John W. Ewert (Former Employee)
Science and Products
Filter Total Items: 34
Summary of the stakeholders workshop to develop a National Volcano Early Warning System (NVEWS) Summary of the stakeholders workshop to develop a National Volcano Early Warning System (NVEWS)
The importance of investing in monitoring, mitigation, and preparedness before natural hazards occur has been amply demonstrated by recent disasters such as the Indian Ocean Tsunami in December 2004 and Hurricane Katrina in August 2005. Playing catch-up with hazardous natural phenomena such as these limits our ability to work with public officials and the public to lessen adverse impacts...
Authors
Marianne Guffanti, William Scott, Carolyn Driedger, John Ewert
An assessment of volcanic threat and monitoring capabilities in the United States: Framework for a National Volcano Early Warning System An assessment of volcanic threat and monitoring capabilities in the United States: Framework for a National Volcano Early Warning System
Executive Summary NVEWS – a National Volcano Early Warning System – is being formulated by the Consortium of U.S. Volcano Observatories (CUSVO) to establish a proactive, fully integrated, national-scale monitoring effort that ensures the most threatening volcanoes in the United States are properly monitored in advance of the onset of unrest and at levels commensurate with the threats...
Authors
John Ewert, Marianne Guffanti, Thomas L. Murray
Bibliography of literature pertaining to Long Valley Caldera and associated volcanic fields Bibliography of literature pertaining to Long Valley Caldera and associated volcanic fields
No abstract available.
Authors
John Ewert, Christopher Harpel, Suzanna Brooks
Bibliography of literature from 1990-1997 pertaining to Holocene and fumarolic Pleistocene volcanoes of Alaska, Canada, and the conterminous United States Bibliography of literature from 1990-1997 pertaining to Holocene and fumarolic Pleistocene volcanoes of Alaska, Canada, and the conterminous United States
The 1980's and 1990's were marked by frequent worldwide destructive volcanic eruptions. Significant loss of life and property during eruptions, and extensive media coverage of volcanic events around the globe have brought volcanic processes and hazards increasingly to the forefront of scientific, governmental, and public attention (e.g., Casadevall, 1994; Pringle, 1994). A result of...
Authors
Christopher Harpel, John Ewert
Mobile Response Team Saves Lives in Volcano Crises Mobile Response Team Saves Lives in Volcano Crises
The world's only volcano crisis response team, organized and operated by the USGS, can be quickly mobilized to assess and monitor hazards at volcanoes threatening to erupt. Since 1986, the team has responded to more than a dozen volcano crises as part of the Volcano Disaster Assistance Program (VDAP), a cooperative effort with the Office of Foreign Disaster Assistance of the U.S. Agency...
Authors
John Ewert, C. Miller, James Hendley, Peter Stauffer
Volcanic hazards and aviation safety Volcanic hazards and aviation safety
An aeronautical chart was developed to determine the relative proximity of volcanoes or ash clouds to the airports and flight corridors that may be affected by volcanic debris. The map aims to inform and increase awareness about the close spatial relationship between volcanoes and aviation operations. It shows the locations of the active volcanoes together with selected aeronautical...
Authors
Thomas Casadevall, Theodore B. Thompson, John Ewert
The USGS/USAID Volcano Disaster Assistance Program; the next five years The USGS/USAID Volcano Disaster Assistance Program; the next five years
No abstract available.
Authors
C. Miller, John Ewert, Andrew B. Lockhart
Monitoring volcanoes; techniques and strategies used by the staff of the Cascades Volcano Observatory, 1980-90 Monitoring volcanoes; techniques and strategies used by the staff of the Cascades Volcano Observatory, 1980-90
No abstract available.
Authors
John Ewert, Donald A. Swanson
A trigonometric method for monitoring ground-tilt changes on composite volcanoes A trigonometric method for monitoring ground-tilt changes on composite volcanoes
No abstract available.
Authors
John Ewert
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 34
Summary of the stakeholders workshop to develop a National Volcano Early Warning System (NVEWS) Summary of the stakeholders workshop to develop a National Volcano Early Warning System (NVEWS)
The importance of investing in monitoring, mitigation, and preparedness before natural hazards occur has been amply demonstrated by recent disasters such as the Indian Ocean Tsunami in December 2004 and Hurricane Katrina in August 2005. Playing catch-up with hazardous natural phenomena such as these limits our ability to work with public officials and the public to lessen adverse impacts...
Authors
Marianne Guffanti, William Scott, Carolyn Driedger, John Ewert
An assessment of volcanic threat and monitoring capabilities in the United States: Framework for a National Volcano Early Warning System An assessment of volcanic threat and monitoring capabilities in the United States: Framework for a National Volcano Early Warning System
Executive Summary NVEWS – a National Volcano Early Warning System – is being formulated by the Consortium of U.S. Volcano Observatories (CUSVO) to establish a proactive, fully integrated, national-scale monitoring effort that ensures the most threatening volcanoes in the United States are properly monitored in advance of the onset of unrest and at levels commensurate with the threats...
Authors
John Ewert, Marianne Guffanti, Thomas L. Murray
Bibliography of literature pertaining to Long Valley Caldera and associated volcanic fields Bibliography of literature pertaining to Long Valley Caldera and associated volcanic fields
No abstract available.
Authors
John Ewert, Christopher Harpel, Suzanna Brooks
Bibliography of literature from 1990-1997 pertaining to Holocene and fumarolic Pleistocene volcanoes of Alaska, Canada, and the conterminous United States Bibliography of literature from 1990-1997 pertaining to Holocene and fumarolic Pleistocene volcanoes of Alaska, Canada, and the conterminous United States
The 1980's and 1990's were marked by frequent worldwide destructive volcanic eruptions. Significant loss of life and property during eruptions, and extensive media coverage of volcanic events around the globe have brought volcanic processes and hazards increasingly to the forefront of scientific, governmental, and public attention (e.g., Casadevall, 1994; Pringle, 1994). A result of...
Authors
Christopher Harpel, John Ewert
Mobile Response Team Saves Lives in Volcano Crises Mobile Response Team Saves Lives in Volcano Crises
The world's only volcano crisis response team, organized and operated by the USGS, can be quickly mobilized to assess and monitor hazards at volcanoes threatening to erupt. Since 1986, the team has responded to more than a dozen volcano crises as part of the Volcano Disaster Assistance Program (VDAP), a cooperative effort with the Office of Foreign Disaster Assistance of the U.S. Agency...
Authors
John Ewert, C. Miller, James Hendley, Peter Stauffer
Volcanic hazards and aviation safety Volcanic hazards and aviation safety
An aeronautical chart was developed to determine the relative proximity of volcanoes or ash clouds to the airports and flight corridors that may be affected by volcanic debris. The map aims to inform and increase awareness about the close spatial relationship between volcanoes and aviation operations. It shows the locations of the active volcanoes together with selected aeronautical...
Authors
Thomas Casadevall, Theodore B. Thompson, John Ewert
The USGS/USAID Volcano Disaster Assistance Program; the next five years The USGS/USAID Volcano Disaster Assistance Program; the next five years
No abstract available.
Authors
C. Miller, John Ewert, Andrew B. Lockhart
Monitoring volcanoes; techniques and strategies used by the staff of the Cascades Volcano Observatory, 1980-90 Monitoring volcanoes; techniques and strategies used by the staff of the Cascades Volcano Observatory, 1980-90
No abstract available.
Authors
John Ewert, Donald A. Swanson
A trigonometric method for monitoring ground-tilt changes on composite volcanoes A trigonometric method for monitoring ground-tilt changes on composite volcanoes
No abstract available.
Authors
John Ewert
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.