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2 clusters · 3 sources · 16 days · First seen · Last updated
Earth inner core rotation changes
Overview
Seismic analyses of earthquakes recorded between 1991 and 2023 indicate that Earth’s solid inner core has slowed its rotation and begun rotating in the opposite direction of the mantle. Researchers found that the iron-nickel sphere rotated faster than the mantle until the early 2000s, but decelerated around 2010.
This shift is considered part of a natural 70-year geophysical cycle. While the change affects the length of a day by a few thousandths of a second, scientists state it has no direct impact on human activity and is primarily useful for understanding the dynamics of Earth’s magnetic field.
Entities
Earth · John Vidal · Nature · South Sandwich Islands · University of Southern California
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 3 SOURCES] The Earth's rotation speed at the equator exceeds 1,600 kilometers per hour.
- [● 3 SOURCES] An instantaneous stop of Earth's rotation would cause objects, people, and buildings to continue moving due to inertia.
- [● 3 SOURCES] A sudden halt would cause massive ocean movements and extraordinary coastal flooding.
- [● 3 SOURCES] The atmosphere would generate extremely intense winds capable of destroying infrastructure.
Timeline
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12 days ago
[CULTURE] 3 sourcesEarth's rotation: Hypothetical consequences of a sudden stopA hypothetical analysis examines the catastrophic impact of a sudden stop in Earth's rotation, including massive inertial movement of objects, extreme coastal flooding, and devastating atmospheric winds.
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27 days ago
[INTERNATIONAL] 4 sourcesEarth’s Inner Core Slows and Reverses Rotation, Study FindsSeismic data show Earth’s solid inner core has slowed and begun rotating opposite to the mantle, a natural cycle with negligible effect on daily life.
Sources
diariodelcauca.com.co · elperiodicodeportivo.com.co · hsbnoticias.com