Other recent examples of suspicions that earthquakes were being caused by
nearby drilling are these: In Arkansas in recent weeks at shale gas field,
where a series of small earthquakes hit the area. This is an area where small
earthquakes were previously known. The relationship between the gas
development and the current earthquakes is disputed. There have been two
instances in geothermal development where drilling has been halted. One is in
the Geysers area north of San Francisco, California, again in an area where
small quakes are not uncommon but where locals believed the drilling and
fracturing was increasing the quake activity. This project had been funded by
public money and so was susceptible to public pressure. The second was in --
from sketchy memory -- Switzerland, also recently halted.
The quakes in these cases are not likely to be shifts of tectonic
plates.
Gene Coyle
On Mar 12, 2011, at 5:19 AM, jmp wrote:
>
>
> On 12/03/11 03:24, Fernando Cassia wrote:
>> On Fri, Mar 11, 2011 at 11:16 PM, Jim Devine <[email protected]> wrote:
>>> is there any evidence that earthquakes have been getting worse in
>>> recent centuries? if so, is there a reason for that?
>>
>> I´ve asked the local tv evangelist, and he says God is punishing us
>> for destroying traditional values and embracing socialism.
>
> Among many indigenous people it is of course common sense that Mother
> Earth is reacting to resource rape. Be that as it may, it is also a
> business and a science to study:
>
> Microseismic science is the study of very small scale earthquakes that
> are induced by industrial processes such as mining or oil production. In
> the 1980s, many mines in northern Ontario were experiencing increased
> seismic activity, including a large rockburst which killed 4 miners in
> Sudbury in 1984.[1] In response to this accident, a consortium of mining
> companies was established with government support to develop monitoring
> systems to acquire seismic waveforms and to study the causes and
> mechanisms of rockbursts[2][3]. The research lab at Queen’s University
> set out to develop instrumentation, software and processing routines to
> locate the source of microseismic activity in mines, and when the lab
> disbanded in the early 1990s, ESG’s founders continued this work in a
> commercial capacity.
>
> from: http://en.wikipedia.org/wiki/Engineering_Seismology_Group
>
> It is also floating in the mainstream:
>
> "Coal Mining Causing Earthquakes, Study Says":
> http://news.nationalgeographic.com/news/2007/01/070103-mine-quake.html
>
> "Mining process may trigger Texas earthquakes: Deep earth injection from
> natural gas mining may have caused series of small earthquakes":
> http://www.msnbc.msn.com/id/41761875/ns/technology_and_science-innovation/
>
> Now, imagine a grapefuit. Suck out all the juice and then assess its
> stability. Or, compare a baloon full of air with one without air. Quite
> different.
>
> The "same" goes for volcanic eruptions:
>
> "The enormous Lusi volcano in Sidoarjo, East Java, has been spewing out
> the equivalent of 60 Olympic swimming pools of boiling mud a day since
> it first erupted in May 2006 from a drilling hole, owned by oil and gas
> company Lapindo Brantas. Thirteen villages have been smothered by the
> sludge and 60,000 people have been made homeless. The mud now covers 7sq km.
>
> The new data, according to an international team of scientists led by
> Durham University, provides the strongest evidence to date that the
> world's biggest mud volcano was not caused by an earthquake that
> occurred two days earlier and 174 miles away, as Lapindo claims."
>
> from:
> http://www.guardian.co.uk/world/2010/feb/14/lusi-volcano-scientists-blame-lapindo
>
> About five years ago I wrote a funding proposal for a "social
> vulcanology" project with a vulcanologist friend and we discussed the
> issue, which he said we had to leave out of the proposal entirely - not
> even hinting at the local, indigenous perception - in order not to be
> laughed out by his colleagues. Things have changed since then.
>
>
> jmp
>
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