Earthquakes don't just destroy buildings and cause tsunamis.In the process, seismic waves pass through
Seismologists have developed methods for obtaining wavesignals from networks of seismometers on the Earth's surface and reverse engineering the properties and characteristics of the environment through which they pass. This process is known as seismic tomography. In other words, it is a method of imaging the interior of the Earth using seismic waves resulting from earthquakes or explosions.
For decades, seismic tomographywas based on the ray theory, and seismic waves were considered as light rays. To improve the resolution of modern seismic tomographic models, the scientists took into account the complexity of wave propagation using numerical simulations.
In addition to radial anisotropyIn the process of developing a new model, experts took into account measures of energy loss during the propagation of seismic waves within the Earth. They used data from 300 earthquakes to build new global full-wave inversion models. New data will make it possible to make a global “MRI” of the Earth and see what is hidden in its depths.
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