[Geysers] Indigo Spring, changes due to quakes?

[Mike Keller]

Karen,

 

Indigo Spring is an intermittent spring.  I have never timed, nor am aware
of any exact data ever taken on its activity, but I have seen it below
overflow and its runoff channels dry in the past.  A few years ago I posted
on the list server asking if anyone had ever spent time watching it and
received no reply.

 

MK

 

-----Original Message-----
From: geysers-bounces at lists.wallawalla.edu
[mailto:geysers-bounces at lists.wallawalla.edu] On Behalf Of Karen Low
Sent: Tuesday, January 06, 2009 6:35 PM
To: geyser list
Subject: [Geysers] Indigo Spring, changes due to quakes?

 


This afternoon (1/6/2009), Wim Kolk, one of Xanterra's guides based out of
Mammoth, asked if I'd heard anything about thermal features changing due to
the recent earthquakes.  I said I hadn't heard, but that there aren't many
geyser gazers around to notice.

 

Wim said that on December 26th, late in the morning when he was headed to
Old Faithful, that the runoff channels from Indigo Spring (Midway Geyser
Basin) were completely dry, with snow on them, but that afternoon, when he
was headed back to Mammoth, they were trickling again, and the next day,
running as normal.

 

I said there may be a possible relation to the earthquakes, but now looking
back over the earthquakes, the swarm started in the afternoon, local time,
so perhaps the changes in Indigo's runoff and the quake swarm, share a
common trigger.  Well, it is a hypothesis, anyway!  Kind of hard to test it.
The traditional scientific method sometimes doesn't work perfectly for
geology.

 

I was off on December 26th, and the Mammoth drivers go past Midway Geyser
Basin more often than I do, and they do usually stop there to let their
guests take pictures.

 

Karen Low

 

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