If a magnetar passed Earth at half the distance to the Moon, what effect would its field be powerful enough to cause planet-wide?

Answer

Erase the magnetic stripes on every credit card

A hypothetical close pass illustrates the field's destructive potential; its energy density is so high that it could erase magnetic stripes on all global credit cards, demonstrating its power far beyond the atomic disruption range.

If a magnetar passed Earth at half the distance to the Moon, what effect would its field be powerful enough to cause planet-wide?

#Videos

What Would Happen If You Fell Into A Magnetar? | Random Thursday

What if a Magnetar Came Close to Earth? - YouTube

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