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Earth, Planets and Space
Fig. 2. | Earth, Planets and Space

Fig. 2.

From: Using the 2011 Mw 9.0 off the Pacific coast of Tohoku Earthquake to test the Coulomb stress triggering hypothesis and to calculate faults brought closer to failure

Fig. 2.

Focal mechanisms of the March 2011 Tohoku Earthquake aftershocks from two catalogs, with important aftershocks examined for stress transfer keyed to Table 2. The mainshock promotes failure of five of the seven events regardless of nodal plane or friction; for the remaining two events (#1–2) only one of the nodal planes is promoted (see Table 2). All aftershocks east of the mainshock are outer trench slope normal events, but there is also a group of coastal normal events midway between Tokyo and Sendai.

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