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Grevemeyer, Ingo; Lange, Dietrich (2024): Microseismicity in the period 01/2021-06/2021 at the Oceanographer transform fault, Mid-Atlantic Ridge, 36°N: SEISAN/MSEED waveform files [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.973137

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Published: 2024-11-14 • DOI registered: 2024-12-13

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Abstract:
In January to June of 2021 a seismic network of ocean-bottom-seismometers was deployed along the Oceanographer Transform Fault offsetting the Mid-Atlantic Ridge to the south of the Azores. This dataset provides waveform event files of the largest local earthquakes detected in contineous waveform data, ranging in magnitude from Mw~1.5 to 3.5. The accompanying zip-file includes raw waveform data for events in mseed format (https://ds.iris.edu/ds/nodes/dmc/data/formats/miniseed) of 26 seafloor-moored seismic stations recording data. Note that seismic stations had a variable installation time of 21 days to 140 days. All data in the zipped file may be processed and used with the SEISAN seismology software.
Keyword(s):
local earthquakes; Mid-Atlantic Ridge; tectonics; transform fault
Funding:
European Research Council (ERC), grant/award no. 101096190: ERC-TRANSFORMERS
German Research Foundation (DFG), grant/award no. GPF20-3/090: METEOR M170
Coverage:
Median Latitude: 35.160138 * Median Longitude: -35.515000 * South-bound Latitude: 35.009420 * West-bound Longitude: -36.279680 * North-bound Latitude: 35.309470 * East-bound Longitude: -34.904370
Date/Time Start: 2021-01-20T17:12:09 * Date/Time End: 2021-01-21T17:49:31
Minimum Elevation: -4439.0 m * Maximum Elevation: -1230.0 m
Event(s):
M170_6-1 (OBS01) * Latitude: 35.009420 * Longitude: -34.995420 * Date/Time: 2021-01-20T17:12:09 * Elevation: -3699.0 m * Location: North Atlantic Ocean * Campaign: M170 (GPF 20‐3_090, TRANSFORMERS) * Basis: Meteor (1986) * Method/Device: Ocean bottom seismometer (OBS) * Comment: LOBSTER; broadband
M170_6-2 (OBS02) * Latitude: 35.059730 * Longitude: -34.969820 * Date/Time: 2021-01-20T17:38:34 * Elevation: -4302.0 m * Location: North Atlantic Ocean * Campaign: M170 (GPF 20‐3_090, TRANSFORMERS) * Basis: Meteor (1986) * Method/Device: Ocean bottom seismometer (OBS) * Comment: short-period
M170_6-3 (OBS03) * Latitude: 35.095200 * Longitude: -34.904370 * Date/Time: 2021-01-20T18:12:34 * Elevation: -3343.0 m * Location: North Atlantic Ocean * Campaign: M170 (GPF 20‐3_090, TRANSFORMERS) * Basis: Meteor (1986) * Method/Device: Ocean bottom seismometer (OBS) * Comment: short-period
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
822.2 MBytes

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