anchor.diff:  WI14,10,White Island 14,0,3,2011-06-12T12:00:02Z,2011-11-22T11:00:00Z
   WI15,10,White Island 15,0,3,2011-06-12T12:00:02Z,2011-11-22T11:00:00Z
   WIAZ,10,Waiheke Station,0,3,2010-07-26T15:15:00Z,9999-01-01T00:00:00Z
  -WIZ,10,Rotorua Hinemoa Tower (old Trustbank building),1,1,1988-11-15T18:00:00Z,1989-03-06T02:00:00Z
  -WIZ,10,Rotorua Hinemoa Tower (old Trustbank building),5,1,1993-08-24T02:01:00Z,2006-08-18T13:00:01Z
   WIZ,10,White Island - South Rim,0,1,2006-09-18T12:00:01Z,2007-04-18T15:00:00Z
   WIZ,10,White Island - South Rim,3,3,2007-04-18T16:00:00Z,9999-01-01T00:00:00Z
   WIZ,30,White Island - South Rim,0,1,2006-09-18T12:00:01Z,2007-04-18T15:00:00Z
  
positive.code: OXZ,10,View Hill,3,3,2009-03-13T11:00:02Z,2014-10-29T11:00:00Z
  OXZ,10,View Hill,0,3,2014-10-29T11:10:00Z,9999-01-01T00:00:00Z
  OXZ,20,View Hill,0,3,2009-03-13T11:00:02Z,2014-10-29T11:00:00Z
  PARZ,10,Rotorua Hinemoa Tower (old Trustbank building),8,1,1995-04-04T18:44:00Z,2002-12-08T01:43:00Z
  PATO,10,Patearoa,0,3,2014-09-18T10:00:00Z,2015-04-12T13:00:00Z
  PATZ,10,Rotorua Hinemoa Tower (old Trustbank building),1,1,1989-03-07T17:58:00Z,2006-08-18T13:00:01Z
  PATZ,10,Rotorua Hinemoa Tower (old Trustbank building),2,1,2006-08-18T13:00:01Z,2007-04-30T12:00:00Z
  PAWZ,10,Paruwai Farm,0,3,2004-07-13T12:00:00Z,9999-01-01T00:00:00Z
  PKE,10,Pukeiti Hill,0,3,2003-10-28T03:00:00Z,9999-01-01T00:00:00Z
  PKGZ,10,Pakihiroa,0,3,2010-06-21T12:00:00Z,9999-01-01T00:00:00Z
  
negative.code: CMWS,20,Cape Campbell Strong Motion,0,3,2013-07-23T15:00:25Z,2013-11-18T21:00:00Z
  CMWZ,10,Cape Campbell,0,3,2003-12-10T06:00:02Z,9999-01-01T00:00:00Z
  CNGZ,10,Carnagh Station,0,3,2006-07-21T11:00:01Z,9999-01-01T00:00:00Z
  CONO,10,Conical Hill Otago,0,3,2014-03-16T07:20:00Z,2014-09-11T12:00:00Z
  COVZ,10,Chateau Observatory,3,3,2010-11-30T09:50:00Z,2013-05-23T12:00:00Z
  COVZ,10,Chateau Observatory Borehole,0,3,2009-11-01T10:31:00Z,2010-11-30T09:30:00Z
  