anchor.diff:  BRIO,10,Brighton,Portable,,2014-03-10T21:32:00Z,2014-10-06T00:30:00Z
   BRKS,10,Breaksea Sound,Portable A,,2009-07-17T00:00:01Z,2009-12-10T06:18:00Z
   BRKS,20,Breaksea Sound,Portable B,,2009-07-17T00:00:01Z,2009-09-14T22:42:00Z
  -BSWZ,10,Blackbirch Station,,,2003-12-09T00:00:00Z,9999-01-01T00:00:00Z
  -BSWZ,20,Blackbirch Station,,,2016-12-08T02:00:00Z,9999-01-01T00:00:00Z
  +BSWZ,10,Blackbirch Station,,0,2003-12-09T00:00:00Z,9999-01-01T00:00:00Z
  +BSWZ,20,Blackbirch Station,,3,2016-12-08T02:00:00Z,9999-01-01T00:00:00Z
   BSZ,10,Bushy Park,Short Period,,1990-06-20T05:14:00Z,2003-11-27T03:07:00Z
   BWZ,10,Berwen Station,Short Period,,1991-02-20T11:46:00Z,2004-06-21T22:39:00Z
   BYTT,10,Blyth track,,,2008-02-13T16:01:00Z,2009-01-18T00:00:01Z
  
positive.code: WQSZ,10,Whataroa DFDP2 Quarry,,,2014-06-23T00:00:05Z,9999-01-01T00:00:00Z
  WRAV,10,Wairua,Short Period,,1995-01-13T10:42:00Z,1998-04-05T21:40:00Z
  WROM,10,White Rock,Short Period,,1993-11-04T10:07:00Z,1994-03-06T14:25:00Z
  WSRZ,10,White Island - Summit,,,2013-04-08T04:00:00Z,9999-01-01T00:00:00Z
  WSRZ,30,White Island - Summit,,,2013-04-08T04:00:00Z,9999-01-01T00:00:00Z
  WSRZ,31,White Island - Summit,,,2014-11-20T02:00:00Z,2018-05-28T21:00:00Z
  WSRZ,32,White Island - Summit,,,2014-11-20T02:00:00Z,2018-05-28T21:00:00Z
  WSRZ,33,White Island - Summit,,,2018-05-28T22:15:00Z,9999-01-01T00:00:00Z
  WSRZ,34,White Island - Summit,,,2018-05-28T22:15:00Z,9999-01-01T00:00:00Z
  WTA,10,Waitahora,Short Period,,1990-02-19T21:40:00Z,1990-05-17T20:29:00Z
  WTAC,10,Waitaha,Short Period,,2001-01-12T08:37:00Z,2001-06-26T19:07:00Z
  WTAZ,10,Waiatarua,,,2006-12-13T02:20:01Z,2022-05-17T01:32:00Z
  
negative.code: MOVZ,10,Moawhango Dam,,,2004-06-01T12:00:00Z,9999-01-01T00:00:00Z
  MOZ,10,Mahoenui,Short Period,,1989-09-28T03:26:00Z,2003-09-29T18:27:00Z
  MPGJ,10,Monkey Puzzle Gorge,Short Period,,2001-12-10T02:02:00Z,2002-06-28T21:55:00Z
  MQZ,10,Glencoe Station,,0,1998-10-23T02:59:00Z,9999-01-01T00:00:00Z
  MQZ,10,Glencoe Station,Short Period,,1989-10-13T08:40:00Z,1998-10-23T02:43:00Z
  MQZ,11,Glencoe Station,Short Period,,1990-01-05T22:02:00Z,1999-01-05T20:45:00Z
  MQZ,12,Glencoe Station,Short Period,,1990-01-05T22:02:00Z,1990-06-26T12:16:00Z
  MQZ,20,Glencoe Station,,3,1998-10-14T00:00:00Z,2016-02-23T08:00:00Z
  MRH,10,Marewa Ministry of Works and Development,SNARE Network,,1987-03-19T22:55:00Z,1989-07-31T19:41:00Z
  MRHZ,10,Matea Road,,,2010-05-14T03:00:00Z,9999-01-01T00:00:00Z
  MRNZ,10,Matariki (seismic) Terrace Road,,,2015-04-02T00:00:05Z,9999-01-01T00:00:00Z
  MRVO,10,Morven,Portable,,2014-10-13T03:10:00Z,2015-04-12T04:00:00Z
  MRW,10,Makara Bunker,,,2003-11-13T01:00:00Z,2008-06-17T04:40:00Z
  MRW,11,Victoria University,EARSS Network,,2003-11-13T00:00:00Z,2004-05-16T23:00:00Z
  MRWZ,10,Makara Bunker,Test 1,,2008-04-15T22:05:00Z,2008-04-21T22:00:00Z
  MRWZ,11,Makara Bunker,Test 2,,2008-04-21T22:05:00Z,2008-08-28T01:00:00Z
  MRZ,10,Mangatainoka River,,0,2003-07-31T00:00:00Z,9999-01-01T00:00:00Z
  MRZ,10,Mangatainoka River,Short Period,,1992-04-08T04:21:00Z,2003-04-15T01:43:00Z
  MRZ,20,Mangatainoka River,,3,2003-07-31T00:00:00Z,2011-04-13T00:00:00Z
  MSHC,10,Marshland,Portable,,2011-02-25T23:00:02Z,2011-10-19T02:22:44Z
  MSWZ,10,Moikau Station,,,2003-08-28T20:55:00Z,9999-01-01T00:00:00Z
  MSZ,10,Milford Sound,,0,2005-07-19T20:00:00Z,9999-01-01T00:00:00Z
  MSZ,10,Milford Sound,Short Period,,1990-05-28T11:33:00Z,2005-06-15T04:06:00Z
  MSZ,20,Milford Sound,,3,2005-07-19T20:00:00Z,2017-05-23T04:15:00Z
  MSZ,20,Milford Sound,Strong Motion,,2017-05-23T04:15:01Z,9999-01-01T00:00:00Z
  MTAZ,10,Motutapu Island,,,2007-06-25T03:00:01Z,2012-10-09T01:30:00Z
  MTCA,10,Mount Cook,Short Period,,1997-09-19T21:37:00Z,1997-10-10T14:54:00Z
  MTHZ,10,Maungataniwha,,,2011-10-20T00:00:05Z,9999-01-01T00:00:00Z
  MTKA,10,Matukituki,Short Period,,1995-11-12T00:00:02Z,1996-04-22T23:59:59Z
  MTNF,10,Mount Napier,Short Period,,2000-11-03T06:54:00Z,2000-11-19T23:29:00Z
  MTSX,10,Kowhai Park,,0,2015-10-26T00:00:02Z,2016-08-16T00:00:01Z
  MTSX,20,Kowhai Park,,3,2015-10-26T00:05:00Z,2016-08-16T00:00:00Z
  MTTA,10,Mount Thomas,Short Period,,1995-11-07T00:00:01Z,1996-04-16T23:59:59Z
  MTVZ,10,Mangateitei,,,2005-03-15T21:00:00Z,9999-01-01T00:00:00Z
  MTW,10,Mount Morrison,,,2003-06-17T07:55:00Z,9999-01-01T00:00:00Z
  MTW,11,Victoria University,EARSS Network,,2003-06-17T07:50:00Z,2003-09-13T01:00:00Z
  MUGZ,10,Murupara,,,2011-03-29T00:01:00Z,9999-01-01T00:00:00Z
  MURE,10,Muriwai,Short Period,,1994-07-23T06:01:00Z,1994-12-10T14:59:00Z
  MUSJ,10,Musical Creek,Short Period,,2001-12-11T01:02:00Z,2001-12-27T00:52:00Z
  MWZ,10,Kiriroa,,0,2004-02-29T00:00:00Z,9999-01-01T00:00:00Z
  MWZ,20,Kiriroa,,3,2004-02-29T00:00:00Z,2011-08-18T20:50:00Z
  MXZ,10,Matakaoa Point,,0,2004-02-29T00:00:00Z,9999-01-01T00:00:00Z
  MXZ,20,Matakaoa Point,,3,2004-02-29T00:00:00Z,2011-08-17T22:50:00Z
  MYRZ,10,Mayor Island,,,2006-02-13T00:00:01Z,9999-01-01T00:00:00Z
  NA002,01,Ngauruhoe Outer Rim Fumarole,,,2021-05-06T04:00:00Z,9999-01-01T00:00:00Z
  NA002,02,Ngauruhoe Outer Rim Fumarole,,,2021-05-06T04:00:00Z,9999-01-01T00:00:00Z
  NA002,03,Ngauruhoe Outer Rim Fumarole,,,2021-05-06T04:00:00Z,9999-01-01T00:00:00Z
  NAAF,10,Anchorage Arm,Short Period,,1993-08-14T23:24:00Z,1993-08-17T17:55:00Z
  NADF,10,Anchorage Arm,Short Period,,1993-03-21T06:46:00Z,1993-06-19T15:05:00Z
  NAPT,40,Port of Napier,,0,2007-09-26T00:00:00Z,9999-01-01T00:00:00Z
  NAPT,41,Port of Napier,,1,2007-09-26T00:00:00Z,9999-01-01T00:00:00Z
  NBEZ,10,Newall Road,,,2012-10-16T00:01:00Z,9999-01-01T00:00:00Z
  NBRT,40,New Brighton Pier,,0,2021-05-14T02:07:00Z,9999-01-01T00:00:00Z
  NBRT,41,New Brighton Pier,,1,2021-05-14T02:07:00Z,9999-01-01T00:00:00Z
  NCPT,40,North Cape,,0,2008-12-23T00:00:00Z,9999-01-01T00:00:00Z
  NCPT,41,North Cape,,1,2008-12-23T00:00:00Z,9999-01-01T00:00:00Z
  NEZ,10,North Egmont Visitor Centre,,0,2020-01-31T05:44:00Z,9999-01-01T00:00:00Z
  NEZ,10,North Egmont Visitor Centre,Surface,,2010-02-21T00:00:02Z,2010-06-07T23:30:00Z
  NEZ,10,North Egmont Visitor Centre,Surface,,2014-03-20T00:01:00Z,2014-05-05T00:00:00Z
  NEZ,11,North Egmont Visitor Centre,,0,2010-06-07T23:35:00Z,2020-01-30T05:08:00Z
  NEZ,30,North Egmont Visitor Centre,,3,2014-03-21T00:00:02Z,9999-01-01T00:00:00Z
  NGA1,10,Mount Ngauruhoe 2006 Portable NGA1,,,2006-06-07T22:50:00Z,2007-04-20T04:00:00Z
  NGA2,10,Mount Ngauruhoe 2006 Portable NGA2,,,2006-06-08T01:00:00Z,2006-10-31T22:00:00Z
  NGA3,10,Mount Ngauruhoe 2006 Portable NGA3,,,2006-06-07T23:30:00Z,2006-10-31T22:00:00Z
  