Top 5 Ways to Cause a Man-Made Earthquake


	Top 5 Ways to Cause a Man-Made Earthquake

lollipop10

8-16-2009 9:31 PM

157 views

tags:

earthquake, dam, three gorges dam

lollipop10 says:

The rest are at the site of course.
I'm still waiting on the Three Gorges Dam...

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/1d450562-31b9-49a3-94ae-d88833f0712d/C87EEC02-23D2-494E-9E01-FBEB39F072A0/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.wired.com/wiredscience/2008/06/top-5-ways-that/" href="http://www.wired.com/wiredscience/2008/06/top-5-ways-that/" style="font-size: 11px;">www.wired.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.wired.com/wiredscience/2008/06/top-5-ways-that/"><P></p> <P><SPAN id="more-2887"></SPAN></p> <P><STRONG><A href="http://www.wired.com/images_blogs/photos/uncategorized/2008/06/04/hooverdam.jpg" linkindex="65"><IMG width="660" height="442" border="0" src="http://www.wired.com/images_blogs/wiredscience/images/2008/06/04/hooverdam.jpg" title="Hooverdam" alt="Hooverdam" /></A></STRONG></p> <P><STRONG></STRONG></p> <P><STRONG>1. Build a Dam: </STRONG>Water is heavier than air, so when the valley behind a dam is filled, the crust underneath the water experiences a massive change in stress load. For example, the Hoover Dam area experienced hundreds of quakes as Lake Mead filled. University of Alaska seismologist Larry Gedney explained, "Since [the dam] reached its peak of 475 feet in 1939, the level of seismicity has fluctuated in direct response to water level. None of the shocks has been particularly damaging — the largest was about magnitude 5 — but the area had no record of being seismically active." Other examples of <A href="http://www.internationalrivers.org/en/africa/earthquakes-triggered-africas-katse-dam-force-families-abandon-damaged-village" linkindex="66">dam-caused quakes abound</A> and Klose’s research indicates that about one-third of human-caused earthquakes came from reservoir construction. This science has raised fears that the <A href="http://earthquake.usgs.gov/eqcenter/eqinthenews/2008/us2008ryan/#scitech" linkindex="67">recent earthquake</A> in China was caused <A href="http://www.probeinternational.org/catalog/content_fullstory.php?contentId=6809&cat_id=7" linkindex="68">by the filling of the Three Gorges Dam reservoir</A>, although no conclusive evidence has been presented.  </P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/C87EEC02-23D2-494E-9E01-FBEB39F072A0/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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