[Geysers] Geyser data update for October

[Ralph Taylor]

I have just finished analysis of the Geyser Hill data for October and posted
the results on the GOSA website for the individual geysers (but not the
summary).  The rest of the UGB data still awaits.

Depression intervals began to shorten on 16 October, running around 9 hours
for a few days, then dropping sharply to the six hour range between 23 and
25 October, then dropping to the 3-4 hour range by 27 October.  The shortest
intervals were just over 2 hours!

Aurum switched to winter mode by 8 October and has remained there--no big
surprises there.

Beehive, on the other hand, had increased intervals in October, ending the
June to September run of consistent 12-15 hour intervals with an October run
of more erratic intervals ranging from under 9 hours (around the Giantess
eruption) to a few 24+ hour intervals.  Most intervals were in the 15-20
hour range.

Lion was doing its usual 2-5 eruption series with intervals between initial
eruptions of 9-15 hours until the Giantess eruption of 14 October.  Lion
began having very long series and very long series intervals, one reaching
nearly 3 days (69.5 hours, following a series of 27 eruptions).  The month
of October ended with a series of 32 eruptions (yes, XXXII eruptions), all
of which were major eruptions.  The series began at 0454 on 31 October and
ended with an eruption at 1522 on 1 November.  Amazing.

Little Cub seemed to anticipate the 14 October Giantess eruption by a sudden
decrease in intervals early on 12 October, when it changed to intervals
around 30 minutes (!).  At the time of Giantess, there was one longer
interval, but intervals remained in the 30-minute range with no overnight
dormancies until the 18th when intervals gradually increased to the 1-hour
mark by early on 27 October, where they remained.

Plate reacted to Giantess with a few (but only a few) short duration short
interval eruptions, then had only a few eruptions the rest of the month.

Plume was basically the same as in the recent past with intervals around an
hour.

Ralph Taylor