A mysterious anomaly under Africa is radically weakening Earth’s magnetic field

The region that concerns scientists the most at the moment is called the South Atlantic Anomaly – a huge expanse of the field stretching from Chile to Zimbabwe. The field is so weak within the anomaly that it’s hazardous for Earth’s satellites to enter it, because the additional radiation it’s letting through could disrupt their electronics.

Source: A mysterious anomaly under Africa is radically weakening Earth’s magnetic field