The surface of the Earth’s inner core may be changing
The Earth’s inner core is 3,000 miles below the surface and was thought to be a solid sphere held by gravity in the molten outer core. Recent studies show that the inner core’s rotation rate or shape can change over years or decades. This was found through variations in seismic waves from repeated earthquakes.
Scientists Detect Shape-Shifting Along Earth’s Solid Inner Core
The inner core at the center of the Earth, a ball of iron and nickel about 1,500 miles wide, may not be perfectly solid. A new study finds evidence that the inner core’s outer boundary has noticeably changed shape over the past few decades.
The surface of Earth's inner core may be shape-shifting, new research suggests. The study, published Feb. 10 in the journal Nature, looked at earthquake waves that have skimmed the edge of the ...
Seismologists study earthquakes by looking at the damage that was caused and by using seismometers. A seismometer is an instrument that records the shaking of the Earth's surface caused by ...
A new study reveals that the Earth's inner core is undergoing a structural transformation. A new study by USC scientists, ...
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