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Fig. 1 | Earth, Planets and Space

Fig. 1

From: Peak ground motions and characteristics of nonlinear site response during the 2018 Mw 6.6 Hokkaido eastern Iburi earthquake

Fig. 1

a, b Show the plots of observed horizontal vector PGAs and PGVs, respectively. A star denotes epicenter of the mainshock. Triangles and dashed red line denote active volcanoes and volcanic front line, respectively. c Enlarged view of the rectangular area drawn around the epicenter in a with additional information. Numbers in parentheses denote the values of horizontal vector PGAs (cm/s2) and PGVs (cm/s), respectively, at recording stations color-coded by PGAs. The magenta circles denote aftershocks of Mj ≥ 2 for the 9 days after the mainshock. The rectangle denotes the surface projection of an approximate fault plane. d Vertical section of JIVSM (Japan integrated velocity structure model) along the profile AA′ shown in c. A red dashed line denotes the intersection line of the inferred fault plane with the vertical section

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