Seismotectonic background and fault model for the 2023 Türkiye Kahramanmaraş earthquake doublet. Credit: Communications Earth & Environment (2025). DOI: 10.1038/s43247-025-02205-4 ...

"The combination of 3D fault geometry and 3D Earth structure model makes our simulations much more realistic and explains a wide set of observations very well," Mai said.

Earth's outer core has a radius of around 2,160 miles (3,480km) - making it slightly larger than Mars.