Hype and Spin
For the first time, scientists have been able to use satellite data to detect the changes in Earth's surface caused by a massive earthquake.
Actually, for years radar interferometry has shown precursor, syn-tectonic, and post-main-shock deformation of the Earth's surface. There is nothing new about "satellite data"
What IS new is using precise orbital determination to detect changes in the high-order gravotational field of the Earth.
(Length-of day changes associated with major quakes have been noted for many decades, too)