The U.S. Geological Service recently released an update of U.S. National Seismic Hazard Maps that reflect the latest analysis of where future earthquakes will occur, how frequently they may occur, and their strength.
While all states have some potential for earthquakes, 42 of the 50 states have a reasonable chance of experiencing damaging ground shaking from an earthquake in the next 50 years. Sixteen states have a relatively high likelihood of experiencing damaging ground shaking. These states have historically experienced earthquakes with a magnitude 6 or greater. The hazard is especially high along the west coast, intermountain west, and in several active regions elsewhere such as near New Madrid, Mo., and near Charleston, S.C.
The eastern U.S. has the potential for larger and more damaging earthquakes than considered in previous maps and assessments. This finding is due to what scientists learned following the magnitude 5.8 earthquakes that struck Virginia in 2011. It was among the largest earthquakes to occur along the east coast in the last century, and indicated that even larger events in the region are possible.
The maps are used in risk analyses calculated using factors such as population levels, building exposure, and building construction practices. These assessments are used for establishing building codes, in the analysis of seismic risk for key structures, and in determining insurance rates. They can also aid emergency preparedness plans, and private property decisions such as re-evaluating one’s real estate and making it more resilient.
(http://www.usgs.gov/blogs/features/usgs_top_story/new-insight-on-the-nations-earthquake-hazards/)
Related Stories
| Jul 17, 2013
WorldGBC, IFC pledge to rapidly scale up green construction in emerging markets
IFC, a member of the World Bank Group, and the World Green Building Council (WorldGBC) are collaborating to rapidly scale up the construction of green buildings in emerging markets.
| Jul 17, 2013
Louisiana governor signs $250 million bill for 29 community college projects
Louisiana Gov. Bobby Jindal signed into law this month a bill that provides $251.6 million for 29 projects at Louisiana Community and Technical College campuses.
| Jul 17, 2013
U.S. House continues to block enforcement of light bulb standards
The House of Representatives last week voted to block the enforcement of light bulb standards that many say would effectively force people to buy more expensive compact fluorescent bulbs.
| Jul 17, 2013
Should city parking space requirements be abolished?
Some cities are deliberately discouraging construction of new parking spaces by allowing the construction of buildings with a lower ratio of parking spaces to dwellings (as low as 0.75 spaces per residence).
| Jul 17, 2013
EPA continues work on new federal stormwater regulations that are expected to impact development
The Environmental Protection Agency continues to develop new stormwater regulations that are expected to force project developers to write stormwater considerations into designs.
| Jul 11, 2013
DOE releases stricter energy efficiency standards for new federal buildings taking effect in 2014
The Energy Department released stricter energy efficiency standards this month for new federal buildings.
| Jul 11, 2013
Pennsylvania legislators work on bill to update demolition codes following fatal building collapse
Pennsylvania lawmakers are working on a bill to update demolition codes, in the wake of a fatal building collapse in Philadelphia in June.
| Jul 11, 2013
Lawsuit challenges modular apartment project in New York City
A plan to build pre-fab apartment buildings at Atlantic Yards in Brooklyn, N.Y., has been challenged by a lawsuit filed by the Plumbing Foundation in Manhattan Supreme Court.
| Jul 5, 2013
OSHA to launch program to protect workers from isocyanate exposure
The Occupational Safety and Health Administration (OSHA) has announced a new national emphasis program (NEP) to protect workers from serious health effects caused by occupational exposure to isocyanates.
| Jul 5, 2013
New California building code expected to boost energy demand response technology
The California master building code, set to go into effect on Jan. 1, 2014, includes a few changes that could push automated, open-standards-based demand response into the mass market.