Skip to main content
Fig. 13 | Earth, Planets and Space

Fig. 13

From: Spatiotemporal functional modeling of postseismic deformations after the 2011 Tohoku-Oki earthquake

Fig. 13

Evolution of the slip zone on the plate surface. a Orange areas reveal the slip on the plate surface of the distribution of the steady velocity Vt term (> 10 cm/year) (Eqs. 3 and 4) before 2011, and the blue contours depict the coseismic slip of the 2011 Tohoku-Oki earthquake (Ozawa et al. 2012, > 10 m). b Light blue areas indicate the coseismic slip (> 10 m), and pink contours reveal the slip on the plate surface of the short-period logarithmic term (> 2 m) during the three years after the earthquake. c Epicenter distribution map from 2011 to 2014 (including the period when the 2011 Tohoku-Oki earthquake occurred). The depth is 15 km or more, and M > 4.5. d Pink areas depict the slip on the plate surface of the short-period logarithmic term (> 2 m), and green contours represent the gap2015 (> 5 cm). EQ1, EQ2, and EQ3 indicate epicenter locations of the Urakawa-Oki earthquake (M6.7) on January 14, 2016, the Sanriku-Oki earthquake (M6.9) on February 17, 2015, and the Miyagiken-Oki earthquake (M6.8) on May 13, 2015, respectively. e Green areas depict the gap2015 (> 5 cm), and red contours reveal the linear deformation (> 2 cm/year) after 2015. Stars represent the EQs described in d. f Epicenter distribution map from 2015 to 2018. The depth is 15 km or more, and M > 4.5. Stars represent the EQs described in d. Areas B to E represent the locations of the characteristic displacement in e. F represents an area with a small displacement in any of the figures, and A represents the location at which the maximum displacement was estimated to have occurred in the main shock of the 2011 Tohoku-Oki earthquake. Isodepth contours of the Pacific slab were estimated by Kita et al. (2010), Nakajima and Hasegawa (2006), and Nakajima et al. (2009)

Back to article page