[Geysers] Giant 7-30-06 @ 0239

[Mike Keller]

Giant Geyser erupted at 0239 on Sunday, July 30th.  The eruption is the 4th
this month and took place about 10 hours after the conclusion of a 24 hour
marathon eruption of Grotto Geyser.  The interval was just over 6 ½ days.

 

The hot period started at 0227 with Mastiff quickly reaching overflow and
surging from 2-4 feet.  At the 3 minute mark, “India” was under an inch of
water.  All the normal vents were erupting in front of Giant (Feather,
Feather’s Satellite, Rust, and 3 “Southwest” Vents).  About 5 minutes into
the hot period, Mastiff stopped surging but continued to overflow heavily.
Around the 7 minute mark, Mastiff began surging 3-6 feet, by the 8 minute
mark it was surging up to 8 feet, and at the 9 minute mark it was as tall as
Giant’s cone.  If Cave and Turtle were doing anything, it wasn’t noted as we
were all watching Mastiff.  Mastiff began erupting at 0229, with the front
vent quickly reaching 30-40 feet.  Within 30 seconds the back vent of
Mastiff was also in eruption.  About a minute into Mastiff, the back vent
started jetting as high as 60 feet.  With this, Bijou entered a loud,
roaring steam phase.  Giant started at 0239 and completely drenched the
viewing platform.  The eruption was sharply angled towards it.  Paul
Strasser, who was in the area of the “GIP” when Giant started, felt this
eruption was as big as the one last week.  Catfish started at 0241 and was
easily 20-30 feet high.

 

MK

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