I'm sure everyone is aware of the catastrophic earthquake and tsunami that has devastated Japan and affected several countries and millions of lives.
I found this little bit of info while reading the online newspaper today. My thoughts are with all of those affected by this disaster. Stay safe, everyone!
WASHINGTON - You won't notice it, but the day just got a tiny bit shorter because of Friday's giant earthquake off the coast of Japan.
NASA geophysicist Richard Gross calculated that Earth's rotation sped up by 1.6 microseconds. That is because of the shift in Earth's mass caused by the 8.9-magnitude earthquake. A microsecond is one-millionth of a second.
That change in rotation speed is slightly more than the one caused by last year's larger Chile earthquake. But 2004's bigger Sumatra earthquake caused a 6.8-microsecond shortening of the day.
The Japan quake is the fifth strongest since 1900.