[Geysers] Grand without Grand?

[Pat Snyder]

Thank you Mary Beth and David for the explaining this after-eruption action at Grand. I've also seen these afterplay bursts and they are lots of fun! It's like a bonus eruption.

I have an additional question. Does this afterplay always occur? Or is it more likely from a multi-burst eruption of Grand? I have seen afterplay that's quite tall, maybe to 40-50 feet (very cool), but only after two-burst eruptions. Also, true afterBURSTS (much taller and larger water volume) also are more likely after multi-burst eruptions, too, correct? Thanks for any explanation folks can offer...

Very interesting, regardless! Thanks for asking, Janet. I need to hang out longer after Grand!
Pat Snyder


On May 19, 2012, at 8:03 AM, Mary Beth Schwarz wrote:
>      Janet, thanks for reporting something you had not seen before. You never know whether it might be something very unusual or alternatively just something new to you.  The geysers can do strange and wonderful things for us!
> 
>      What you described sounds like AFTERPLAY at Grand.  When Grand erupts and then finishes its eruption, Turban and Vent either Continue for about 20 to 45 minutes (or longer) or they Quit and then must restart, which can take from about 3 minutes to over 25 minutes (during which the Grand area is quiet),  and erupt for a while after Grand.  It is also possible for Turban and Vent to have an extra restart after the first one and that is usually when there are longer intervals of Grand.  If T&V Restart, Turban usually begins first and Vent joins in.  Either way (Continue or Quit), there will be sparkly afterplay splashes from Grand's empty crater with a little left over water in the system during part of the T&V eruption after Grand just as you saw.
> 
>      Many times I have encouraged people to stay after Grand finishes to see this lovely splashing, and I do remember the first time I saw it and thought it was remarkable and beautiful.  It is still fun to watch even after all the years.
> 
>      Mary Beth Schwarz
> 
> On Fri, May 18, 2012 at 10:22 PM, Will Boekel <wolveslax65 at comcast.net> wrote:
> 
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