AIR Currents

The 2004 Sumatra earthquake actually made the planet rounder

December 18, 2014

Did you know that the 2004 Sumatra earthquake actually made the planet rounder? The magnitude >9 caused a catastrophic land displacement that decreased the bulge in the Earth's midsection in relation to the measurement from pole-to-pole by about one part in 10 billion. The massive megathrust quake also decreased the length of day by about 3 microseconds and shifted "mean North Pole" by about an inch.

Take a look back at the devastating earthquake and tsunami in this AIR Currents article.




You’re almost done.
We need to confirm your email address.
To complete the registration process, please click the link in the email we just sent you.

Unable to subscribe at this moment. Please try again after some time. Contact us if the issue persists.

The email address  is already subscribed.