For example a short event in US with duration 2 hours–4 days, depending on location, affecting 55 million people.
Deaths: Almost 100
https://en.wikipedia.org/wiki/Northeast_blackout_of_2003
The Economic Impacts of the August 2003 Blackout
"Based on the much-studied 1977 New York City blackout. ICF Consulting estimated the total economic cost of the August 2003 blackout to be between $7 and $10 billion"
https://www.nrc.gov/docs/ml1113/ml111300584.pdf
Short blackout: 2025 Iberian Peninsula blackout
"The employers' organization CEOE estimated that the outage resulted in economic losses valued at €1.6 billion."
https://en.wikipedia.org/wiki/2025_Iberian_Peninsula_blackou...