Select an event to view a summary.
- November 11, 2025
- June 2, 2025
- January 6, 2025
- December 31, 2024
- October 10, 2024
- September 16, 2024
- August 12, 2024
- June 28, 2024
- May 10, 2024
- August 25, 2018
- June 23, 2015
- March 17, 2015
- September 12, 2014
- February 19, 2014
- June 1, 2013
- October 1, 2012
- January 23, 2012
- September 26, 2011
- February 14, 2011
- April 5, 2010
For More Information (non-USGS publications):
- NOAA Space Weather Predictions
- Current Solar images - National Solar Observatory
- Baker, D. N., et al.: Severe Space Weather Events -- Understanding Societal and Economic Impacts, National Academy Press, Washington, DC, 2008.
- SWORM - Space Weather Operations, Research and Mitigation Subcommittee
These USGS publications provide background information.
U.S. Geological Survey Near Real-Time Dst Index U.S. Geological Survey Near Real-Time Dst Index
The operational version of the United States Geological Survey one-minute Dst index (a global geomagnetic disturbance-intensity index for scientific studies and definition of space-weather effects) uses either four- or three-station input (including Honolulu, Hawaii; San Juan, Puerto Rico; Hermanus, South Africa; and Kakioka, Japan; or Honolulu, San Juan and Guam) and a method based on...
Authors
J.L. Gannon, J.J. Love, P.A. Friberg, D.C. Stewart, S.W. Lisowski
Magnetic monitoring of earth and space Magnetic monitoring of earth and space
For centuries, navigators of the world’s oceans have been familiar with an effect of Earth’s magnetic field: It imparts a directional preference to the needle of a compass. Although in some settings magnetic orientation remains important, the modern science of geomagnetismhas emerged from its romantic nautical origins and developed into a subject of great depth and diversity. The...
Authors
Jeffrey Love
Select an event to view a summary.
- November 11, 2025
- June 2, 2025
- January 6, 2025
- December 31, 2024
- October 10, 2024
- September 16, 2024
- August 12, 2024
- June 28, 2024
- May 10, 2024
- August 25, 2018
- June 23, 2015
- March 17, 2015
- September 12, 2014
- February 19, 2014
- June 1, 2013
- October 1, 2012
- January 23, 2012
- September 26, 2011
- February 14, 2011
- April 5, 2010
For More Information (non-USGS publications):
- NOAA Space Weather Predictions
- Current Solar images - National Solar Observatory
- Baker, D. N., et al.: Severe Space Weather Events -- Understanding Societal and Economic Impacts, National Academy Press, Washington, DC, 2008.
- SWORM - Space Weather Operations, Research and Mitigation Subcommittee
These USGS publications provide background information.
U.S. Geological Survey Near Real-Time Dst Index U.S. Geological Survey Near Real-Time Dst Index
The operational version of the United States Geological Survey one-minute Dst index (a global geomagnetic disturbance-intensity index for scientific studies and definition of space-weather effects) uses either four- or three-station input (including Honolulu, Hawaii; San Juan, Puerto Rico; Hermanus, South Africa; and Kakioka, Japan; or Honolulu, San Juan and Guam) and a method based on...
Authors
J.L. Gannon, J.J. Love, P.A. Friberg, D.C. Stewart, S.W. Lisowski
Magnetic monitoring of earth and space Magnetic monitoring of earth and space
For centuries, navigators of the world’s oceans have been familiar with an effect of Earth’s magnetic field: It imparts a directional preference to the needle of a compass. Although in some settings magnetic orientation remains important, the modern science of geomagnetismhas emerged from its romantic nautical origins and developed into a subject of great depth and diversity. The...
Authors
Jeffrey Love