A theory claims a disaster will change Earth’s magnetic field.

Chen Thomas’s theory predicts a catastrophe that could destroy major cities in the USA due to changes in Earth’s magnetic field, but scientists find no evidence for this. His book, declassified in 2013, describes apocalyptic events that supposedly occur every 6,500 years. Thomas claims that winds and tsunamis would destroy cities like Los Angeles and San Francisco, but scientists and NASA dispute such claims, emphasizing that changes in the magnetic field do not cause the predicted events.