In September 2023, a global seismic mystery began to unfold. Every 90 seconds, the Earth pulsed with a strange, low-frequency ...

Data captured from seismic waves caused by earthquakes has shed new light on the deepest parts of Earth’s inner core, according to seismologists from The Australian National University (ANU).

Sound waves, pressure waves and primary waves (a type of seismic wave produced by earthquakes), are longitudinal waves. Longitudinal waves can also be made by pushing a spring forwards and ...

Data captured from seismic waves caused by earthquakes has shed new light on the deepest parts of Earth’s inner core, according to seismologists from The Australian National University (ANU).

Song and Yang next looked at seismic records from the South Sandwich Islands going back to 1964, which they suggest illustrates a similar transition point in the core’s rotation.

On March 28, 2025, a major earthquake with a moment magnitude (Mw) of 7.7 struck Mandalay, central Myanmar (referred to as ...

Data captured from seismic waves caused by earthquakes has shed new light on the deepest parts of Earth’s inner core, according to seismologists from The Australian National University (ANU).