Figure 3
From: Nucleation process of the 2011 northern Nagano earthquake from nearby seismic observations
Migration of seismicity within the East cluster. (a) Relative distances of events occurred within the shallower sub-cluster versus their occurrence time. (b) Same as (a) for the deeper sub-cluster. Relative distances are measured relative to the first event of each sub-cluster. Solid purple, upper dashed and lower dashed lines indicate the fluid diffusion front, for a diffusivity parameter, D, of 50, 100 and 25 (m2/s), respectively. Size of circles scale with the corresponding events’ magnitude. Diamonds indicate small events for which was not possible to determine reliably magnitudes.
