<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Well, I definitely felt the earthquake at 6:04 pm!  Perhaps I'll head out in the basin after doing ski drops in the morning, to see if anything seems to be obviously reacting. Earthquakes rock my world! Karen Low --- On Sun, 1/17/10, Michael Goldberg <goldbeml@ucmail.uc.edu> wrote: <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> From: Michael Goldberg <goldbeml@ucmail.uc.edu> Subject: [Geysers] Seismograms To: geysers@lists.wallawalla.edu Date: Sunday, January 17, 2010, 6:03 PM <div class="plainMail">There was a small earthquake swarm this afternoon centered about 10 miles northwest of Old Faithful, with three events (so far) having magnitude between 2.5 and 2.7.  I've attached a copy of the current Old Faithful seismogram. For comparison purposes I also attached a couple of seismograms of recent Giantess eruptions: The July 6 eruption starts at 6:13 MST.  The large signal at 6:02 MST is from a distant 6.1 earthquake. The October 14 eruption starts at 3:48 MST.  There are a handful of local earthquakes, like the one at 6:02 MST.  I would guess that the long duration signals at midday and late afternoon are weather-related noise. If Giantess erupts during a rainstorm, I don't think we'd ever be able to tell from the seismic record. Michael Goldberg <a ymailto="mailto:Michael.Goldberg@uc.edu" href="/mc/compose?to=Michael.Goldberg@uc.edu">Michael.Goldberg@uc.edu</a></div> -----Inline Attachment Follows----- <div class="plainMail">_______________________________________________ Geysers mailing list <a ymailto="mailto:Geysers@lists.wallawalla.edu" href="/mc/compose?to=Geysers@lists.wallawalla.edu">Geysers@lists.wallawalla.edu</a> <a href="https://lists.wallawalla.edu/mailman/listinfo/geysers" target="_blank">https://lists.wallawalla.edu/mailman/listinfo/geysers</a></div></blockquote></td></tr></table>