• Preseismic electromagnetic signals recorded before Nepal earthquake on November 3, 2023

    Electromagnetic signals lasting up to 70 seconds were detected before an M6.4 earthquake struck western Nepal on November 3, 2023. Researchers operating magnetotelluric stations in the Ganga Basin have described this as an important observation in earthquake precursor studies.

  • Magnetic North Pole shift brings updates to World Magnetic Model 2025

    The World Magnetic Model (WMM) 2025 was released by the NCEI and the BGS on Tuesday, December 17, 2024. The release forecasts changes in Earth’s magnetic field for the next 5 years as the magnetic north pole keeps moving faster leading to important improvements in global navigation systems.

  • Variations in Length of Day linked to core movements

    Movements within Earth’s molten outer core are causing millisecond-scale changes in the length of a day (LOD), according to researchers from the Swiss Federal Institute of Technology Zurich (ETH Zurich). Their findings, reported on November 26, 2024, are based on historical eclipse data analyzed using advanced machine learning (ML) and it traces rotational speed variations over the past 3 000 years.