Earthquakes, the impact of a tsunami on the ionosphere, with the force of the solar explosion

Key points Researchers studied the effects of earthquakes and tsunamis on the ionosphere. The effects are similar to those in a strong solar flare.

Researchers recently discovered that like solar flares and extreme space weather, earthquakes and tsunamis can also disrupt the Earth’s ionizing atmosphere. According to the researchers, the effects of these earth-based natural disasters on the ionosphere could interfere with radiocommunications and the displacement of GPS signals.

Researchers from the University of Atmospheric Research Foundation in Boulder, Colorado, conducted a study on the relationship between ionosphere, earthquake, and tsunami. It was published in Space Weather magazine.

For the study, researchers focused on a strong earthquake in 2011 off the coast of Japan. The magnitude 9.0 earthquake caused a massive tsunami that affected a total area of ​​561 square kilometers in the country.

According to the researchers, earthquakes and tsunamis from various sources such as islands and hills were reflected in the ionosphere, which is part of the ionosphere ionized by solar and cosmic radiation.

“On March 11, 2011, a 9.0 magnitude earthquake occurred near the eastern coast of Honshu, Japan, and a brutal tsunami was unleashed in addition to the unprecedented plasma ripples in the space-to-air interaction zone,” the researchers wrote in their study summary.

The earthquake and tsunami reflection created ripples on the ionosphere. As shown in their findings, the ionospheric turbulence over Japan during the earthquake in 2011 lasted for approximately 46 hours.

During this period, disturbances in satellite signals were reported over Japan. Some GPS devices also failed to operate properly during the accident.

As the researchers note, the effects of the earthquake and tsunami on the ionosphere were very similar to how the Earth interacted after a direct hit from a solar flare. He notes that in addition to space weather, natural disasters on Earth also have serious impacts on satellite communications and GPS signals.

For researchers, follow-up studies should be conducted on the effects of natural phenomena on the ionosphere.

They stated that “these weather weather phenomena have a negative impact on the global navigation system and its applications.” Therefore, understanding how natural hazards affect the upper atmosphere and causing differences in the space environment around Earth is crucial. “

The “triple catastrophe” that struck the earthquake, tsunami and collapse of the Fukushima nuclear power plant in March 2011 killed nearly 16,000 people. Photo: AFP / Noboru Hashimoto

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