but none of those events you listed causes an earthquake—it may trigger one a little bit earlier is all

Obviously geology isn't my favourite subject - but glad you acknowledged that earthquakes can be triggered a little earlier than expected through extraneous circumstances. With our sea temperature increasing and becoming a dumping/drilling ground and taking glacier movement into consideration you can assume then that earthquakes will occur more frequently because of our extreme habits.

Just another tick for global warming caused through human activity. I've been back to sitting on the fence for a while as both sides haven't really given credible arguments and usually graphs produced don't appear to prove anything as they cover such a short period of time.

Maybe this new method of measuring atmospheric temperature will prove that the skeptics are wrong. It's a pity it will take decades to produce hard evidence.

[Jovial Monk]

No, what may really cause earthquakes would be mass thawing of ice on Antarctica. That is starting but only just starting, if it ceases or accelerates is up to us.

[Outlaw Yogi]

That is an excellent chart Yogi. I've saved a copy of the site. The graph at the bottom seems to indicate that there isn't any substantial change to the weather pattern. There seem to be cycles of similar changes approximately 40-60 years apart.

Yes the chart's a beauty, especially full size -very large laminated wall poster, cost $4 (in 2007) I think.
Changes in weather patterns are subtle but documented. Weather zones are moving away from the equator toward polar regions. For example wind currents over OZ have moved south, so many rain bearing clouds that formerly rained on mainland OZ now do so in the Southern Ocean where its of no use to us. Thus longer droughts.

Little bit pedantic, but none of those events you listed causes an earthquake—it may trigger one a little bit earlier is all. Earthquakes are caused by tectonic events—the “collision” of tectonic plates and orogeny (mountain building.)

Quakes can be caused by slippage/movement along surface and subterranean fault lines with no connection to tectonic activity whatsoever. Localised quakes are often caused by changes in pressure on rock strata as a result of building dams, fortunately this is well known and so dams are built accordingly to cope with such events.

No, what may really cause earthquakes would be mass thawing of ice on Antarctica.

Well at least you finally got something right.
Back on page 6 of ..climate change and how the left has been misleading public http://ozpolitic.com/polanimal/viewtopi ... kes#p32540 .. I wrote ...

The more I look the scarier it gets.

Just wait until the isotropic quakes start.
That should be pretty scary

Isotropic quakes are a result of reduced pressure on land masses due to reduced weight of thawing ice.
As the weight of ice dissipates, pressure from magma causes parts of the crust to bend/flex and rise by upto 1km without fracturing/cracking, and land masses on the periphery of such areas take a corresponding dive. If such places are low lying land, its submerged into the ocean (as per Plato's Atlantis story).
In the geological record isotropic quakes tend to be associated with periods of catastrophism and are believed to have been many times the magnitude measurable by Richter's scale.

[Jovial Monk]

What created those “surface and subterranean fault lines”?

[Outlaw Yogi]

What created those “surface and subterranean fault lines”?

Some (like those surrounding you and I) were caused by orogenic folding/crumpling due to tectonic activity.

“There are numerous young faultlines weaving their way across southern Australia, including one that goes right around the perimeter of Adelaide.

http://cooberpedyregionaltimes.wordpres ... australia/



And others (usually within the Lithosphere) can be a result of collapsed volcanic calderas. Which seems to the sole source of seismic activity on extra terrestrial bodies.

Since the early 1960s it has been known that volcanism exists on other planets and moons. Through the use of manned and unmanned spacecraft, volcanism has been discovered on Venus, Mars, the Moon and Io, a satellite of Jupiter. None of these orbs has plate tectonics, which contributes approximately 60% of the Earth's volcanic activity (the other 40% attributed to hot spot volcanism) (Wilson 2008). Caldera structure is similar on all of these planetary bodies, though the size varies considerably. The average caldera diameter on Venus is 68 km. The average caldera diameter of Io is close to 40 km, and the mode is 6 km. Tvashtar Paterae is likely the largest caldera on Io with a diameter of 290 km. The average caldera diameter of Mars is 48 km, smaller than Venus. Calderas on Earth are the smallest of all planetary bodies and vary from 1.6 to 80 km as a maximum (Gottsmann 2008).

http://en.wikipedia.org/wiki/Caldera#Ex ... l_calderas

Probably worth noting Anthropogenic induced quakes as well.
Mantra was quite correct when citing human activity as a cause of quakes.

While most earthquakes are caused by movement of the Earth’s tectonic plates, human activity can also produce earthquakes.

Four main activities contribute to this phenomenon: constructing large dams and buildings, drilling and injecting liquid into wells, and by coal mining and oil drilling.

Perhaps the best known example is the 2008 Sichuan earthquake in China’s Sichuan Province in May; this tremor resulted in 69,227 fatalities and is the 19th deadliest earthquake of all time.

The Zipingpu Dam is believed to have fluctuated the pressure of the fault 1,650 feet (503 m) away; this pressure probably increased the power of the earthquake and accelerated the rate of movement for the fault.

The greatest earthquake in Australia’s history was also induced by humanity, through coal mining. The city of Newcastle was built over a large sector of coal mining areas. The earthquake was spawned from a fault which reactivated due to the millions of tonnes of rock removed in the mining process.

http://cooberpedyregionaltimes.wordpres ... australia/

[Jovial Monk]

Nope, my statement was 100% correct. You mention faults—those faults were there before the anthropogenic activity.

Only “earthquakes” man causes is subsidence (i.e. not real earthquakes) due to removal of oil or gas or minerals and overburden.

[Outlaw Yogi]

No, you're full of $#!+.
The topic in question was the cause of Earth quakes, which you made out is due to tectonic activity only, end of story.
Which I have demonstrated is incorrect, but you cannot accept that you got something wrong.

Its no wonder everybody regards and treats you like an idiot.
Clearly you are still too imature to take responsibility for what you say and do, like a 7 year old blaming everyone else for their self induced dramas.

[Neferti]

No, you're full of $#!+.
The topic in question was the cause of Earth quakes, which you made out is due to tectonic activity only, end of story.
Which I have demonstrated is incorrect, but you cannot accept that you got something wrong.

Its no wonder everybody regards and treats you like an idiot.
Clearly you are still too immature to take responsibility for what you say and do, like a 7 year old blaming everyone else for their self induced dramas.

Outlaw Yogi = 1
Jovial Monk = 0

[Jovial Monk]

Naffie got an F for geology.

I showed the faults you mention, that man’s activity might accelerate movement in—might—were put there by tectonic events.

The only “earthquakes” man has caused is subsidence by removal of underground material.