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
| Dec 23, 2014
Dunkin’ Donuts launches green building certification for its restaurants
Dunkin Donuts has launched a green building certification program to help franchisees build sustainable, energy-efficient restaurants.
| Dec 23, 2014
EPA releases WaterSense draft specification for flushometer-valve toilets
The U.S. Environmental Protection Agency's WaterSense program has released a draft specification for water-efficient flushometer-valve toilets.
| Dec 23, 2014
American Iron and Steel Institute publishes design guide for new profiled steel diaphragm panels standard
The American Iron and Steel Institute (AISI) published AISI D310-14, “Design Examples for the Design of Profiled Steel Diaphragm Panels Based on AISI S310-13.”
| Dec 18, 2014
New federal regulations impact construction firms doing business with Uncle Sam
Federal contractors may be subject to several new rules in 2015 that impact how they are selected for contracts and how they do business with the federal government.
| Dec 18, 2014
ASHRAE/IES energy standard could become more applicable for global use
A proposed addendum to ANSI/ASHRAE/IES Standard 90.1-2013, Energy Standard for Buildings Except Low-Rise Residential Buildings would make the standard more applicable for use around the world.
| Dec 18, 2014
Boston testing mobile building permit tracking app
The app called Permit Finder could free city employees from having to respond to the 30 to 40 permit status-related calls they receive each week.
| Dec 18, 2014
Deal on 2015 budget slashes most federal construction spending
The $1.1 trillion funding bill for fiscal year 2015 approved by Congress makes deep cuts in some construction programs, but the General Services Administration suffered just a short haircut by comparison.
| Dec 11, 2014
Mayor backs reform of Pittsburgh inspection, permitting practices
The proposal, among other things, would impose a rental registration program and fee targeted at keeping better track of problem landlords.
| Dec 11, 2014
Los Angeles mayor proposes earthquake retrofit program
The ambitious program would focus on some apartment buildings built before 1978 and concrete buildings constructed before 1976.
| Dec 11, 2014
Outdated building code hampering recruitment of high-tech businesses in New York State
New York State’s building code is outdated and is hampering the recruitment of high-tech employers, according to a coalition of construction, fire safety, and insurance industry groups.
