Picking up bad vibes

摘要

British and Russian scientists are planning a satellite system that will monitor seismic activity from space in the hope of predicting the occurrence of earthquakes and volcanic eruptions. The Twinsat project will put one micro-sized and one nano-sized satellite into low Earth orbit some 400km apart. They will work in unison to collect and interpret electromagnetic signatures from the ground. Geologists know that, as stress builds up in the earth prior to an earthquake, subtle electromagnetic signals are released.