The extent corresponds to the parts colored in dark blue, blue and light blue in the right figure, and covers the entire area of Osaka prefecture, the southern part of Hyogo Prefecture, the southern part of Kyoto Prefecture, the northern part and part of the southern part of Nara Prefecture, the southern part and part of the northern part of Shiga Prefecture, Hashimoto City, Iwade City, Katsuragi Town and Kudoyama Town in Wakayama Prefecture and Nabari City in Mie Prefecture, with a population of about 18.64 million people.
範囲は、右上の図の紺色・青色・水色部分に相当し、大阪府全域、兵庫県南部、京都府南部、奈良県北部および南部の一部、滋賀県南部および北部の一部、和歌山県の橋本市・岩出市・かつらぎ町・九度山町、三重県の名張市に及び、人口は約1864万人。