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</o:shapelayout></xml><![endif]--></head><body lang=EN-IE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Hi James,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>My understanding is this. The pt reference is from the Pacific Tsunami centre. This is usually the first event to show. The us reference is the usgs reference and takes a little longer to be promulgated as it is not quite as raw data as the pt reference, but still subject to revision.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Once the us reference has been listed the pt reference is taken off, normally within a very short space of time after the listing of the us event.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>This is a normal course of events for the larger earthquakes.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Kind regards<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>David Loring<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Realtime-feed-users [mailto:realtime-feed-users-bounces@geohazards.usgs.gov] <b>On Behalf Of </b>James Richards<br><b>Sent:</b> 28 May 2016 16:20<br><b>To:</b> <realtime-feed-users@geohazards.usgs.gov> <realtime-feed-users@geohazards.usgs.gov><br><b>Subject:</b> [Realtime-feed-users] Duplicate Fiji earthquakes last night<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div id="bloop_customfont"><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>Hi Jeremy,<o:p></o:p></span></p></div><div id="bloop_customfont"><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p></div><div id="bloop_customfont"><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>Friday night at around 10:45 - 11:00 pm Pacific Time, I observed that two earthquakes were appearing separately in the real time data feed located SE of Fiji. The associated quake IDs were pt16149050 and us20005yqp. A short time later the quake with ID pt16149050 disappeared from the feed and was instead listed as an alternate quake ID in the ids property for us20005yqp. <o:p></o:p></span></p></div><div id="bloop_customfont"><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p></div><div id="bloop_customfont"><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>Can you tell us anything about what caused this, and what the proper terminology is for such occurrences? For example, is this what you would call a “ghost” event?<o:p></o:p></span></p></div><div id="bloop_customfont"><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p></div><div id="bloop_customfont"><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>Also, is there an errata associated with the real time feeds where we can verify any mistaken events that may have been reported and withdrawn? I couldn’t find anything on <a href="http://earthquake.usgs.gov">earthquake.usgs.gov</a> about that particular quake pt16149050 being in error.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>Thanks in advance!<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>Kind regards,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>James<o:p></o:p></span></p><div id="bloop_sign_1464447954664779008"><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>James Richards<br>Artisan Global LLC<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'><a href="mailto:james@artisanglobal.com">james@artisanglobal.com</a><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p></div></div></div></div></div></body></html>