<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=US-ASCII"> <META content="MSHTML 6.00.2900.2963" name=GENERATOR></HEAD> <BODY id=role_body style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Arial" bottomMargin=7 leftMargin=7 topMargin=7 rightMargin=7><FONT id=role_document face=Arial color=#000000 size=2> <DIV> <DIV>In a message dated 9/17/2006 6:25:22 PM Mountain Standard Time, Goh83642@wmconnect.com writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT style="BACKGROUND-COLOR: transparent" face="Times New Roman" color=#000000 size=2>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?   </FONT></BLOCKQUOTE></DIV> <DIV></DIV> <DIV>I do not know what caused this, but the time was 2000 Universal time, and thus (actually) 1350+seconds MDT.</DIV> <DIV> </DIV> <DIV>Scott Bryan</DIV></FONT></BODY></HTML>