Governor Markell joins DNREC Secretary David Small in honoring Delawares 2015 Young Environmentalists in State Fair ceremony
NORTH LITTLE ROCK – Federal assistance may be available to help Arkansas communities rebuild infrastructure to higher, more disaster-resistant standards and state officials are encouraging local governments to take advantage of that funding.
The assistance to communities is part of the aid that became available following the severe storms, tornadoes, straight-line winds, and flooding during the period of May 7 to June 15, 2015.Language English
Reclaim Our River Program to hold Second Annual Recycled Cardboard Boat Regatta Aug 8 on Nanticoke River
Winners of 29th Annual Youth Fishing Tournament honored today at Delaware State Fair Governors Day ceremony
Following is a summary of key federal disaster aid programs that can be made available as needed and warranted under President Obama's disaster declaration issued for the State of South Dakota.
Assistance for the State and Affected Local and Tribal Governments Can Include as Required:Language English
WASHINGTON, D.C. – The U.S. Department of Homeland Security's Federal Emergency Management Agency announced that federal disaster aid has been made available to the State of South Dakota to supplement state, local and tribal recovery efforts in the area affected by severe storms, tornadoes, straight-line winds, and flooding during the period of June 17-24, 2015.Language English
OKLAHOMA CITY – Disaster survivors in four newly designated counties in northeastern Oklahoma might soon see Disaster Survivor Assistance (DSA) teams knocking on their doors. The teams will be visiting residents in Adair, Cherokee, Delaware and Ottawa counties, which are among 12 counties recently approved for state and federal disaster assistance.Language English
Winners of Hunting and Fishing Photo Contests honored today at Delaware State Fair Governors Day ceremony
Kansas City, Mo. –The U.S. Department of Homeland Security’s Federal Emergency Management Agency’s (FEMA) Region VII office announced today there will be a routine biennial exercise conducted with Omaha Public Power District for the Fort Calhoun Nuclear Station in Nebraska on Aug. 4, 2015, followed by a public meeting.
Exercise participants will include: the states of Nebraska and Iowa; Washington County in Nebraska; Pottawattamie and Harrison counties in Iowa; and the Omaha Public Power District.Language English
OKLAHOMA CITY – To date, Oklahomans have received more than $40.7 million in grants, low-interest loans and insurance settlements from the federal government, helping to rebuild the lives of families and help out businesses affected by the severe weather and subsequent flooding during the period of May 5 through June 22.
Nearly 10,000 families have registered for assistance with the Oklahoma Department of Emergency Management, the Federal Emergency Management Agency and the U.S. Small Business Administration (SBA).Language English
WASHINGTON – Today, the U.S. Department of Homeland Security's Federal Emergency Management Agency (FEMA) and Portlight Strategies (Portlight) announced an agreement that will increase preparedness awareness for people with disabilities in the event of natural or man-made disasters. The agreement aligns with FEMA’s commitment to inclusive emergency management by partnering with disability organizations and community leaders who serve the whole community at the local level.Language English
AUSTIN, Texas – Federal dollars are flowing into Texas communities recovering from the May 4 through June 22 storms, straight-line winds, tornadoes and floods.
To date, more than $306 million in federal grants, U.S. Small Business Administration (SBA) low-interest disaster loans, and National Flood Insurance Program (NFIP) claims have been approved.
The Federal Emergency Management Agency (FEMA), partners in the state’s recovery, provide the following summary of disaster assistance efforts as of close of business July 29:Language English
WASHINGTON – August 2015 marks the tenth year since the devastating 2005 Atlantic Hurricane Season. According to the National Oceanic and Atmospheric Administration (NOAA), Hurricane Katrina was one of the strongest storms to impact the coast of the United States, causing widespread devastation and affecting an estimated 90,000 square miles along the central Gulf Coast states. Less than a month later, Hurricane Rita and then Hurricane Wilma in October made landfall compounding an already catastrophic situation.Language English
New Simulations of 1811-1812 New Madrid Earthquakes Show Strong and Prolonged Ground Shaking in Memphis and Little Rock
Heidi Koontz ( Phone: 303-202-4763 );
Computer simulations of earthquake shaking, replicating the quakes that occurred in 1811-1812 in the New Madrid seismic zone (NMSZ), indicate that future large earthquakes there would produce major, prolonged ground shaking. The 1811-1812 events were some of the largest in the United States since its settlement by Europeans, and the NMSZ spans portions of seven states: Illinois, Indiana, Missouri, Arkansas, Kentucky, Tennessee and Mississippi.
Scientists from the Universidad Nacional Autónoma de México, the U.S. Geological Survey, San Diego State University, AECOM (formerly URS Corporation), and the University of Memphis simulated a set of 20 hypothetical, yet plausible earthquakes located along two currently active faults in the NMSZ. The hypothetical earthquake scenarios range in magnitude from 7.0 to 7.7, and consider various possible epicenters.
”Based on our simulations, were the 1811-1812 earthquakes to repeat today, more than 8 million people living and working near the New Madrid seismic zone would experience potentially damaging ground shaking at modified Mercalli intensities ranging from VI to VIII,” said Leonardo Ramirez-Guzman, lead author of the paper that appears in the July 30 edition of the Bulletin of the Seismological Society of America.
“Strong ground shaking in the greater Memphis metropolitan area could last from 30 seconds to more than 60 seconds, depending on the magnitude and epicenter of a potential seismic event,” said Ramirez-Guzman, a professor at Universidad Nacional Autónoma de México and former USGS contract scientist.
The simulations also demonstrate the importance of fault rupture directivity (seismic energy focused along the direction of faulting), especially when combined with the wave channeling effects of the Reelfoot rift, a buried, northeast-southwest trending geologic valley in the NMSZ. In particular, future large earthquakes on the approximately 80-mile long NMSZ fault show strong shaking at vibration frequencies that pose a risk for mid-rise to high-rise buildings and tall bridges. This fault is thought to be responsible for the December 16, 1811 magnitude 7-7.7 earthquake. Some of the earthquake simulations showed strong shaking focused to the northeast as far as 100-200 miles away near Paducah, Kentucky and Evansville, Indiana, and to the southwest 150 miles toward Little Rock, Arkansas. An example of this earthquake shaking focusing effect can be seen here.
While it’s not possible to know which direction a fault will rupture once an earthquake starts, knowing that there is an increased chance of strong shaking along these geologically-defined corridors is a valuable aid in better characterizing seismic hazard and minimizing earthquake risk.
Earthquakes pose a significant risk to nearly 150 million Americans. The USGS and its partners in the multi-agency National Earthquake Hazard Reduction Program are working to improve earthquake monitoring and reporting capabilities via the USGS Advanced National Seismic System (ANSS). More information about ANSS can be found on the ANSS website.Peak ground-motion variability for a magnitude 7.7 earthquake. Warmer colors indicate stronger ground motions. The stronger ground motions are extended further northeast and southwest caused by the channeling effect of the Reelfoot rift (RFR) The fault is displayed as a thick black continuous straight line, with the epicenter indicated by the triangle. (high resolution image 1.3 MB)
USGS Awards $4 Million to Support Earthquake Early Warning System in California and Pacific Northwest
RESTON, Va.— The U.S. Geological Survey has awarded approximately $4 million this week to four universities – California Institute of Technology, University of California, Berkeley, University of Washington and University of Oregon – to support transitioning the “ShakeAlert” earthquake early warning system toward a production stage. A functioning early warning system can give people a precious few seconds to stop what they are doing and take precautions before the severe shaking waves from an earthquake arrive.
The USGS has additionally spent about $1 million to purchase new sensor equipment for the EEW system. These efforts are possible because of a $5 million increase to the USGS Earthquake Hazards Program for EEW approved by Congress earlier this year.
Under the new cooperative agreements, the USGS and its four university partners will collaborate to improve the ShakeAlert EEW system across the west coast of the United States, and will continue to coordinate across regional centers in southern California, northern California, and the Pacific Northwest. The USGS and its university partners will continue development of scientific algorithms to rapidly detect potentially damaging earthquakes, more thoroughly test the system, and improve its performance. In addition, they will upgrade and construct approximately 150 seismic sensors to improve the speed and reliability of the warnings. They will also develop user training and education, and add additional test users. There are currently 70 organizations that are test users, from sectors such as utilities and transportation, emergency management, state and city governments, and industry.
In 2006 the USGS began funding multi-institutional, collaborative research to start the process of testing earthquake early warning algorithms on real-time seismic networks within the USGS Advanced National Seismic Network. Today, the ShakeAlert demonstration EEW system is issuing alerts to the group of test users across the U.S. west coast in California, Oregon and Washington. In California, this is a joint effort, where state legislation was passed directing the California Office of Emergency Services and USGS to partner on development of an early warning system. The new awards will expand the number of end users and is another step to improve the speed and reliability of ShakeAlert.
During the August 2014 magnitude-6.0 South Napa earthquake, an alert was issued providing a nine-second warning to the City of San Francisco. During a May 3rd, magnitude-3.8 event in Los Angeles, an alert was issued 3.3 seconds after the earthquake began, meaning the warning was sent before the secondary, or “S” waves that have the potential for the strongest shaking, had even reached the Earth’s surface. An electronic alert message that travels at the speed of light can outrun the slower earthquake S-waves, providing valuable seconds of warning. Those few seconds of warning can be enough time to stop a commuter train or an elevator, open fire-house doors, stop delicate surgery and “duck, cover, and hold on.”
The plans for ShakeAlert were evaluated by a scientifically rigorous peer-review process: a panel of experts praised the progress achieved and recommended the proposed improvements. The successes of this effective ShakeAlert collaboration among the USGS and the universities led Congress to appropriate $5 million to the USGS in fiscal year 2015 to accelerate the process of migrating towards a public EEW system. In addition to USGS and university partners, the ShakeAlert system involves the participation of state and local governments, end users, and private-sector partners.
The National Water-Quality Tool offers graphical forms of historical and current information about: water quality in the Nation's rivers and streams (top panel); nutrient loading in the tributaries of the Mississippi River (middle panel); and nitrate loads and yields in coastal rivers (bottom panel). (high resolution image)
A new USGS online tool provides graphical summaries of nutrients and sediment levels in rivers and streams across the Nation.
The online tool can be used to compare recent water-quality conditions to long-term conditions (1993-2014), download water-quality datasets (streamflow, concentrations, and loads), and evaluate nutrient loading to coastal areas and large tributaries throughout the Mississippi River Basin.
"Clean water is essential for public water supplies, fisheries, and recreation. It's vital to our health and economy,” said William Werkheiser, USGS associate director for water. “This annual release of water quality information in graphical form will provide resource managers with timely information on the quality of water in our rivers and streams and how it is changing over time.”
Graphical summaries of nutrients and sediment are available for 106 river and stream sites monitored as part of the USGS National Water-Quality Network for Rivers and Streams.
This tool was developed by the USGS National Water-Quality Assessment Program, which conducts regional and national assessments of the nation’s water quality to provide an understanding of water-quality conditions, whether conditions are getting better or worse over time, and how natural processes and human activities affect those conditions.