Fig. 4.From: Change in seismicity beneath the Tokyo metropolitan area due to the 2011 off the Pacific coast of Tohoku EarthquakeCumulative frequency curves and magnitude-time diagrams from February 1 to April 1 in the areas of (A) Izu, (B) Hakone, (C) northern Chiba prefecture, and (D) southwestern Ibaraki prefecture. The gray zone indicates possible intervals with a higher magnitude threshold.Back to article page