Figure 6. Starting 4 years after the 1946 mainshock, seismicity became sparse in the areas of high slip in the 1944 Tonankai and 1946 Nankai shocks, but remained abundant in the southwest. The recent quake, located in the center of a band of quakes that may keep up with the subduction of the Philippine Sea plate, suggests that great quakes are unlikely to occur there. Prior to 1950, the catalog is not complete for shocks greater than or equal to magnitude 4.5. Credit: Toda and Stein, (2022)

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Figure 6. Starting 4 years after the 1946 mainshock, seismicity became sparse in the areas of high slip in the 1944 Tonankai and 1946 Nankai shocks, but remained abundant in the southwest. The recent quake, located in the center of a band of quakes that may keep up with the subduction of the Philippine Sea plate, suggests that great quakes are unlikely to occur there. Prior to 1950, the catalog is not complete for shocks greater than or equal to magnitude 4.5. Credit: Toda and Stein, (2022)

Figure 6. Starting 4 years after the 1946 mainshock, seismicity became sparse in the areas of high slip in the 1944 Tonankai and 1946 Nankai shocks, but remained abundant in the southwest. The recent quake, located in the center of a band of quakes that may keep up with the subduction of the Philippine Sea plate, suggests that great quakes are unlikely to occur there. Prior to 1950, the catalog is not complete for shocks greater than or equal to magnitude 4.5. Credit: Toda and Stein, (2022)

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