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HomeNewsGeologic HazardsMidwest Flooding – Collection of Links

Midwest Flooding – Collection of Links

July 1, 2008 rockman Geologic Hazards Comments Off on Midwest Flooding – Collection of Links

 

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Example historical USGS topo map of Highlands, TX from 1912
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USGS Historical Topographic Map Explorer

August 4, 2014 rockman Available Resources Comments Off on USGS Historical Topographic Map Explorer

Esri announced earlier this summer that they were making over 175,000 historical maps from the USGS available online. The maps are available to anyone to view online using their web map viewer. Or ArcGIS online […]

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Geologic Hazards

What Would a Large Earthquake Do to Downtown L.A.?

November 7, 2008 rockman Geologic Hazards Comments Off on What Would a Large Earthquake Do to Downtown L.A.?

USGS LogoFrom the USGS Newsroom:

USGS scientist Ken Hudnut fills us in on how science created the theoretical magnitude 7.8 earthquake behind the Great Southern California ShakeOut—the largest earthquake preparedness drill in U.S. history, coming Nov. 13—and what such an earthquake would do to downtown Los Angeles.

Seems like they did it right wiith this study. They had multiple teams independenlty come up with the ground shaking model, then had different structural engineers who are experts in seismic design of large buildings review the tall buildings in the L.A. area for the design earthquake. They say that buildings would likely come down in the 7.8 magnitude event. Click through to watch the video interview from the USGS.

 

[…]

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Levee bank near Stockton, CA during a 2011 levee inspection
Geologic Hazards

180 Miles of California Levees Declared Ineligible for Federal Rebuild Funds

October 18, 2012 rockman Geologic Hazards Comments Off on 180 Miles of California Levees Declared Ineligible for Federal Rebuild Funds

The Army Corps of Engineers announced last month that 17 levee systems in central California totaling 180 miles will be inelligible for federal rehabilitation assistance in the event they are damaged in a flood. This […]

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