Fig. 1 | Nature Communications

Fig. 1

From: Three-dimensional variations of the slab geometry correlate with earthquake distributions at the Cascadia subduction system

Fig. 1

Correlation of the seismicity in Cascadia with the geometry of the subducting slab. a Distribution of seismic stations (white dots) used for full-wave ambient noise tomography and regional earthquakes within the study region. The gray stars mark the offshore earthquakes with magnitude greater than 4.5 from 2000 to 2017 from the Global CMT catalog. The red and blue circles correspond to the M ≥ 3.0 earthquakes from 1975 to 2005 below and above the plate interface, respectively11. The black triangles mark the Cascade arc volcanoes and the Cobb axial seamount in the central Juan de Fuca ridge. The gray contours are the plate interface from 20 to 100 km depth10. The station pair 7D.G10B−TA.I05D is used in Fig. 2. b Shear-wave velocity model imaged in this study at 114 km depth. The black dots are the background seismicity in Cascadia. The black lines mark the profile locations used in Fig. 4

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