Geomagnetism Program
We monitor the Earth's magnetic field. Using ground-based observatories, we provide continuous records of magnetic field variations; disseminate magnetic data to various governmental, academic, and private institutions; and conduct research into the nature of geomagnetic variations for purposes of scientific understanding and hazard mitigation.
Magnetic Disturbance Event Summaries
Summaries of extreme geomagnetic events caused by solar flares.
Risk of Once-Per-Century Geomagnetic Superstorm in NE United States
A new report and map published by the U.S. Geological Survey provides critical insight to electric power grid operators across the northeastern United States in the event of a once-per-century magnetic superstorm.
Auroras and Earthquakes: Strange Companions
In a win-win situation for both seismologists and space physicists, a cheap magnetometer at a seismic station can result in better seismic data for earthquakes and also more geomagnetic data in real time for monitoring space weather.
