Skip to main content
Progress in Earth and Planetary Science
Fig. 9 | Progress in Earth and Planetary Science

Fig. 9

From: Fault geometry of M6-class normal-faulting earthquakes in the outer trench slope of Japan Trench from ocean bottom seismograph observations

Fig. 9

Focal mechanisms and first-motion polarities of the November 12, 2017 earthquake and its aftershocks. The epicenter of the mainshock is marked with a green star. Earthquakes within 6 h from the mainshock are indicated by circles color-coded with time after the mainshock as in the magnitude-time diagram in the bottom right panel. Note that the time range differs from that in Fig. 8. Focal mechanisms are indicated with first-motion polarities. Two focal mechanisms within the solid rectangle are ranked as quality B by the HASH program (Hardebeck and Shearer 2002). The other six focal mechanisms are ranked as quality D

Back to article page