NASA scientists using data from the Indonesian earthquake calculated it affected Earths rotation, decreased the length of day, slightly changed the planets shape, and shifted the North Pole by centimeters. The earthquake that created the huge tsunami also changed the Earths rotation.
Dr. Benjamin Fong Chao, of NASAs Goddard Space Flight Center, Greenbelt, Md. and Dr. Richard Gross of NASAs Jet Propulsion Laboratory, Pasadena, Calif. said all earthquakes have some affect on Earths rotation. Its just they are usually barely noticeable. "Any worldly event that involves the movement of mass affects the Earths rotation, from seasonal weather down to driving a car," Chao said.
Chao and Gross have been routinely calculating earthquakes effects in changing the Earths rotation in both length-of-day as well as changes in Earths gravitational field. They also study changes in polar motion that is shifting the North Pole. The "mean North pole" was shifted by about 2.5 centimeters (1 inch) in the direction of 145º East Longitude. This shift east is continuing a long-term seismic trend identified in previous studies.
Rob Gutro | EurekAlert!
Volcanoes and glaciers combine as powerful methane producers
20.11.2018 | Lancaster University
Massive impact crater from a kilometer-wide iron meteorite discovered in Greenland
15.11.2018 | Faculty of Science - University of Copenhagen
Max Planck researchers revel the nano-structure of molecular trains and the reason for smooth transport in cellular antennas.
Moving around, sensing the extracellular environment, and signaling to other cells are important for a cell to function properly. Responsible for those tasks...
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
19.11.2018 | Event News
09.11.2018 | Event News
06.11.2018 | Event News
20.11.2018 | Life Sciences
20.11.2018 | Life Sciences
20.11.2018 | Physics and Astronomy