Geomagnetism
Geomagnetism
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. Explore and search below.
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Severe Magnetic Storm -December 31, 2024
December 31, 2024: 11:18
Severe Magnetic Storm -January 6, 2025
January 6, 2025: 16:00 Eastern Time
Severe Magnetic Storm -June 2, 2025
June 2, 2025: 12:00 Eastern Time
Severe Magnetic Storm (ongoing)
October 10, 2024: 22:00 Eastern Time
September 17, 2024 Magnetic Disturbance
Space Weather Events of September 16, 2024 - September 17, 2024 22:00 Eastern time
Auroras and Earthquakes: Strange Companions
Release Date: JULY 6, 2020 In 1722 and 1723 a London clockmaker, George Graham, observed daily and consistent variations on one of his instruments, a “Needle upon the Pin” (a compass), for which he had no explanation. Swedish scientists obtained some of Graham’s instruments to record what is now known to be the variations in Earth’s magnetic field. In 1741, they noticed a significant deflection of...
August 25, 2018 Magnetic Disturbance
Space Weather Events of August 25, 2018
June 23, 2015 Magnetic Disturbance
Space Weather Events of June 23, 2015
March 17, 2015 Magnetic Disturbance
Space Weather Events of March 17, 2015
September 12, 2014 Magnetic Disturbance
Space Weather Events of September 12, 2014
February 19, 2014 Magnetic Disturbance
Space Weather Events of February 19, 2014
June 1, 2013 Magnetic Disturbance
Space Weather Events of June 1, 2013