3 ms·

high altitude nuclear tests have created artificial electromagnetic radiation belts (similar to the Van Allen belt); https://en.wikipedia.org/wiki/List_of_arti

• mighty_atomic_c 10y ago
  Those also damage electronics far below. In fact, that is the characteristic way of using high altitude nuclear weapons to damage communications over a continental region. But far enough away it would push a little solar wind around, for a short time.