Latest topics
» Dane Wigington and Prof. Paul Beck with Host Geoff Brady - Geoengineering Watch Global Alert News
Today at 12:56 pm by Consciousness Of Economic

» Russia's gold rush continues, with reserves at all-time high
Today at 12:55 pm by Consciousness Of Economic

» Trump to announce anti-opioid plan with death penalty for dealers
Today at 12:53 pm by Consciousness Of Economic

» Canal completely drained after huge 100ft wide sinkhole opens up just feet from a boat in Cheshire, UK
Today at 12:20 pm by PurpleSkyz

» UPDATE - CREEPY Voicemail Message Is "Shaking" The Internet
Today at 11:45 am by PurpleSkyz

» Fastwalker
Today at 11:00 am by PurpleSkyz

» Fundamentals 2&3: Are You a Citizen? By Anna Von Reitz
Today at 10:57 am by PurpleSkyz

» I AM by Ines Radman
Today at 10:55 am by PurpleSkyz

» Values… by Visionkeeper
Today at 10:53 am by PurpleSkyz

» The Game 2.-
Today at 10:52 am by PurpleSkyz

» Benjamin Fulford 3-19-18
Today at 10:49 am by PurpleSkyz

» Glasses come to the fullness with Light
Today at 10:48 am by PurpleSkyz

» UFO News ~ Triangular UFO photographed by an airplane passenger over Texas plus MORE
Today at 10:44 am by PurpleSkyz

Today at 10:35 am by PurpleSkyz

» American SwissIndo aka Cindy Kay Currier - THIRD CONTINENTAL CONGRESS -
Today at 10:13 am by PurpleSkyz

» What is religion? Fake news? - David Icke
Today at 10:09 am by PurpleSkyz

» Ken O'Keefe Update on Banned Youtube Videos - 'Youtube is a comin'
Today at 10:08 am by PurpleSkyz

Yesterday at 10:43 pm by robert18

» Anna Tells it Like it Is to Kim (the RV Guru Scamtastic) Possible
Yesterday at 4:16 pm by MartyM

» Shadow Government is Collapsing
Yesterday at 4:15 pm by PurpleSkyz

Yesterday at 3:51 pm by EL_O_EL

» Five NYC doctors are charged with taking $800,000 of bribes, lap dances and other kickbacks from a pharmaceutical company
Yesterday at 3:28 pm by Consciousness Of Economic

You are not connected. Please login or register

Out Of Mind » SOLAR & PLANETARY ALERTS & INFO » ATMOSPHERIC CHANGES » Lorca earthquake ’caused by groundwater extraction’

Lorca earthquake ’caused by groundwater extraction’

Go down  Message [Page 1 of 1]


Lorca earthquake ’caused by groundwater extraction’

The relatively modest Magnitude 5.1 quake resulted in extensive damage and nine deaths

Related Stories

Scientists studying the
fault beneath the Spanish city of Lorca say that groundwater removal may
be implicated in a deadly 2011 earthquake there.

Detailed surface maps from satellite studies allowed them to infer which parts of the ground moved where.

They report in Nature Geoscience that those shifts correlate with locations where water has been drained for years.

The study highlights how human activity such as drainage or borehole drilling can have far-reaching seismic effects.

Pablo Gonzalez of the University of Western Ontario and colleagues
used satellite radar data to trace the ground movements of the Lorca
event back to their source, finding that the earthquake resulted from
slippage on a comparatively shallow fault that borders a large water
basin south of the city.

That the slippage happened at a depth of just 3km explains why the
fairly mild Magnitude 5.1 quake caused so much damage in the area.

The team went on to study potential reasons for the slippage, finding
that the water table in the adjacent Alto Guadalentin basin had dropped
by some 250m over the last 50 years as water was drained for irrigation
in the region.

Their calculations show that this created stresses on the fault that
initially triggered the earthquake and defined its eventual magnitude.

Geoengineering dreamsHowever, the
area lies on a seismically active region, and the data suggest only that
the water drainage sped up and eventually triggered a process that
would have eventually happened anyway.

“Start Quote

We should remain cautious of human-induced stress
perturbations, in particular those related to carbon dioxide
sequestration projects”

Jean-Philippe Avouac California Institute of Technology

Dr Gonzalez stressed the study was specific to
the Lorca earthquake, telling the Reuters news agency that “we cannot
set up a rule just by studying a single particular case”.

“But the evidence that we have collected in this study could be
necessary to expand research in other future events that occur near…
dams, aquifers and melting glaciers, where you have tectonic faults
close to these sources.”

In an accompanying Nature Geoscience article,
Jean-Philippe Avouac of the California Institute of Technology said:
“It does not take much to trigger an earthquake – even strong rainfall
can do the job”.

“Numerous examples of seismicity triggered by the impoundment of
reservoir lakes, hydrocarbon extraction, quarrying and deep well
injections have been documented over the years.”

Previous research has suggested that the fluid injection associated
with the controversial practice of gas extraction by hydraulic
fracturing or “fracking” was linked so specific earthquake events.

If science can pin down exactly how stresses from anthropogenic
sources distribute and contribute to seismic events, Prof Avouac
suggested, “we might dream of one day being able to tame natural faults
with geoengineering”.

“For now, we should remain cautious of human-induced stress
perturbations, in particular those related to carbon dioxide
sequestration projects that might affect very large volumes of [the
Earth's] crust.”

BBC News – Lorca earthquake ’caused by groundwater extraction’.

Thanks to:


Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum