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2007 Guatemala City sinkhole: Difference between revisions

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==Collapse== ==Collapse==
In February 2007, the sinkhole collapsed, forming a very large, deep circular hole with vertical walls ({{Coord|14|39|1.40|N|90|29|25|W}}) and killing five people. Its location was in a poor neighbourhood in northeastern Guatemala City, at the intersection of intersection of 24 Avenida and 6 Calle.<ref name="Virtual Globetrotting">{{cite web | url=http://virtualglobetrotting.com/map/site-of-2007-guatemala-city-sinkhole/ | title=Site of 2007 Guatemala City Sinkhole | date=2010-06-01 | accessdate=2013-05-05}}</ref> This hole, which is classified by geologists as a "]" feature, was {{convert|100|m}} deep.<ref name="Waltham2008"/><ref name="Halliday2007"/> As a result, one thousand people were evacuated from the area.<ref name="David L Miller">{{cite news|author=David L Miller |url=http://www.cbsnews.com/stories/2007/02/23/world/main2508879.shtml |title=Massive Guatemala Sinkhole Kills 2 Teens |publisher=CBS News |date=2009-07-04 |accessdate=2009-07-08}}</ref> As a result, one thousand people were evacuated from the area.<ref name="David L Miller"/> Police established a 500-yard (457-meter) no-go zone around the sinkhole.<ref name="National Geographic" /> In February 2007, the sinkhole collapsed, forming a very large, deep circular hole with vertical walls ({{Coord|14|39|1.40|N|90|29|25|W}}) and killing five people. Its location was in a poor neighbourhood in northeastern Guatemala City, at the intersection of intersection of 24 Avenida and 6 Calle.<ref name="Virtual Globetrotting">{{cite web | url=http://virtualglobetrotting.com/map/site-of-2007-guatemala-city-sinkhole/ | title=Site of 2007 Guatemala City Sinkhole | date=2010-06-01 | accessdate=2013-05-05}}</ref> This hole, which is classified by geologists as a "]" feature, was {{convert|100|m}} deep.<ref name="Waltham2008"/><ref name="Halliday2007"/> As a result, one thousand people were evacuated from the area.<ref name="David L Miller">{{cite news|author=David L Miller |url=http://www.cbsnews.com/stories/2007/02/23/world/main2508879.shtml |title=Massive Guatemala Sinkhole Kills 2 Teens |publisher=CBS News |date=2009-07-04 |accessdate=2009-07-08}}</ref> Police established a 500-yard (457-meter) no-go zone around the sinkhole.<ref name="National Geographic" />


==References== ==References==

Revision as of 06:15, 23 May 2013

Not to be confused with 2010 Guatemala City sinkhole.
File:2007 Guatemala City sinkhole.jpg
The sinkhole, aerial view

The 2007 Guatemala City sinkhole is a 100-metre deep sinkhole which formed in Guatemala City in 2007, due to sewage pipe ruptures. Its collapse caused the deaths of five people, and the evacuation of over a thousand.

Formation

The sinkhole was created by fluid from a sewer eroding uncemented volcanic ash, limestone, and other pyroclastic deposits underlying Guatemala City. The hazards around the pipe have since then been mitigated, by improved handling of the city's wastewater and runoff, and plans to develop on the site have been proposed. However, critics believe municipal authorities have neglected needed maintenance on the city's aging sewerage system, and have speculated that more piping features are likely to develop unless action is taken.

Several rainstorms also contributed to the sinkhole's collapse, as stormwater percolated into the ground, further dissolving the rocks beneath Guatemala City. Citizens of Guatemala City near the sinkhole also reported hearing rumblings a few weeks before its collapse. The INSIVUMEH (Guatemala's seismology institute) had placed a seismic meter there before the disaster; a robotic camera system was supposed to enter the cavity, but the disaster occurred first.

Collapse

In February 2007, the sinkhole collapsed, forming a very large, deep circular hole with vertical walls (14°39′1.40″N 90°29′25″W / 14.6503889°N 90.49028°W / 14.6503889; -90.49028) and killing five people. Its location was in a poor neighbourhood in northeastern Guatemala City, at the intersection of intersection of 24 Avenida and 6 Calle. This hole, which is classified by geologists as a "piping pseudokarst" feature, was 100 metres (330 ft) deep. As a result, one thousand people were evacuated from the area. Police established a 500-yard (457-meter) no-go zone around the sinkhole.

References

  1. ^ Waltham, T., 2008, Sinkhole hazard case histories in karst terrains. Quarterly Journal of Engineering Geology and Hydrogeology. vol. 41 no. 3, pp.. 291-300.
  2. ^ Halliday, W. R., 2007, Pseudokarst in the 21st century. Journal of Cave and Karst Studies. vol. 69, no. 1, p. 103–113.
  3. Reilly, Michael (Jun 4, 2010). "Don't Call The Guatemala Sinkhole a Sinkhole". Retrieved 2013-05-06.
  4. Constantino Diaz-Duran (2010-06-01). "Sinkhole in Guatemala City Might Not Be the Last". The Daily Beast. Retrieved 2010-06-03.
  5. ^ Chamberlain, Ted (February 26, 2007). "Photo in the News: Giant Sinkhole Swallows Guatemala Homes". National Geographic. Retrieved 2013-05-05.
  6. "Third body pulled from giant sinkhole". NBC News. NBC. 2007-02-24. Retrieved 2013-05-05.
  7. "Site of 2007 Guatemala City Sinkhole". 2010-06-01. Retrieved 2013-05-05.
  8. David L Miller (2009-07-04). "Massive Guatemala Sinkhole Kills 2 Teens". CBS News. Retrieved 2009-07-08.
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