Name Change For Tax Return Canada

LAND CHANGE IN NEGATIVE More and more '

The rotation axis has moved by 2.7 milliseconds of arc, equal to 8 cm.

The earthquake in Chile has shortened the length of day and moved the Earth's axis
The Earth moves faster and the days are shortened 1.26 millionths of a second
The rotation axis has moved by 2.7 milliseconds of arc, equal to 8 cm

(NASA)
LONDON - As with all large earthquakes, including the earthquake of 8 , 8 on the Richter scale on Saturday off the coast of Chile the Earth's axis has shifted and changed the length of the day. The difference was calculated using a complex mathematical model by Richard Gross of the Jet Propulsion Laboratory (JPL) in Pasadena, California.

shortest day - the second big lump of Nazca, South American and under subducts that produced the Chilean earthquake, has moved the masses to the interior of the Earth. As is the case when the skaters, durante la trottola, portano le braccia al petto e aumentano la velocità di rotazione, così capita al nostro pianeta. Masse più vicine al centro della Terra determinano una maggiore velocità di rotazione e quindi un accorciamento della durata del giorno. Per la precisione, hanno calcolato Gross e i suoi colleghi del Jpl, il giorno si è accorciato di 1,26 microsecondi, ossia 1,26 milionesimi di secondo. Una differenza molto piccola, ma permanente, che è addirittura sotto la soglia dell'osservazione diretta strumentale, che è di 5 microsecondi.

ASSE DI ROTAZIONE - Il terremoto ha avuto conseguenze anche sull'asse di rotazione che, secondo Gross, si è spostato di 2,7 millisecondi di arco, pari a 8 centimetri. Enzo Boschi, president of the National Institute of Geophysics and Volcanology, the Earth's axis is spot less than 12 centimeters.

DIFFERENCE - The Sumatra earthquake of December 26, 2004, which was stronger (9.1 Richter scale) led to major changes: a decrease in day length of 6.8 microseconds and a shift of the Earth 2 , 32 milliseconds of arc, approximately 7 cm. The difference of displacement of the Earth than that of the Chilean earthquake Indonesia is due to two factors: the earthquake in Indonesia was almost to the equator, and as far away as possible from the center of the Earth (the planet is not perfectly spherical: is flattened at the poles and bulging at the equator) and then the masses are not moved so much towards the center. In addition, the angle of the fault that subducts in South America is greater than that of the Indo-Australian plate under the subducts Asia, and also why the Asian crustal masses have sunk less and have produced a smaller shift of .

EFFECTS - These changes, however, are too small to affect in any way on human life or the physical environment of the Earth. Woods adds that for now the data presented are estimates and "we are waiting for experimental tests to be carried out in the center of the Italian Space Agency in Matera.

Paul Virtue

ARTICLE SOURCE: YouTube