In a message dated 9/17/2006 6:25:22 PM Mountain Standard Time, Goh83642 at wmconnect.com writes: If you go to the link above, it should connect you to the Webicorder Display for Norris Geyser Basis for the 14 September 2006 chart. My question to the experts of this group is: What has caused the disturbance that is seen at 20:00 MST on this chart? Is there a correlation to a geyser in eruption that would last 30 minutes and cause the seismograph to record such an eruption? I do not know what caused this, but the time was 2000 Universal time, and thus (actually) 1350+seconds MDT. Scott Bryan -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20060917/cfe5e9c8/attachment.html>