This blog provides commentary on interesting geological events occurring around the world in the context of my own work. This work is, broadly, geological fluid dynamics. The events that I highlight here are those that resonate with my professional life and ideas, and my goal is to interpret them in the context of ideas I've developed in my research. The blog does not represent any particular research agenda. It is written on a personal basis and does not seek to represent the University of Illinois, where I am a professor of geology and physics. Enjoy Geology in Motion! I would be glad to be alerted to geologic events of interest to post here! I hope that this blog can provide current event materials that will make geology come alive.

Banner image is by Ludie Cochrane..

Susan Kieffer can be contacted at s1kieffer at gmail.com

Wednesday, September 6, 2017

September 6, Major X-Class Solar Flare!!!

Spaceweather.com just announced that a coronal mass ejection (CME) got launched toward earth out of sunspot AR2673 at 1292 UT today, and unleashed a major X9.3 class solar flare--the strongest solar flare in more than a decade!! It caused a strong shortwave radio blackout over a large region (see figure).Analyists are still working on determining whether or not it is Earth-directed.  In a list of the most powerful solar flares recorded since 1976, this flare ranks at #14.  Compared to the Carrington Event of 1859, this event is relatively mild.  However there may be some fantastic auroras this week.  Go to spaceweather.com for updates.

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