The sun and the moon can cause earthquakes

Scientists found that the attraction of the sun and the moon to the Earth could cause earthquakes.

San Andreas is a natural boundary between the Pacific and North American tectonic plates. With a length of 1,280 km, it runs from the southern desert in California, USA to the north of the state. San Andreas milling line once created a terrible earthquake in the city of San Francisco in 1906 that killed more than 3,000 people. This is the worst natural disaster in California state history.

Daily Mail said US earthquake experts studied documents about more than 2,000 aftershocks in the city of Parkfield, California and surrounding areas for 8 years. They compare the data of aftershocks with the motion of the moon and the sun.

Artwork: mapsworldwide.com

In an article in Nature, the team declared the gravitational pull from the moon and the sun causing small tremors at a depth of about 24 km underground.

Dr. Roland Burgmann, professor of earth science and planets at the University of California (USA), said: "We see daily tides related to earthquakes."

The tide is the phenomenon of sea and river water rising and falling daily. The change in gravitational force from the moon, the sun and other bodies at any point on the earth creates tidal and ebb tide at certain times. The tide is maximized when both the moon and the sun lie on one side of the Earth.

A spokesman for the research team said: "The gravity of the moon and the sun on the earth is relatively weak. Therefore the tidal phenomenon does not directly cause earthquakes, but they can cause vibrations. seismic underground, these vibrations increase the likelihood of earthquakes in the upper fault line.

Earthquakes often occur by the displacement of stratigraphic plates, especially when two plates collide. It is currently predicted that earthquakes are likely to occur by calculating stresses on the milling line. Scientists believe that the Burgmann team's research will help them find new ways to predict large earthquakes.