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
Codes and Standards | Oct 19, 2018
Global Green Tag production certification standard will launch in U.S. at end of year
Australian program recognized by WELL, claims compliance with LE.
Codes and Standards | Oct 18, 2018
Federally-backed rebuilding of public buildings often leaves them vulnerable to future storms
FEMA dollars pay for reconstruction, but local decision-makers ignore climate change impacts.
Codes and Standards | Oct 17, 2018
Philadelphia plumbing code will now allow for more use of plastic pipes in high rises
Of the 50 largest U.S. cities, Philadelphia is one of just six that still require metal pipes.
Codes and Standards | Oct 16, 2018
New Disaster Recovery Reform Act will support adoption of updated building codes
Provides incentives for communities to modernize and enforce codes.
Codes and Standards | Oct 12, 2018
Boston ‘housing emergency’ prompts regional initiative for new residential construction
Mayors of 15 cities set goal of 185,000 new homes by 2030.
Codes and Standards | Oct 11, 2018
On-site staff key to energy benchmarking project for property management company
Manager training, data sharing are critical to meeting 20% utility cost reduction goal.
Codes and Standards | Oct 10, 2018
Interactive heat maps track temperature ranges in U.S. cities
Urban heat island effect can vary by as much as 37°F in the same city.
Codes and Standards | Oct 9, 2018
Power systems will become more decentralized for better disaster resiliency
Businesses, homeowners will control more power-generation capacity.
Codes and Standards | Oct 5, 2018
Getting commitments from key subs critical on government contracts
Withdrawn subcontractor bids can be costly.
Codes and Standards | Oct 4, 2018
Internal watchdog says EPA falling short to protect school children from asbestos
Agency not conducting enough inspections, report says.
