This map illustrates the potential power grid disturbances caused by a severe geomagnetic storm in North America, based on the National Research Council (NRC) report, Severe Space Weather Events (2008). Highlighted areas (shaded regions) indicate regions at high risk of power system collapse, impacting more than 130 million people. The dot sizes reflect the risk level for individual power node failures, with the Eastern U.S. and parts of the Northwest most vulnerable. This visualization underscores the need for improving grid resilience and preparedness against geomagnetic disturbances to mitigate widespread power outages.

Leave a Reply