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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'>Except that this happens all the time Jeremy, not for very long granted but when any large event occurs the pt version is often hanging around after the us version has been promulgated.<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'>It is not a problem as I/we have been aware of this for many years.<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'>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<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><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>Fee, Jeremy<br><b>Sent:</b> 01 June 2016 17:56<br><b>To:</b> James Richards <james@artisanglobal.com><br><b>Cc:</b> <realtime-feed-users@geohazards.usgs.gov> <realtime-feed-users@geohazards.usgs.gov><br><b>Subject:</b> Re: [Realtime-feed-users] Duplicate Fiji earthquakes last night<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hello,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'>This was due to an error in one of the messages from the National Tsunami Warning Center, which prevented the automatic association of events. They are aware of the problem and have taken steps to prevent it in the future.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Here is the partial timeline:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>2016-05-28T05:38:51.430Z origin time<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>2016-05-28T05:44:56.000Z PT solution<o:p></o:p></p></div><div><p class=MsoNormal>Event added, PT solution is most preferred.<o:p></o:p></p></div></div><blockquote style='margin-left:30.0pt;margin-right:0cm'><div><div><p class=MsoNormal>latitude = -21.961<o:p></o:p></p></div></div><div><div><p class=MsoNormal>longitude = -177.862<o:p></o:p></p></div></div><div><div><p class=MsoNormal>magnitude = 6.6 Mi<o:p></o:p></p></div></div><div><div><p class=MsoNormal>time = 2016-05-28T05:38:49.000Z<o:p></o:p></p></div></div></blockquote><div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>2016-05-28T05:49:30.999Z AT solution with rounding problem<o:p></o:p></p></div><div><p class=MsoNormal>Event updated, AT solution is most preferred (neither AT and PT are authoritative, and AT contributed most recently)<o:p></o:p></p></div></div><blockquote style='margin-left:30.0pt;margin-right:0cm'><div><div><p class=MsoNormal>latitude = -22<o:p></o:p></p></div></div><div><div><p class=MsoNormal>longitude = -177<o:p></o:p></p></div></div><div><div><p class=MsoNormal>magnitude = 6.6 Mi<o:p></o:p></p></div></div><div><div><p class=MsoNormal>time = 2016-05-28T05:38:50.000Z<o:p></o:p></p></div></div></blockquote><div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>2016-05-28T05:56:54.040Z US solution<o:p></o:p></p></div><div><p class=MsoNormal>Event added, US solution is most preferred (US and AT solutions outside automatic association window of 16s and 100km)<o:p></o:p></p></div></div><blockquote style='margin-left:30.0pt;margin-right:0cm'><div><div><p class=MsoNormal>latitude = -22.0213<o:p></o:p></p></div></div><div><div><p class=MsoNormal>longitude = -178.1606<o:p></o:p></p></div></div><div><div><p class=MsoNormal>magnitude = 6.6 Mwp<o:p></o:p></p></div></div><div><div><p class=MsoNormal>time = 2016-05-28T05:38:51.430Z<o:p></o:p></p></div></div></blockquote><div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>2016-05-28T06:27:36.324Z AT solution deleted<o:p></o:p></p></div><div><p class=MsoNormal>PT and US solutions automatically merged, US solution is most preferred.<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Jeremy<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Sat, May 28, 2016 at 9:20 AM, James Richards <<a href="mailto:james@artisanglobal.com" target="_blank">james@artisanglobal.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica",sans-serif'>Hi Jeremy,<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><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><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'>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><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'>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" target="_blank">earthquake.usgs.gov</a> about that particular quake pt16149050 being in error.<o:p></o:p></span></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>Thanks in advance!<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Kind regards,<o:p></o:p></p></div><div><p class=MsoNormal>James<span class=hoenzb><span style='color:#888888'><o:p></o:p></span></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;color:#888888'>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;color:#888888'><a href="mailto:james@artisanglobal.com" target="_blank">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;color:#888888'><o:p> </o:p></span></p></div></div></div></div></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>