IASPEI GT update log

31 March, 2023

188 new events for July to December 2020 have been added to the Ground Truth database, events up to 2020-12-31 are available.


21 October, 2022

151 new events for January to June 2020 have been added to the Ground Truth database, events up to 2020-07-01 are available.


14 March, 2022

362 new events for 2019 have been added to the Ground Truth database, events up to 2020-01-01 are available.


17 May, 2021

152 new events from the second six months of 2018 have been added to the Ground Truth database, events up to 2019-01-01 are available.


7 December, 2020

254 new events from the first six months of 2018 have been added to the Ground Truth database, events up to 2018-07-01 are available.

A small number of station anomolies have also been fixed so please also download the current station list.


9 July, 2020

338 new events from the second six months of 2017 and 250 events between 1980 and 2010 have been added to the Ground Truth database, events up to 2018-01-01 are available.


27 March, 2020

396 new events from the first six months of 2017 have been added to the Ground Truth database, events up to 2017-09-03 are available. Please note a number of event ids have changed.


16 July, 2019

489 new events from the last six months of 2016 have been added to the Ground Truth database, events up to 2017-09-03 are available. Please note a number of event ids have changed.


18 January, 2019

115 new events from the first six months of 2016 have been added to the Ground Truth database, events up to 2017-09-03 are available. Please note a number of event ids have changed.


22 October, 2018

Database maintenance involved the changing of several event numbers to link correctly to the main ISC database.


08 October, 2018

4 new GT5 underground nuclear explosions have been added to the Ground Truth database, events up to 2017-09-03 are available.


02 October, 2018

164 new events from the last six months of 2015 have been added to the Ground Truth database, events up to 2017-04-03 are available.


22 May, 2018

128 new events from the first six months of 2015 have been added to the Ground Truth database, events up to 2017-04-03 are available.


10 May, 2018

Seven new events from 1967 to 1980 been added to the Ground Truth database, events up to 2017-04-03 are available.

ISC hypocentres from 1964 to 1979 have been updated from the ISC rebuild.


13 Feb, 2018

New events from the second half of 2014 have been added to the Ground Truth database, events up to 2017-04-03 are available.


04 Jan, 2018

New events up to 2017-04-03 are now added to the Ground Truth database


10 Oct, 2017

New events up to 2015-04-30 are now added to the Ground Truth database


14 Jun, 2016

New events up to 2013-06-30 are now added to the Ground Truth database


06 Apr, 2016

Five new events from Nicaragua and Costa Rica have been added to the Ground Truth database, proposed by the CTBTO RSTT Workshop in Costa Rica on September 2015


10 Aug, 2015

New events up to 2012-12-31 are now added to the Ground Truth database


26 May, 2015

Please note that the following events have been removed from the Ground Truth database:

Event 1975176 Egypt 2001/06/12 13:43:25.74

Event 7493011 Egypt 2005/04/16 19:55:11.23

Event 600212515 Egypt 2011/12/26 17:01:26.01


These events will always be available in the main ISC bulletin:

Event  1975176 Egypt   2001/06/12 13:43:25.74

Event  7493011 Egypt   2005/04/16 19:55:11.23

Event 600212515 Egypt  2011/12/26 17:01:26.01  


24 Apr, 2015

The following events will be removed soon from the Ground Truth database, since a more comprehensive revision carried out by the contributors (Ali et al., 2013) showed that these hypocentres do not meet the GT criteria (Bondár and McLaughlin, 2009).

Event  1975176 Egypt   2001/06/12 13:43:25.74

Event  7493011 Egypt   2005/04/16 19:55:11.23

Event 600212515 Egypt  2011/12/26 17:01:26.01  

Please consider to avoid using them until they are fully removed from the database.