LIGO can detect gravitational waves caused by celestial events millions of kilometres away. But quakes caused by events a few kilometres under the earth can mess up the results. Read on to see how scientists overcame the problem.
The disturbances in the horizontal component of the earth’s magnetic field are not the same in different magnetic field stations. Researchers from the University of Kerala suggest that monitoring the correlations in the ratio of signals from magnetic field stations can help forecast earthquakes.