Mapping a Magnetic Superstorm

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Beware ‘unusual frequencies (harmonics)’.

Spaceweather.com

June 13, 2022: Researchers have mapped the best and worst places to be in the USA during a severe geomagnetic storm. For residents of some big cities, the news is not good.

“Resistive structures in the crust and mantle of the Earth make cities along the east coast of the USA especially vulnerable to geomagnetic storms,” says Jeffrey Love of the US Geological Survey (USGS), who led the study. “The hazards are greatest for power systems serving Boston, New York, Philadelphia, Baltimore, and Washington, DC, – a megalopolis of over 50 million people.”

Above: If you live near an orange dot you might be in trouble. Peak geoelectric field amplitudes during the March 13, 1989, geomagnetic storm, from Love et al (2022).

These conclusions are based on a new study of the biggest geomagnetic storm of the Space Age–the Great Québec Blackout. On March 13, 1989, two major CMEs hammered…

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June 13, 2022 at 03:23AM

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