Share

First State Geology Newsletter Signup

First State Geology has been the newsletter of DGS for over 25 years.

Click here to signup!

Feed aggregator

Blairs Pond to close Oct 31 for parking lot improvements

DNREC News - Wed, 10/29/2014 - 15:20
DOVER (Oct. 29, 2014) – Access to the parking lot and boat ramp at Blairs Pond near Milford will be closed Friday, Oct. 31 to allow contractors to complete parking lot improvements and upgrades, DNREC’s Division of Fish & Wildlife announced today.

Two Years After Sandy, Most Of New Jersey’s Boardwalks Rebuilt

FEMA Press Releases - Wed, 10/29/2014 - 11:28

EATONTOWN, N.J. – Many of the boardwalks in New Jersey that were damaged or destroyed during Hurricane Sandy have been successfully rebuilt in the two years that have passed since the storm.

Language English
Categories: Federal News

Subsidence in Southern Colorado Linked to Gas Production and Earthquakes

USGS Newsroom Technical - Wed, 10/29/2014 - 11:00
Summary: New radar observations show significant ground subsidence near the Colorado-New Mexico border in the area where a magnitude 5.3 earthquake struck in August, 2011. The analysis supports the idea that earthquakes in this region may be triggered by waste-water disposal.

Contact Information:

Heidi  Koontz ( Phone: 303-202-4763 );



New radar observations show significant ground subsidence near the Colorado-New Mexico border in the area where a magnitude 5.3 earthquake struck in August, 2011. The analysis supports the idea that earthquakes in this region may be triggered by waste-water disposal.

In a recent study published in the American Geophysical Union’s Journal of Geophysical Research, scientists from the U.S. Geological Survey used satellite radar observations (interferometric synthetic aperture radar, or InSAR) to show that there is significant vertical deformation, or ground subsidence, in the Raton Basin, likely caused by methane and water withdrawal from coal beds. Also, there is no evidence for shallow volcanic activity throughout the observation period.

Alternatively, the August, 2011, earthquake occurred close to several wastewater disposal wells during times when injection was occurring. Aspects of the earthquake rupture, including the location of slip, the style of faulting and the statistics of the 2011 earthquake aftershock sequence, suggest that the earthquake was likely caused by a slip on a naturally stressed fault that was triggered by the fluid disposal.

The InSAR analysis provides a new method of looking at earthquake location and dimensions, allowing USGS and other scientists to further explore relationships between fluid extraction and injection, induced seismicity, local geology and hydrological systems. The satellite data also provide a check on the seismological observations that are most commonly used to analyze induced seismicity, and allow scientists to explore deformation that does not produce seismic signals.

Subsidence in Southern Colorado Linked to Gas Production and Earthquakes

USGS Newsroom Technical - Wed, 10/29/2014 - 11:00
Summary: New radar observations show significant ground subsidence near the Colorado-New Mexico border in the area where a magnitude 5.3 earthquake struck in August, 2011. The analysis supports the idea that earthquakes in this region may be triggered by waste-water disposal.

Contact Information:

Heidi  Koontz ( Phone: 303-202-4763 );



New radar observations show significant ground subsidence near the Colorado-New Mexico border in the area where a magnitude 5.3 earthquake struck in August, 2011. The analysis supports the idea that earthquakes in this region may be triggered by waste-water disposal.

In a recent study published in the American Geophysical Union’s Journal of Geophysical Research, scientists from the U.S. Geological Survey used satellite radar observations (interferometric synthetic aperture radar, or InSAR) to show that there is significant vertical deformation, or ground subsidence, in the Raton Basin, likely caused by methane and water withdrawal from coal beds. Also, there is no evidence for shallow volcanic activity throughout the observation period.

Alternatively, the August, 2011, earthquake occurred close to several wastewater disposal wells during times when injection was occurring. Aspects of the earthquake rupture, including the location of slip, the style of faulting and the statistics of the 2011 earthquake aftershock sequence, suggest that the earthquake was likely caused by a slip on a naturally stressed fault that was triggered by the fluid disposal.

The InSAR analysis provides a new method of looking at earthquake location and dimensions, allowing USGS and other scientists to further explore relationships between fluid extraction and injection, induced seismicity, local geology and hydrological systems. The satellite data also provide a check on the seismological observations that are most commonly used to analyze induced seismicity, and allow scientists to explore deformation that does not produce seismic signals.

DNREC extends comment period on Green Recovery Technologies Coastal Zone permit application

DNREC News - Wed, 10/29/2014 - 10:42
DOVER (Oct. 29, 2014) – In response to numerous requests from community associations, environmental advocates and members of the public at the Green Recovery Technologies’ Coastal Zone permit hearing held Oct. 22, DNREC has extended the public comment period on the company’s permit application for two weeks.

Division of Fish and Wildlife designates Nov 1 as special deer hunting day for youth and disabled hunters

DNREC News - Wed, 10/29/2014 - 08:30
DOVER (Oct. 24, 2014) – To promote the sport and provide additional opportunities for hunting in Delaware, DNREC’s Division of Fish & Wildlife has designated Saturday, Nov. 1 as a special deer hunting day for youth hunters ages 10 through 15 and non-ambulatory disabled hunters on both public and private lands statewide.

State, Federal & Tribal Recovery Partners Collaborate & Coordinate on New Mexico Federal Disaster Declaration

FEMA Press Releases - Tue, 10/28/2014 - 15:03

SANTA FE – Getting disaster aid quickly into the hands of eligible state agencies, tribal governments, certain nonprofits, community ditch associations and other local government entities affected by the July 27–August 5, 2014 flooding is a collaborative goal of the New Mexico Department of Homeland Security and Emergency Management (NM DHSEM) and the Federal Emergency Management Agency (FEMA).

Language English
Categories: Federal News

Federal Disaster Assistance Includes Right of Appeal

FEMA Press Releases - Tue, 10/28/2014 - 15:03

WARREN, Mich. – Michigan residents who receive a letter from the Federal Emergency Management Agency (FEMA) saying they do not qualify for disaster assistance have the right to appeal.

An applicant has 60 days from the date of the determination letter to appeal the FEMA decision.

“Sometimes the letter only means that FEMA needs more information,” said Michigan State Police Capt. Chris A. Kelenske, State Coordinating Officer and Deputy State Director of Emergency Management and Homeland Security. “Applicants should read the entire letter for clarification.”

Language English
Categories: Federal News

Garrisons Lake north parking lot and footbridge to close Nov 3 through Dec 31 for upgrades to dam

DNREC News - Tue, 10/28/2014 - 15:02
DOVER (Oct. 28, 2014) – Access to the north parking lot and fishing footbridge at Garrisons Lake near Smyrna will be closed from Monday, Nov. 3 through Wednesday, Dec. 31 to allow contractors to perform construction work along the dam, DNREC’s Division of Fish & Wildlife announced today.

Flood Risk Open House to View Maps in Aransas and San Patricio, TX

FEMA Press Releases - Tue, 10/28/2014 - 09:36

DENTON, Texas –Homeowners, renters and business owners in the Texas counties of Aransas and San Patricio are encouraged to look over newly released preliminary flood maps in order to determine their flood risks and make informed decisions.

Language English
Categories: Federal News

Flood Risk Open House to View Maps in Aransas and San Patricio, TX

FEMA Press Releases - Tue, 10/28/2014 - 09:36

DENTON, Texas –Homeowners, renters and business owners in the Texas counties of Aransas and San Patricio are encouraged to look over newly released preliminary flood maps in order to determine their flood risks and make informed decisions.

Language English
Categories: Federal News

Recycling Public Advisory Council to meet Wednesday, Oct. 29 in Dover

DNREC News - Mon, 10/27/2014 - 16:52
DOVER (Oct. 27, 2014) – The Recycling Public Advisory Council (RPAC) will meet from 1:30 - 3:30 p.m. Wednesday, Oct. 29., at the Tatnall Building, 150 Martin Luther King Jr. Boulevard, Dover, DE 19901.

Cape Henlopen Fishing Pier closed for safety reasons

DNREC News - Mon, 10/27/2014 - 12:55
LEWES (Oct. 27, 2014) – DNREC Division of Parks & Recreation Director Ray Bivens has ordered the immediate closure of the aging Cape Henlopen Fishing Pier as a safety measure

DNREC to hold workshops Oct. 31 and Nov. 1 on updates to Regulations Governing Beach Protection and Use of Beaches

DNREC News - Mon, 10/27/2014 - 11:00
DOVER (Oct. 10, 2014) – DNREC’s Division of Watershed Stewardship’s Shoreline & Waterway Management Section will hold two public workshops addressing the history of the Delaware’s Regulations Governing Beach Protection and the Use of Beaches, and possible changes to the regulations.

New Maine Maps Feature National Scenic Trails

USGS Newsroom - Mon, 10/27/2014 - 10:00
Summary: Newly released US Topo maps for Maine now feature segments of the Appalachian National Scenic Trail (A.T.)

Contact Information:

Mark Newell, APR ( Phone: 573-308-3850 ); Matt Robinson ( Phone: 304-535-4010 ); Larry Moore ( Phone: 303-202-4019 );



Newly released US Topo maps for Maine now feature segments of the Appalachian National Scenic Trail (A.T.).  Several of the 715 new US Topo quadrangles for the state now display parts of the A.T. along with other improved data layers. 

“Located within a day’s drive of 2/3rds of the U.S. population and open year-around to all visitors, the Appalachian Trail is America’s most readily accessible long-distance footpath,” said Matt Robinson, National Park Service GIS Specialist for the A.T. “Having its route accurately depicted on these new US Topo maps just makes it even more accessible to all who wish to explore this great resource.” 

The Appalachian National Scenic Trail is a public footpath that traverses more than 2,100 miles of the Appalachian mountains and valleys between Katahdin, Maine (northern terminus), and Springer Mountain, Georgia (southern terminus). It winds through scenic, wooded, pastoral, wild, and culturally resonant lands along this ancient mountain range. With more than 99% of the A.T.’s corridor on Federal or State land, it is the longest continuously marked, maintained, and publicly protected trail in the United States.

The USGS partnered with the National Park Service and the Appalachian Trail Conservancy to incorporate the trail data onto the Maine US Topo maps. This NST joins the Ice Age National Scenic Trail, the Pacific Northwest National Scenic Trail the North Country National Scenic Trail and the Pacific Crest National Scenic Trail as being featured on the new US Topo quads. The USGS hopes to eventually include all National Scenic Trails in The National Map products.

These new maps replace the first edition US Topo maps for Maine and are available for free download from The National Map and the USGS Map Locator & Downloader website.

To compare change over time, scans of legacy USGS topo maps, some dating back to the late 1800s, can be downloaded from the USGS Historical Topographic Map Collection

To download US Topo maps: http://nationalmap.gov/ustopo/

The National Trails System was established by Act of Congress in 1968. The Act grants the Secretary of Interior and the Secretary of Agriculture authority over the National Trails System. The Act defines four types of trails. Two of these types, the National Historic Trails and National Scenic Trails, can only be designated by Act of Congress. National scenic trails are extended trails located as to provide for maximum outdoor recreation potential and for the conservation and enjoyment of nationally significant scenic, historic, natural, and cultural qualities of the area through which such trails may pass.

There are 11 National Scenic Trails:
  • Appalachian National Scenic Trail
  • Pacific Crest National Scenic Trail
  • Continental Divide National Scenic Trail
  • North Country National Scenic Trail
  • Ice Age National Scenic Trail
  • Potomac Heritage National Scenic Trail
  • Natchez Trace National Scenic Trail
  • Florida National Scenic Trail
  • Arizona National Scenic Trail
  • New England National Scenic Trail
  • Pacific Northwest National Scenic Trail
(high resolution image) 1951 USGS legacy topographic map of the Monson West (Maine) quadrangle, 1:62,500 scale. (high resolution image)
2014 US Topo map of Maine, Monson West quadrangle with orthoimage layer turned on. (high resolution image)

New Maine Maps Feature National Scenic Trails

USGS Newsroom - Mon, 10/27/2014 - 10:00
Summary: Newly released US Topo maps for Maine now feature segments of the Appalachian National Scenic Trail (A.T.)

Contact Information:

Mark Newell, APR ( Phone: 573-308-3850 ); Matt Robinson ( Phone: 304-535-4010 ); Larry Moore ( Phone: 303-202-4019 );



Newly released US Topo maps for Maine now feature segments of the Appalachian National Scenic Trail (A.T.).  Several of the 715 new US Topo quadrangles for the state now display parts of the A.T. along with other improved data layers. 

“Located within a day’s drive of 2/3rds of the U.S. population and open year-around to all visitors, the Appalachian Trail is America’s most readily accessible long-distance footpath,” said Matt Robinson, National Park Service GIS Specialist for the A.T. “Having its route accurately depicted on these new US Topo maps just makes it even more accessible to all who wish to explore this great resource.” 

The Appalachian National Scenic Trail is a public footpath that traverses more than 2,100 miles of the Appalachian mountains and valleys between Katahdin, Maine (northern terminus), and Springer Mountain, Georgia (southern terminus). It winds through scenic, wooded, pastoral, wild, and culturally resonant lands along this ancient mountain range. With more than 99% of the A.T.’s corridor on Federal or State land, it is the longest continuously marked, maintained, and publicly protected trail in the United States.

The USGS partnered with the National Park Service and the Appalachian Trail Conservancy to incorporate the trail data onto the Maine US Topo maps. This NST joins the Ice Age National Scenic Trail, the Pacific Northwest National Scenic Trail the North Country National Scenic Trail and the Pacific Crest National Scenic Trail as being featured on the new US Topo quads. The USGS hopes to eventually include all National Scenic Trails in The National Map products.

These new maps replace the first edition US Topo maps for Maine and are available for free download from The National Map and the USGS Map Locator & Downloader website.

To compare change over time, scans of legacy USGS topo maps, some dating back to the late 1800s, can be downloaded from the USGS Historical Topographic Map Collection

To download US Topo maps: http://nationalmap.gov/ustopo/

The National Trails System was established by Act of Congress in 1968. The Act grants the Secretary of Interior and the Secretary of Agriculture authority over the National Trails System. The Act defines four types of trails. Two of these types, the National Historic Trails and National Scenic Trails, can only be designated by Act of Congress. National scenic trails are extended trails located as to provide for maximum outdoor recreation potential and for the conservation and enjoyment of nationally significant scenic, historic, natural, and cultural qualities of the area through which such trails may pass.

There are 11 National Scenic Trails:
  • Appalachian National Scenic Trail
  • Pacific Crest National Scenic Trail
  • Continental Divide National Scenic Trail
  • North Country National Scenic Trail
  • Ice Age National Scenic Trail
  • Potomac Heritage National Scenic Trail
  • Natchez Trace National Scenic Trail
  • Florida National Scenic Trail
  • Arizona National Scenic Trail
  • New England National Scenic Trail
  • Pacific Northwest National Scenic Trail
(high resolution image) 1951 USGS legacy topographic map of the Monson West (Maine) quadrangle, 1:62,500 scale. (high resolution image)
2014 US Topo map of Maine, Monson West quadrangle with orthoimage layer turned on. (high resolution image)

After Assault by Sandy, FEMA, State, Fund Model Mitigation Project for Passaic Valley Sewerage Authority

FEMA Press Releases - Mon, 10/27/2014 - 08:44

In October of 2012, storm surges caused by Hurricane Sandy rose from the waters of Newark Bay and engulfed the 152-acre Passaic Valley Sewerage Commission’s wastewater treatment facility.

Language English
Categories: Federal News

After Assault by Sandy, FEMA, State, Fund Model Mitigation Project for Passaic Valley Sewerage Authority

FEMA Press Releases - Mon, 10/27/2014 - 08:44

In October of 2012, storm surges caused by Hurricane Sandy rose from the waters of Newark Bay and engulfed the 152-acre Passaic Valley Sewerage Commission’s wastewater treatment facility.

Language English
Categories: Federal News

More New Mexico Counties and a Pueblo added to Oct. 6 Federal Disaster Declaration for Summer Floods

FEMA Press Releases - Fri, 10/24/2014 - 18:02

SANTA FE – An amendment to the October 6 major disaster declaration for New Mexico adds public assistance funding eligibility to three additional counties and a pueblo following the severe storms and flooding that impacted the state from July 27 – August 5.

Language English
Categories: Federal News

More New Mexico Counties and a Pueblo added to Oct. 6 Federal Disaster Declaration for Summer Floods

FEMA Press Releases - Fri, 10/24/2014 - 18:02

SANTA FE – An amendment to the October 6 major disaster declaration for New Mexico adds public assistance funding eligibility to three additional counties and a pueblo following the severe storms and flooding that impacted the state from July 27 – August 5.

Language English
Categories: Federal News