Jegen Anna ajegen@geomar.de 0000-0002-5196-7575 GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Lange Dietrich dlange@geomar.de 0000-0003-2654-7963 GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Dannowski Anke adannowski@geomar.de 0000-0001-8581-7500 GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Grevemeyer Ingo igrevemeyer@geomar.de 0000-0002-6807-604X GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Barckhausen Udo Udo.Barckhausen@bgr.de 0000-0001-6693-5114 Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover BGR http://www.bgr.de https://ror.org/04d77de73 Engels Martin Martin.Engels@bgr.de Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover BGR http://www.bgr.de https://ror.org/04d77de73 2026 Microseismicity in the period 2019-12 - 2020-08 at the Rodriguez Triple Junction in the Indian Ocean (MSEED waveform files) dataset https://doi.org/10.1594/PANGAEA.988020 2026-06-01T04:22:01 Data of 15 Ocean-bottom seismometers, which were deployed in the area of the Rodriguez Triple Junction, nine (OBS01-OBS07, OBS09-OBS10) at an average distance of ~16 km around the southernmost segment of the Central Indian Ridge (CIR) and another 6 (OBS11-16) in a dense spacing of ~1.9 km at the Kairei hydrothermal vent field. Water depths range from about 2.3 km - 3.9 km. The nine CIR-stations acquired data from 19.12.2019 until the 9.08.2020. The Kairei-stations recorded data from 25.12.2019 until 10.08.2020. All stations recorded with a sampling frequency of 250 Hz using a 6d6 data logger. Time corrections for sensor drift were applied approximating both a linear and non-linear component. While the stations OBS03, OBS06, OBS07 were equipped with 4.5 Hz geophones, all other stations measured the vertical and horizontal components of the seismic wavefield using broad-band seismometers (Trilium Compact 120s). All stations were also equipped with a hydrophone (HTI-04) to measure the pressure wavefield in the water column. 69.9147 70.112217 -25.608 -25.306409 70.01926506666668 -25.433742133333332 2019-12-19T12:49:27 2020-08-10T13:03:24 -3857.0 -2337.0 Bundesministerium für Bildung und Forschung, Bonn BMBF https://www.bmbf.de https://doi.org/10.13039/501100002347 03G0301A SO301 - SCIROCCO: Seismic image of the Central Indian Ridge – Structure and development of oceanic core complexes; Project: Reflection seismic measurements https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03G0301A Bundesministerium für Bildung und Forschung, Bonn BMBF https://www.bmbf.de https://doi.org/10.13039/501100002347 03G0301B SO301 - SCIROCCO: Seismic image of the Central Indian Ridge – Structure and development of oceanic core complexes; Project: Refraction seismic measurements https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03G0301B Rodriguez_Triple_Junction-OBS01 OBS01 -25.460583 69.935633 -2979.0 2019-12-19T13:07:42 2020-08-09T03:56:24 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS02 OBS02 -25.52825 69.96165 -3274.0 2019-12-19T13:22:21 2020-08-09T05:16:15 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS03 OBS03 -25.608 70.011833 -3658.0 2019-12-19T16:28:04 2020-08-09T08:46:47 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS04 OBS04 -25.583717 70.112217 -3029.0 2019-12-19T13:32:23 2020-08-09T10:51:09 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS05 OBS05 -25.5115 70.095567 -3564.0 2019-12-19T14:16:07 2020-08-09T11:47:10 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS06 OBS06 -25.486167 70.028717 -3857.0 2019-12-19T12:49:27 2020-08-09T12:57:22 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS07 OBS07 -25.4429 70.081933 -3597.0 2019-12-19T15:35:44 2020-08-09T20:01:26 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS09 OBS09 -25.367067 69.929333 -3268.0 2019-12-19T14:39:42 2020-08-10T03:22:48 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS10 OBS10 -25.590367 69.9147 -3703.0 2019-12-19T15:47:06 2020-08-09T06:52:34 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS11 OBS11 -25.31522 70.03325 -2515.0 2019-12-25T06:12:35 2020-08-10T09:04:37 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS12 OBS12 -25.323399 70.038585 -2562.0 2019-12-25T04:39:16 2020-08-10T10:04:02 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS13 OBS13 -25.327643 70.051339 -2434.0 2019-12-25T06:35:22 2020-08-10T10:43:24 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS14 OBS14 -25.326953 70.034045 -2714.0 2019-12-25T07:03:57 2020-08-10T11:32:17 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS15 OBS15 -25.306409 70.040626 -2337.0 2019-12-25T07:28:49 2020-08-10T12:15:25 Ocean bottom seismometer OBS Rodriguez_Triple_Junction-OBS16 OBS16 -25.327957 70.019548 -2845.0 2019-12-25T07:50:29 2020-08-10T13:03:24 Ocean bottom seismometer OBS 16980 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ The final catalogue is given in NORDIC format ("RTJ-stC-manualVpVs-Mags-allPicks-WF_selec.nor"). The names of each event datafile is named in the corresponding event's header lines in the catalogue file. Said datafiles (comprising all available channels and stations) can be found in SEISAN database format. Further information on station coordinates, sync times and geophone build can be found in the individual stationinformation files named OBS*.csv, with * being the respective stationnumber. Binary Object Binary Binary File content Content Content CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Indian Ocean Mid-Ocean Ridges seismicity author10965 author29739 author48048 author49117 author644 author67707 award4159 award4160 curlevel30 event3331414 event3331415 event3331416 event3331417 event3331418 event3331419 event3331420 event3331421 event3331422 event3331423 event3331424 event3331425 event3331426 event3331427 event3331428 funder276 geocode1599 geocode1600 geocode1601 geocode8128 inst125 inst20147 license21 method11384 param146419 param99583 term44005 term52928 term60821