Gravity signals rapidly show true size of giant quakes - changes in gravity can give more rapid information, and accurately estimate the magnitude of earthquake tremors in minutes, not hours, according to new research published in journal Science.

See the source article by following the link below:
Gravity signals rapidly show true size of giant quakes - changes in gravity can give more rapid information, and accurately estimate the magnitude of earthquake tremors in minutes, not hours, according to new research published in journal Science.