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Fig. 8 | Earth, Planets and Space

Fig. 8

From: Evaluation of strain accumulation in global subduction zones from seismicity data

Fig. 8

Schematic illustration of the interplate slip model. Top: locations of stick–slip patches on the plate boundary (ellipses) and their amount of seismic slip (Gaussian curves) by respective earthquakes. Eight stick–slip patches have their own earthquake sizes. A stick–slip patch on the plate boundary has the potential to produce an earthquake with an area and slip much larger than those of the other eight patches. Middle: slip history along the plate boundary at a constant time interval. Seismic and aseismic slip are shown by white and dark gray colors, respectively. Each stick–slip patch releases its slip deficit mainly by seismic slip. The accumulated slip increases with increasing distance from the center of the hidden potential stick–slip patch. In this case, each time interval corresponds to a relative plate motion of 1 m. The area covered by small stars corresponds to the slip during periods from time steps #2 to #4. Bottom: Slip history for the period from time steps #2 to #4 extracted from the middle figure. The slip deficit due to the hidden potential earthquake is not apparent

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