Using Array‐Derived Rotational Motion to Obtain Local Wave Propagation Properties From Earthquakes Induced by the 2018 Geothermal Stimulation in Finland

We estimate vertical rotation rates for 204 earthquakes that were induced by the 2018 stimulation of the Espoo/Helsinki geothermal reservoir from wavefield gradients across geophone arrays. The array‐derived rotation rates from seismograms recorded at 6–9 km hypocentral distances vary between 10−9 a...

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Veröffentlicht in:	Geophysical research letters 2021-03, Vol.48 (6), p.n/a
Hauptverfasser:	Taylor, G., Hillers, G., Vuorinen, T. A. T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Arrays Back propagation Beamforming Bedrock Computation Direction Earth structure Earthquakes Geology Ground motion Incidence angle induced seismicity Instruments P-waves Phase velocity Propagation Propagation velocity Reservoirs Rotation rotational motion S waves Seismic activity seismic arrays seismic gradiometry Seismic waves Seismograms Seismographs seismology Seismometers SH waves Stimulation Translation Translational motion Wave propagation
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