Figure 2. The shaking from the magnitude 7.5 earthquake was recorded by the Japanese strong ground motion network, with observations over 15 to 600 kilometers from the fault rupture modeled by the USGS. The shaking within 40 kilometers of the rupture is extremely high — about four times higher than the ground motion model expected by the USGS ShakeMap algorithm. (See orange and red triangles on the left side of the figure. Some are well above the USGS model confidence interval.) Credit: USGS v.1 ShakeMap Analysis

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Figure 2. The shaking from the magnitude 7.5 earthquake was recorded by the Japanese strong ground motion network, with observations over 15 to 600 kilometers from the fault rupture modeled by the USGS. The shaking within 40 kilometers of the rupture is extremely high — about four times higher than the ground motion model expected by the USGS ShakeMap algorithm. (See orange and red triangles on the left side of the figure. Some are well above the USGS model confidence interval.) Credit: USGS v.1 ShakeMap Analysis

Figure 2. The shaking from the magnitude 7.5 earthquake was recorded by the Japanese strong ground motion network, with observations over 15 to 600 kilometers from the fault rupture modeled by the USGS. The shaking within 40 kilometers of the rupture is extremely high — about four times higher than the ground motion model expected by the USGS ShakeMap algorithm. (See orange and red triangles on the left side of the figure. Some are well above the USGS model confidence interval.) Credit: USGS v.1 ShakeMap Analysis

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