Michele left a comment on suggestions but the surprise came later
Big Ar 2192 and flare X1.1 + CME
Note the Solex date: 14th October 2014, today is the 19th.
I looked at the Spaceweather archive for the 14th and of course the authors did not know what was about to happen
SOLAR SECTOR BOUNDARY CROSSING: High-latitude auroras are possible on Oct. 14th when Earth crosses through a fold in the heliospheric current sheet. This is called a “solar sector boundary crossing,” and NOAA forecasters estimate a 25% chance of polar geomagnetic storms when it occurs.
15th and fantastic photos more on 16th
AURORAS ON EARTH: A CME sideswiped Earth’s magnetic field on Oct. 14th. Shortly thereafter, Earth passed through a fold in the heliospheric current sheet (a “solar sector boundary crossing”). The combined effect was to ignite a spectacular light show around the Arctic Circle. “Auroras were running across the sky as soon as the daylight faded,” reports Frank Olsen who sends this picture from Sortland, Norway:
— http://spaceweather.com/archive.php?view=1&day=15&month=10&year=2014
A huge sunspot is appearing over the solar limb.
http://spaceweather.com/
Select archive date, to right of page
Lots more going on.
Post by Tim
Tallbloke's Talkshop 
I’ve flipped the spaceweather link from 14th as published to 15th otherwise the aurora photo doesn’t show on the link. Sorry about that.
Time machine
Question …
tidal or electric connection ?
😉
22-08-1859 — 10 days before carrington event
daltonsminima.altervista.org/wp-content/uploads/2013/05/SPE.jpg
02-08-1972
02-11-1960
31-10-1989
Bye,
Michele
http://spaceweathergallery.com/aurora_gallery.html
notable:
http://spaceweathergallery.com/indiv_upload.php?upload_id=103102&PHPSESSID=ovkjcnm3s2lfhk3e93isgamla3
There was an M7.3 earthquake off the Coast of Central America on 14 Oct 2014 – I wonder if there is any connection to the solar event?
If there is a list of these sector crossings does it correlate with a subset of quakes? Subset because many have local reasons.
I can think of a possible way of trying to identify such a match. Quite a lot of work.
http://www.swpc.noaa.gov/ftpdir/forecasts/SRS/1020SRS.txt
Nmbr Location Lo Area Z LL NN Mag Type
2192 S13E43 251 1560 Fkc 22 32 Beta-Gamma-Delta
Area = 1560
Ar 2192 is the region’s largest cycle 24?
previous
In the article I mentioned “A huge sunspot is appearing over the solar limb.”
AW has now posted on this
Interesting that the sunspot is ‘about the size of Jupiter’.
Bear in mind the recent post here about ‘brightpoints’ on the Sun.
The linked report noted:
‘The team found magnetic parcels in sizes that had been seen before, but also spotted much larger parcels than those previously noted — about the diameter of Jupiter.’
http://www.sciencedaily.com/releases/2014/09/140903104743.htm
Coincidence or not?
tchannon says:
October 20, 2014 at 9:18 pm
If there is a list of these sector crossings does it correlate with a subset of quakes? Subset because many have local reasons.
There is a list: http://wso.stanford.edu/SB/SB.Svalgaard.html
Overall there is no correlation with earthquakes:
No doubt, since there are thousands of event you can cherry pick the ones that occur when you want. But that would not be valid science.
[moderator: I TAKE OFFENCE AT YOU SUGGESTING A LACK OF INTEGRITY. — TIM CHANNON]
I TAKE OFFENCE AT YOU SUGGESTING A LACK OF INTEGRITY. — TIM CHANNON
Well, how would you select your ‘subset’, except as the ones that show an effect?
Leif:how would you select your ‘subset’
By magnitude I would expect.
My plot shows there is no effect at magnitudes greater than 6 and 7. So be specific: how would the selection proceed?
Another factor comes into play with high magnitude quakes. The majority of them occur when the sunspot number is lower than average.
@ Rog and lsvalgaard
http://michelecasati.altervista.org/significant-statistically-relationship-between-the-great-volcanic-eruptions-and-the-count-of-sunspots-from-1610-to-the-p.html
Quote : “…….The significant tests, conducted with the chi-square χ ² = 7,782, detect a p-value equal to 0,005. Applying a correction of Yates, p-value assume the value of 0,009….”
and
Quote : “…..It is possible to observe a relationship between large earthquakes with a magnitude of M8.3+ and the well-known two periods included in the eleven-year cycle of the solar magnetic activity: solar minimum and solar maximum (Chart 3). However, this analysis did not show any statistically significant relationship….”