Environment Life

Ionosphere disturbances may trigger earthquakes, study finds

Fahad Redha

March 11, 2026
3 min read

Ionosphere disturbances may trigger earthquakes, study finds

Researchers at Kyoto University have created a theoretical model to examine whether disturbances in the ionosphere such as solar storms may be connected to earthquakes. The findings were published in International Journal of Plasma Environmental Science and Technology.

The scientists set out to study whether ionosphere disturbances could cause electrostatic forces deep within the planet’s crust, which under certain conditions, may play a part in causing large earthquakes.

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The research does not forecast future earthquakes but rather, outlines a possible physical mechanism that shows how a change in particles in the upper atmosphere, caused by intense activity from the sun such as solar storms and flares, could interact with an already weakened crust and affect the development of fractures.

In their model, cracked areas of the crust are believed to contain water at very high temperatures and pressures. Electrically, they could act as capacitors, being coupled to both the surface of the Earth and the ionosphere, causing a vast electrostatic system that connects the ground to the upper atmosphere.

When there is a surge in solar activity, electron density in the upper atmosphere can significantly rise, creating a negatively charged layer in the lower ionosphere. That charge could cause an intense electrical field inside microscopic voids within fractured rocks, resulting in pressures that could reach similar levels to tidal or gravitational stresses that are known to have an affect on fault stability.

Unusual ionospheric behaviour has often been detected ahead of a powerful earthquake. Observers noted spikes in electron density, falls in ionospheric altitude, and slower propagation of medium-scale travelling ionospheric disturbances. Scientists previously saw these as effects caused by stress building up within the crest but this new research offers a new perspective.

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