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Gravity Anomaly Reveals Deep Earth Changes, Study Finds

9/29/2025

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Summary

Story summary

In 2007, a gravity anomaly over the eastern Atlantic signaled deep Earth mass changes.
Researchers led by Charlotte Gaugne Gouranton used Gravity Recovery and Climate Experiment data (2002–2017).
The anomaly showed alternating gravity bands, suggesting deep-mass changes and unusual blobs near Earth's core.
The study attributes the signal to bridgmanite phase transition and notes a geomagnetic jerk.

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Story summary

In 2007, a gravity anomaly over the eastern Atlantic signaled deep Earth mass changes.
Researchers led by Charlotte Gaugne Gouranton used Gravity Recovery and Climate Experiment data (2002–2017).
The anomaly showed alternating gravity bands, suggesting deep-mass changes and unusual blobs near Earth's core.
The study attributes the signal to bridgmanite phase transition and notes a geomagnetic jerk.