歴史地震第35号(2020) 61-66頁
受付日 2019/11/30, 受理日 2020/03/02ᐑᇛ┴ர⌮⏫䠈ᒣඖ⏫䛻䛚䛡䜛᫂἞୕㝣ᆅ㟈䛾ὠἼグ㘓䛸ὠἼ㧗᥎ᐃᰴᘧ఍♫䝟䝇䝁㻌* ▮἟ 㝯Tsunami Records of the Meiji Sanriku Earthquake in Watari Town and Yamamoto Town, Miyagi
Prefecture, and Estimation of Tsunami Heights
Takashi YANUMAPASCO Corporation, Higashiyama Build. 5F 1-1-2, Higashiyama, Meguro-ku,Tokyo, 153-0043 Japan
Tsunami heights of the Meiji Sanriku Earthquake are reported on the Sanriku coast and a part of Hokkaido coast.
“Tohoku Nippo” (newspaper) and “Miyagi-ken-kaisho-shi” reported damage and tsunami inundation depths of theMeiji Sanriku Earthquake in Watari County (present Watari and Yamamoto Towns), located southern end ofMiyagi Prefecture, apart south from Sanriku Coast. Relatively high (up to 5.3 T.P. m) tsunami heights are
estimated at Isohama in the present Yamamoto Town based on the tsunami descriptions in “Tohoku Nippo”.
Keywords: The 1896 Meiji Sanriku Earthquake Tsunami, Miyagi Prefecture, Watari Town, Yamamoto Town.
㼲㻝㻚 䛿䛨䜑䛻㻝㻤㻥㻢 ᖺ䠄᫂἞ 㻞㻥 ᖺ䠅㻢 ᭶ 㻝㻡 ᪥䛻Ⓨ⏕䛧䛯᫂἞୕㝣ᆅ㟈䛻క䛖ὠἼ䛾⑞㊧䛿ྛᆅ䛷グ㘓䛥䜜䛶䛔䜛䛜䠈᪤ 䛾⑞㊧グ㘓㈨ᩱ䛷䛿䠈୕㝣ἢᓊ䛻グ㘓䛜ᒁᅾ䛧䛶䛔䜛䠊䛄᪥ᮏ⿕ᐖὠἼ⥲ぴ䠄➨ 㻞 ∧䠅䛅䠄Ώ㎶㻘㻌㻝㻥㻥㻤䠅䛷䛿䠈ᅜෆ䛾᫂἞୕㝣ᆅ㟈ὠἼ䛾㧗䛥䛸䛧䛶䠈໭ᾏ㐨᪥㧗ᆅ᪉䛛䜙ᐑᇛ┴▼ᕳᕷ▼ᕳ䜎䛷䛾ὠἼ㧗䛜⾲䛸䛧䛶♧䛥䜜䛶䛔䜛䠊䜎䛯䠈ᮾ໭኱Ꮫ䛾䛄ὠἼ⑞㊧䝕䞊䝍䝧䞊䝇䛅䠄ᒾῲ䞉௚䠈㻞㻜㻝㻞䠅୰䛾䠈㻞㻜 ᩥ⊩䛛䜙ᢳฟ䛥䜜䛯᫂἞୕㝣ᆅ㟈ὠἼ䛾⑞㊧グ㘓䛾ศᕸ䜒䠈ᐑᇛ┴▼ᕳᕷ䜢༡㝈䛸䛧䛶䛔䜛䠄ᅗ 㻝䠅䠊᪂⪺䛄ᮾ໭᪥ሗ䛅䠄ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠅䛾グ஦䛻䠈ᐑᇛ┴ர⌮㒆䠄⌧ᅾ䛾ர⌮⏫䠈ᒣඖ⏫䠅䛻䛚䛡䜛᫂἞୕㝣ᆅ㟈ὠἼ䛾ᾐỈ≧ἣ䛜ヲ⣽䛻グ䛥䜜䛶䛚䜚䠈⑞㊧グ㘓䛜ஈ䛧䛔୕㝣ᆅ᪉௨༡䛷䛾㈗㔜䛺グ㘓䛸䛺䜚ᚓ䜛䠊䛣䛣䛷䛿䠈䛄ᮾ໭᪥ሗ䛅䠄ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠅䛾グ஦䛛䜙ர⌮㒆䛻᮶く䛧䛯᫂἞୕㝣ὠἼ䛾グ㘓䜢䠈ྠᵝ䛻ர⌮㒆䛾ὠἼ⿕ᐖ䛾グ㍕䛜䛒䜛䛄ᐑᇛ┴ᾏთㄅ䛅䠄ᐑᇛ┴䠈㻝㻥㻜㻟䠅䛾グ㘓䛸ඹ䛻ᩚ⌮䛧䛯䠊䜎䛯䠈䛄ᮾ໭᪥ሗ䛅䠄ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠅䛾グ஦୰䛷ᐃ㔞ⓗ䛺グ㘓䛜䛒䜛ᒣඖ⏫䛷䛾ὠἼ㧗䜢᥎ᐃ䛧䛯䠊㼲㻞㻚 ᐑᇛ┴ர⌮㒆䛷䛾᫂἞୕㝣ᆅ㟈ὠἼグ㘓ᐑᇛ┴ர⌮㒆䛿ᐑᇛ┴䛾༡➃䛻఩⨨䛧䠈ᾏᓊ㒊䛿໭䛛䜙Ⲩ℈ᮧ䠄ᙜ᫬䠈௨ୗྠ䠅䠈ྜྷ⏣ᮧ䠈ᒣୗᮧ䠈ᆏඖᮧ䛛䜙䛺䜛䠄ᅗ 㻞䠅䠊Ⲩ℈ᮧ䠈ྜྷ⏣ᮧ䛿⌧ᅾ䛾ர⌮⏫䠈ᒣୗᮧ䠈ᆏඖᮧ䛿⌧ᅾ䛾ᒣඖ⏫䛻ྵ䜎䜜䜛䠊ர⌮㒆䛾ᾏᓊ䛿䜋䜌༡໭䛻ఙ䜃䜛◁὾ᾏᓊ䛷䛒䜚䠈᫂἞ᮇ䛻䛚䛔䛶䛿὾ሐ䛾⫼ᚋ䛻㞟ⴠ䛜Ⅼᅾ䛧䛶䛔䛯䠊᫂἞ 㻠㻠 ᖺ䛾ᆅᙧᅗ䛷䛾ᙜ᫬䛾ᆅໃ䜢ᅗ 㻟 䛻♧䛩䠊㻞㻚㻝 䛄ᮾ໭᪥ሗ䛅䠄ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠅䛾グ஦䛄ᮾ໭᪥ሗ䛅䛾᫂἞ 㻞㻥 ᖺ 㻢 ᭶ 㻞㻜 ᪥䛾グ஦䛻䠈䛂ர⌮㒆䛾ᾏთሗ࿌䛃䛸䛧䛶䠈Ⲩ℈ᮧ䠈ᒣୗᮧ䠈ᆏඖᮧ䛾ྛᮧ㛗䛾ሗ࿌䛜ᥖ䛢䜙䜜䛶䛔䜛䠊䛺䛚䠈Ⲩ℈ᮧ䛸ᒣୗᮧ䛾㛫䛻䛿ྜྷ⏣ᮧ䛜䛒䜛䛜䠈ྜྷ⏣ᮧ䛛䜙䛾ሗ࿌䛿ᥖ㍕䛥䜜䛶䛔䛺䛔䠊㻔㻝㻕Ⲩ℈ᮧ䛂ᛣᾧ䛾㧗䛝䛣䛸ซᅄ஬ᑻవ㜿Ṋ㝰ᒣ䜢㐳䜚Ỉୖ䜢ዑὶ䛫䜚౫⪋Ἑᓊ䛻ಀ␃䛩䜛⁺⯪㌿そ䛩䜛䛒䜚ᡈ䛿◁ୖཬሐ㜵䛻ᢲୖ䛢䜙䜜䛯䜛䜒䛾ᩘ䜢㆑䜙䛩ஆཤᖾ䛻◚⯪䛿໚ㄽே␆᛹ᡃஅ䜜䛺䛟䛃䛸䛒䜚䠈㧗䛥䛚䜘䛭 㻠䠈㻡 ᑻ䛾ᛣᾧ䛜㜿Ṋ㝰ᒣ䜢㐳䜚Ỉୖ䜢ዑὶ䛧䠈Ἑᓊ䛻ಀ␃䛩䜛⁺⯪䛜㌿そ䛧◁ୖ䜔ሐ㜵䛻ᢲ䛧ୖ䛢䜙䜜䛯䛜䠈◚ቯ䛿䛧䛺䛛䛳䛯䠊䜎䛯䠈ே␆䛾᛹ᡃ䜒䛺䛛䛳䛯䠊㻔㻞㻕ᒣୗᮧ䛂ᾏỈṤ䛹㑰ෆ䛻౵ධ䛫䛧⏤ሗ࿌䛻᥋䛧༶᫬ฟᙇᐿἣどᐹ䜢㐙䛡䞉䞉ูẁ⿕ᐖ䜒↓䛃䛸䛒䜚䠈ᾐỈ䛿䛧䛯䛜⿕ᐖ䛿↓䛛䛳䛯䠊㻔㻟㻕ᆏඖᮧ䛂ᮏᮧᏐ☾὾୰὾䛾ᒃఫᐙ 㻝㻡 ᡞᾐỈ䛻┦ᡂ䞉䞉䛃䛸䛒䜚䠈䛭䛾ᚋ䠈ྛᡞ䛾ᾐỈ≧ἣ䛜ヲ⣽䛻グ䛥䜜䛶䛔* 䛈153-0043 ᮾி㒔┠㯮༊ᮾᒣ 1-1-2 ᮾᒣ䝡䝹 5䠢㟁Ꮚ䝯䞊䝹: taamku6220 pasco.co.jp- 61 -䜛䠊㻌☾὾ᾏᓊ䠄ᅗ 㻟䠅䛷䛾⿕ᐖ≧ἣ䛿䠈ୗグ䛾䜘䛖䛻グ䛥䜜䛶䛔䜛䠊㻌䞉䛂኱࿴ബ༑㑻ᒃᐙ᳹ୖ஧ᑻ஬ᑍ⛬ୖỈ䛩௒᳹ୖ஬ᑍ௨ୖ◁䜢⨨䛝ཏ䠄䛛䜟䜔䠅୍Ჷὶኻ䛃㻌䞉䛂ⴗཎ※సᒃᐙ᳹ୖ୐ᑍୖỈ䛧䛯䜚ཏ୍Ჷὶኻ䛃㻌䞉䛂㛛㛫⯅ᖹ἞䠈ᫍᏞ୐㑻㈚ᒇᲷ᳹ୖ୍ᑻ஧ᑍୖỈཏ䠍ಶཬ஭ᡞഃ୍ᮏὶኻ䛃㻌䞉䛂኱࿴௒ᮅྜྷᐙୖỈ᳹ୖ୍ᑻ୕ᑍ䛃㻌䞉䛂㛛㛫⯅ᖹ἞㛗ᒇୖỈඵᑍ⛬ྠᮌᑠᒇ୍Ჷ₽䜜䜚䛃㻌䞉䛂㛛㛫⏤ḟ㑻㛗ᒇධỈᅄᑍ⛬䛃㻌䞉䛂ᫍ␃ྜྷᒃᐙ᳹ୖ஧ᑍ䠈ྠ⏤సᒃᐙධỈ୍ᑻ⛬䛃㻌䞉䛂ᫍ༲ྜྷస⟶బྜྷ䛾ᡤ᭷⯪୕⯺◚○䛫䜚ཬ㛛㛫㛗ຓእභྡ䛾ᡤ᭷⯪୐⯺◚ᦆ䛩䛃㻌䜎䛯䠈୰὾ᾏᓊ䠄ᅗ 㻟䠅䛷䛿䛂స㛫బྜྷᡤ᭷䛾⁺⯪୍⯺◚ᦆ䛃䛸䛒䜛䠊㻌㻞㻚㻞㻌 䛄ᐑᇛ┴ᾏთㄅ䛅䠄ᐑᇛ┴䠈㻝㻥㻜㻟䠅䛾グ஦㻌䛂⿕ᐖᆅ䛾ᐇἣ䛃䛸䛧䛶䠈୕㝣ἢᓊ䛾ᮏྜྷ㒆䠈᱈⏕㒆䠈∻㮵㒆䛾≧ἣ䛜㏙䜉䜙䜜䛯ᚋ䠈䛂୕㒆௨እ䛾ᾏୖᬒἣ䛃䛸䛧䛶䠈ᐑᇛ㒆䠈ྡྲྀ㒆䠈ர⌮㒆䛾≧ἣ䛜㏙䜉䜙䜜䛶䛔䜛䠊㻌ர⌮㒆䛻䛴䛔䛶䛿䠈䛄ᮾ໭᪥ሗ䛅䠄ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠅䛸ྠᵝ䛻Ⲩ℈ᮧ䠈ᒣୗᮧ䠈ᆏඖᮧ䛾グ㍕䛜䛒䜛䠊㻌㻔㻝㻕Ⲩ℈ᮧ㻌䛂Ⲩ℈ᮧ䝙᪊䝔䝝ᐙᒇ䞀ᾐ䝃䜫䝸䝅䝰ᾏთ䝜㧗䝃ᅄᑻ௨ୖ䝜䝰䝜୍ᅇ୍ᑻ௨ୖ஧ᑻ௨ୗ䝜䝰䝜஧ᅇく᮶䝉䝸䛃䛸䛒䜚䠈ᐙᒇ䛿ᾐỈ䛧䛺䛛䛳䛯䛜䠈ὠἼ䛾㧗䛥 㻠ᑻ௨ୖ䛾䜒䛾䛜 㻝 ᅇ䠈㻝 ᑻ௨ୖ 㻞 ᑻ௨ୗ䛾䜒䛾䛜 㻞ᅇ᮶く䛧䛯䠊㻌㻔㻞㻕ᒣୗᮧ㻌䛂༑ᩘᡞ䝜ᐙᒇ䞀ᾐ䝅䛃䛸䛒䜛䠊㻌㻔㻟㻕ᆏඖᮧ㻌䛂Ꮠ㡲㈡୍㠃䝙ₚ⁄䝅ᗋୖ䞀ᾐ䝃䝺䝍䝹ᐙᒇභ୐ᡞ◚ᦆ䝉䝷䝺䝍䝹⁺⯚༑ᅄ⯺䜰䝸☾὾䝙䝰஼ከᑡ䝜⿕ᐖ䜰䝸䜻䛃䛸䛒䜛䠊㻌㻌୧⪅䛾グ㘓䜢ྜ䜟䛫䜛䛸䠈Ⲩ℈ᮧ䛷䛿ὠἼ䛾㧗䛥䛜 㻠䠈㻡 ᑻ䠄㻝㻚㻞㻌㼙䡚㻝㻚㻡㻌㼙䠅䛷ᐙᒇ䛾ᾐỈ䛿↓䛧䠈ᒣୗᮧ䛷䛿 㻝㻜 ᩘᡞ䛜ᾐỈ䛧䛯䛜⿕ᐖ䛿↓䛔䛣䛸䛛䜙䠈ᾐỈ῝䛿ప䛛䛳䛯䛸᥎ᐃ䛥䜜䜛䠊㻌ᆏඖᮧ䛷䛿䠈☾὾䛷䛿䛄ᮾ໭᪥ሗ䛅䛜ᐙᒇ䛾ᗋୖᾐỈ䜢ሗ࿌䛧䛶䛔䜛䛾䛻ᑐ䛧䠈䛄ᐑᇛ┴ᾏთㄅ䛅䛷䛿ከᑡ䛾⿕ᐖ䛷䛒䛳䛯䛸䛧䛶䛔䜛䛸䛣䜝䛻ᕪ␗䛜䛒䜛䠊䜎䛯䠈㡲㈡䛾⿕ᐖ≧ἣ䛻䛴䛔䛶䛿䛄ᮾ໭᪥ሗ䛅䛷䛿ゐ䜜䜙䜜䛶䛔䛺䛔䛾䛻ᑐ䛧䠈䛄ᐑᇛ┴ᾏთグ䛅䛷䛿୍㠃䛻ᾐỈ䛧䠈ᗋୖᾐỈᐙᒇ䛜 㻢䠈㻣 ᡞ䛒䛳䛯䛸䛧䛶䛔䜛䠊㻌䛂㡲㈡䛃䛸䛔䛖Ꮠྡ䛻䛴䛔䛶䛄ゅᕝᆅྡ኱㎡඾㻌 㻠㻌ᐑᇛ┴䛅䠄䛂ゅᕝ᪥ᮏᆅྡ኱㎡඾䛃⦅⧩ጤဨ఍䠈㻝㻥㻣㻥䠅䛷ㄪ䜉䛯䛸䛣䜝䠈ᒣඖ⏫䛷䛿㢮ఝ䛾ᑠᏐྡ䛸䛧䛶䠈ᪧᆏඖᮧ䛻ᒓ䛩䜛ᆏඖᮏ㒓䛾䛂㡲㈡❑䛃䠈䛂୰㡲㈡䛃䠈䛂㡲㈡䝜⏣䛃䠈䛂ୗ㡲㈡䝜⏣䛃䠈䛂㉥ᕝ㡲㈡ᯇ䛃䠈ᪧᒣୗᮧ䛻ᒓ䛩䜛㧗℩ᮧ䛾䛂す㡲㈡䛃䠈䛂୰㡲㈡䛃䠈䛂≴㡲㈡䛃䛜グ㍕䛥䜜䛶䛔䜛䛜䠈䛂㡲㈡䛃䛸䛔䛖ᑠᏐྡ䛿ぢ䛔䛰䛫䛺䛛䛳䛯㻚䜎䛯䠈䛄᪥ᮏṔྐᆅྡయ⣔㻌 ➨ᅄᕳ㻌 㻌ᐑᇛ┴䛾ᆅྡ䛅䠄᭷㝈఍♫ᖹซ♫ᆅ᪉㈨ᩱ䝉䞁䝍䞊䠈㻝㻥㻤㻣䠅䛷䛿ᒣඖ⏫䛻䛿䛂㡲㈡䛃䛾グ㍕䛿↓䛛䛳䛯䚹䛄ர⌮䞉ᒣඖ㎰ᆅᾏᓊ≉ᐃ⅏ᐖ᚟ᪧ஦ᴗ䛾ᴫせ䛅䠄㎰ᯘỈ⏘┬䠅䛷䛿ᒣඖ⏫໭㒊䛾ᾏᓊ䜢䛂㡲㈡ᾏᓊ䛃䛸グ㍕䛧䛶䛔䜛䠄ᅗ 㻟䠅䛜䠈䛣䛾ᆅᇦ䛿ᪧᒣୗᮧ䛻䛺䜛䠊ᮏㄽ䛷䛿䛂㡲㈡䛃䛸䛔䛖Ꮠྡ䛾఩⨨䛾≉ᐃ䛿䛷䛝䛺䛛䛳䛯䠊㻌㻞㻚㻟㻌 䛭䛾௚䛾ᩥ⊩㻌ᐑᇛ┴ர⌮㒆ཬ䜃䛭䛾࿘㎶䛾⮬἞య䛻㛵䛩䜛ᩥ⊩䛸䛧䛶䛄ᐑᇛ┴ர⌮㒆ྐ䛅䠄Ώ㎶䠈㻝㻥㻝㻣䠅䠈䛄ᐑᇛ┴ற⌮㒆ᆏඖᮧㄅ䛅䠄⊦⫤ᖾḟ㑻䠈㻝㻥㻞㻡䠅䠈䛄ྡྲྀᕷྐ䛅䠄ྡྲྀᕷྐ⦅⧩ጤဨ఍䠈㻝㻥㻣㻣䠅䠈䛄┦㤿ᕷྐ 㻝䠄㏻ྐ⦅䠅䛅䠄┦㤿ᕷྐ⦅⧩఍䠈㻝㻥㻤㻟䠅䜢᳨⣴䛧䛯䛜䠈᫂἞୕㝣ᆅ㟈ὠἼ䛻㛵䛩䜛グ㍕䛿ぢᙜ䛯䜙䛺䛛䛳䛯䠊㻌㼲㻟㻚㻌 ᒣඖ⏫ᆏඖ☾὾䛷䛾ὠἼ㧗᥎ᐃ㻌ᒣඖ⏫ᆏඖ☾὾䛷䛿䛄ᮾ໭᪥ሗ䛅䠄ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠅䛸䛄ᐑᇛ┴ᾏთㄅ䛅䠄ᐑᇛ┴䠈㻝㻥㻜㻟䠅䛷⿕ᐖ≧ἣ䛾⛬ᗘ䛻ᕪ␗䛜䛒䜛䛜䠈䛄ᮾ໭᪥ሗ䛅䠄ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠅䛾グ஦䛿ᮧ㛗䛛䜙䛾ሗ࿌䛷䛒䜛䛣䛸䛸⿕ᐖᐙᒇ䛾ᒃఫ⪅ྡ䜔ᾐỈ㧗䛥䜎䛷ᥖ䛢䜙䜜䛶䛚䜚ලయⓗ䛷䛒䜛䛣䛸䛛䜙ಙ៰ᛶ䛿㧗䛔䛸ุ᩿䛧䠈☾὾䛻䛚䛡䜛ὠἼ㧗䛾᥎ᐃ䜢⾜䛳䛯䠊䛺䛚䠈᪂⪺グ஦䛻グ㍕䛥䜜䛶䛔䜛⿕ᐖఫᒃ䛾ᒃఫ⪅䛾ጣ䠄኱࿴䠈ⴗཎ䠈㛛㛫䠈ᫍ䠅䛿䠈䛄ர⌮㒆ர⌮⏫䞉ᒣඖ⏫㻌 㻝㻥㻣㻤㻌㻔䝊䞁䝸䞁䛾ఫᏯᆅᅗ㻕䛅䠄᪥ᮏఫᏯᆅᅗฟ∧㻘㻌 㻝㻥㻣㻤䠅䛻ᥖ䛢䜙䜜䛶䛔䜛☾὾䛾ᒃఫ⪅䛾ጣ䛻䜒ከ䛟☜ㄆ䛷䛝䜛䠊㻌グ஦䛻䛒䜛ྛᡞ䛾ヲ⣽䛺఩⨨䛿ᢕᥱ䛷䛝䛺䛛䛳䛯䛯䜑䠈ᆅ┙㧗䛿☾὾䛷䛾௦⾲ⓗ䛺ᆅ┙㧗䜢᥎ᐃ䛧䛶㐺⏝䛧䛯䠊㻌䕔ᆅ┙㧗䛾᥎ᐃ㻌☾὾୍ᖏ䛿ᮾ໭ᆅ᪉ኴᖹὒἈᆅ㟈ὠἼ䛷䜒⿕ᐖ䜢ཷ䛡䠈⌧ᅾ䛿ᖹ䜙䛻ᩚᆅ䛥䜜䛶䛔䜛䠊ᙜ᫬䛾ᆅ┙㧗䜢᥎ᐃ䛩䜛ୖ䛷䠈ධᡭ䛷䛝䛯᭱䜒ྂ䛔㈨ᩱ䛸䛧䛶䠈㻝㻥㻢㻤 ᖺ 㔞䛾䛄㻝㻦㻡㻜㻜㻜 ᅜᅵᇶᮏᅗ䛅䠄ᅜᅵᆅ⌮㝔䠈㻝㻥㻢㻤䠅ᥖ㍕䛾ᶆ㧗Ⅼ䜢ཧ↷䛧䛯㻚㻌ᪧ∧ᆅᙧᅗ䛷☾὾䛾㞟ⴠ䛜䛒䛳䛯࿘㎶䛷䛾ᶆ㧗Ⅼ䛾್䛿 㼀㻚㻼㻚㻞㻌 㼙䠈㻞㻚㻝㻌 㼙 䛷䛒䜛䛣䛸䛛䜙䠈ᆅ┙㧗䜢㼀㻚㻼㻚㻞㻚㻜㻌㼙 䛸䛧䛯䠄ᅗ 㻠䠅䠊㻌- 62 -䕔ᆅ┙䛛䜙䛾㧗䛥䛾᥎ᐃ㻌ఫᒃ⿕ᐖ䛻グ䛥䜜䛶䛔䜛䛂᳹䛃䠄䛯䜛䛝䠅䛿ᒇ᰿䜢ᨭ䛘䜛ᩳ䜑䛾ᮌᮦ䛷䛒䜛䛜䠈᳹䛾㧗䛥䛸䛧䛶䠈䛭䛾ୗ➃䜢ᗋୖ 㻞㻌 㼙 䛸䛧䛯䠊䜎䛯䠈ᗋ䛾㧗䛥䜢 㻜㻚㻡㻌 䡉䛸䛧䛯䠊䜘䛳䛶䛂᳹ୖ䚽ᑍ䛃䛸グ㍕䛥䜜䛶䛔䜛ሙྜ䛿䠈ᾐỈ῝䛿䇿ᆅ┙䛛䜙 㻞㻚㻡㻌 㼙䠇᳹䛛䜙䛾Ỉ఩䇾䛸䛺䜛䠊䜎䛯䠈䛂ධỈ䚽ᑍ䛃䛸グ㍕䛥䜜䛶䛔䜛ሙྜ䛿ᆅ㠃䛛䜙 䛳䛯ᾐỈ῝䠈䛂ୖỈ䚽ᑍ䛃䛸䛸グ㍕䛥䜜䛶䛔䜛ሙྜ䛿ᗋ䛛䜙 䛳䛯ᾐỈ῝䛸ゎ㔘䛧䛯䠊㻌௨ୖ䛾᥎ᐃ್䛻䜘䜚䠈᪂⪺グ஦䛾グ㍕䛛䜙ὠἼ㧗䜢ぢ✚䜒䛳䛯⤖ᯝ䜢⾲ 㻝 䛻♧䛩䠊㻌㻌㼲㻠㻚㻌 䜎䛸䜑㻌ᐑᇛ┴ர⌮㒆䛷䛿䠈Ⲩ℈ᮧ䛷グ㘓䛥䜜䛯ὠἼ㧗䛥㻠䡚㻡 ᑻ䛷䠈ὠἼ㧗䛥䛿┠ど䛷䛒䜛䛸⪃䛘䜙䜜䜛䛯䜑ᩘ್䛾ಙ㢗ᗘ䛿ప䛔䛜䠈㧗䛥 㻝㻌 㼙 ᙉ䛾ὠἼ䛜᮶く䛧䛯䛸᥎ᐃ䛥䜜䜛䠊㻌ᒣୗᮧ䛷䛿ᐙᒇ䜈䛾ᾐỈ䛜⏕䛨䛯䛜⿕ᐖ䛿↓䛛䛳䛯䛣䛸䜘䜚䠈ᗋୗ䛛ᗋୖഹ䛛䛾ᾐỈ䛷䛿䛺䛛䛳䛯䛛䛸᥎ᐃ䛥䜜䜛䠊㻌ᆏඖᮧ䛷䛿䠈ᐙᒇ䛾ᒇ᰿䛻⮳䜛ᾐỈ䛜⏕䛨䛯䠊ᾐỈ῝䛾ᐃ㔞ⓗ䛺グ㘓䛛䜙䠈ὠἼ㧗䛿᭱኱ 㼀㻚㻼㻚㻌㻡㻚㻟㻌㼙䛷䛒䛳䛯䛸⪃䛘䜙䜜䜛䠊㻌䛄ᮾ໭᪥ሗ䛅䠄ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠅䛷䛾ர⌮㒆㛗䛾グ㘓䛷䛿䠈ர⌮㒆䜈䛾ὠἼ䛾᮶く䛿༗ᚋ 㻝㻜 ᫬㡭䛸䛺䛳䛶䛔䜛䠊ᾏୖಖᏳᗇᾏὒ᝟ሗ㒊 㻴㻼 䛾₻ộ᥎⟬ᶵ⬟䛷䛿䠈ᙜ᪥ 㻞㻞 ᫬䛾₻఩䛿᭱పỈ㠃ୖ 㻝㻚㻜㻣㻌㼙 䛸䛺䜛䠊䛄ᖹᆒỈ㠃䠈᭱㧗Ỉ㠃㻌 ཬ䜃㻌 ᭱పỈ㠃୍ぴ⾲䛅䠄ᾏୖಖᏳᗇᾏὒ᝟ሗ㒊䠈㻞㻜㻝㻥䠅䛻䜘䜛䛸䠈┦㤿䛷䛿䠈᭱పỈ㠃䛿 㼀㻚㻼㻚ୗ 㻜㻚㻤㻣㻌 䡉䛺䛾䛷䠈㻞㻞 ᫬䛾₻఩䛿 㼀㻚㻼㻚㻗㻜㻚㻞㻌 㼙 䛸䛺䜛䠊䜘䛳䛶䠈ᆏඖᮧ䠄⌧ᅾ䛾ᒣඖ⏫ᆏඖ䠅䛷䛿ᾏ㠃䛾ୖ᪼㔞䜒᭱኱䛷 㻡㻚㻝㻌 㼙 䛷䛒䛳䛯䛸ぢ✚䜒䜙䜜䜛䠊㻌ㅰ㎡㻌༏ྡ䛾ᰝㄞ⪅䛾᪉䠈⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ䛾⾜㇂㻌భ୍Ặ䛻䛿䠈ㄽᩥ䛾ᰯṇ䠈ෆᐜ䛻⮳䜛䜎䛷ᴟ䜑䛶᭷┈䛺䛤ពぢ䜢㡬䛝䜎䛧䛯䚹ᐑᇛ┴බᩥ᭩㤋䛾ᯇᒸ㻌♸ஓẶ䛻䛿䠈ᮏ◊✲䜢㐍䜑䜛䛻䛒䛯䜚䠈኱ኚ᭷┈䛺♧၀䜢㡬䛝䜎䛧䛯䠊䜎䛯䠈ᅜᅵᆅ⌮㝔䛾ᪧ∧ᆅᙧᅗ䠈ᅜᅵᇶᮏᅗ䜢㈨ᩱཬ䜃⫼ᬒ䛸䛧䛶౑䜟䛫䛶㡬䛝䜎䛧䛯䚹グ䛧䛶ឤㅰ⮴䛧䜎䛩䠊㻌㻌ᑐ㇟ᆅ㟈䠖㻝㻤㻥㻢 ᖺ᫂἞୕㝣ᆅ㟈㻌ᩥ㻌 ⊩㻌⊦⫤ᖾḟ㑻䠈㻝㻥㻞㻡䠈ᐑᇛ┴ற⌮㒆ᆏඖᮧㄅ䠈㻤㻢㼜㼜䠊㻌ᒾῲὒᏊ㻘㻌 ᮡ㔝ⱥ἞㻘㻌 ௒ᮧᩥᙪ㻘㻌 㒔ྖ჆ᐉ㻘㻌 ᯇᒸ♸ஓ㻘㻌 ௒஭೺ኴ㑻㻘㻌 㤳⸨ఙኵ䠈㻞㻜㻝㻞䠈ಙ㢗ᗘ䜢⪃៖䛧䛯ὠἼ⑞㊧䝕䞊䝍䝧䞊䝇䛾ᵓ⠏䠈ᅵᮌᏛ఍ㄽᩥ㞟 㻮㻞䠄ᾏᓊᕤᏛ䠅䠈㻢㻤㻔㻞㻕䠈㼜㻚㻌㻵㼋㻝㻟㻞㻢㻙㻵㼋㻝㻟㻟㻜㻚㻌䛂ゅᕝ᪥ᮏᆅྡ኱㎡඾䛃⦅㞟ጤဨ఍䠈㻝㻥㻣㻥䠈ゅᕝ᪥ᮏᆅྡ኱㎡඾㻌 㻠㻌 ᐑᇛ┴䠈ᰴᘧ఍♫ゅᕝ᭩ᗑ䠈㻝㻜㻜㻢㼜㼜㻚㻌ᾏ ୖ ಖ Ᏻ ᗇ ᾏ ὒ ᝟ ሗ 㒊 䠈 ₻ ộ ᥎ ⟬ 䠈㼔㼠㼠㼜㼟㻦㻛㻛㼣㼣㼣㻝㻚㼗㼍㼕㼔㼛㻚㼙㼘㼕㼠㻚㼓㼛㻚㼖㼜㻛㻷㻭㻺㻷㼅㻻㻛㼀㻵㻰㻱㻛㼠㼕㼐㼑㼋㼜㼞㼑㼐㻛㻞㻚㼔㼠㼙㻌ᾏୖಖᏳᗇᾏὒ᝟ሗ㒊䠈㻞㻜㻝㻥䠈ᖹᆒỈ㠃䠈᭱㧗Ỉ㠃㻌ཬ 䜃 㻌 ᭱ ప Ỉ 㠃 ୍ ぴ ⾲ 䠈㼔㼠㼠㼜㼟㻦㻛㻛㼣㼣㼣㻝㻚㼗㼍㼕㼔㼛㻚㼙㼘㼕㼠㻚㼓㼛㻚㼖㼜㻛㻷㻭㻺㻷㼅㻻㻛㼀㻵㻰㻱㻛㼐㼍㼠㼡㼙㻛㼕㼚㼐㼑㼤㻚㼜㼐㼒㻌ᅜᅵᆅ⌮㝔䠈㻝㻥㻢㻤䠈㻝㻦㻡㻜㻜㻜 ᅜᅵᇶᮏᅗ㻌ᐑᇛ┴䠈㻝㻥㻜㻟䠈ᐑᇛ┴ᾏთㄅ䠈㻠㻞㻡㼜㼜㻚㻌ྡྲྀᕷྐ⦅⧩ጤဨ఍䠈㻝㻥㻣㻣䠈ྡྲྀᕷྐ䠈㻥㻢㻝㼜㼜䠊㻌᪥ᮏఫᏯᆅᅗฟ∧䠈㻝㻥㻣㻤䠈ர⌮㒆ர⌮⏫䞉ᒣඖ⏫㻌㻝㻥㻣㻤㻌㻔䝊䞁䝸䞁䛾ఫᏯᆅᅗ㻕㻌 䠈㻝㻜㻤㻙㻝㻝㻜㻚㻌㎰ᯘỈ⏘┬ᮾ໭ᆅ᪉㎰ᨻᒁ䠈ர⌮䞉ᒣඖ㎰ᆅᾏᓊ≉ ᐃ ⅏ ᐖ ᚟ ᪧ ஦ ᴗ 䛾 ᴫ せ 䠈㼔㼠㼠㼜㼟㻦㻛㻛㼣㼣㼣㻚㼙㼍㼒㼒㻚㼓㼛㻚㼖㼜㻛㼠㼛㼔㼛㼗㼡㻛㼚㼛㼡㼟㼛㼚㻛㼗㼛㼗㼡㼑㼕㻛㼟㼑㼚㼐㼍㼕㼔㼕㼓㼍㼟㼕㻛㼜㼐㼒㻛㼗㼍㼕㼓㼍㼚㼋㼣㼍㼠㼍㼞㼕㼥㼍㼙㼍㼙㼛㼠㼛㻝㻚㼜㼐㼒㻌 㻌┦ 㤿 ᕷ ྐ ⦅ ⧩ ఍ 䠈㻝㻥㻤㻟 䠈 ┦ 㤿 ᕷ ྐ 㻝 䠄 ㏻ ྐ ⦅ 䠅 䠈㻝㻞㻝㻥㼜㼜䠊㻌ᮾ໭᪥ሗ♫䠈㻝㻤㻥㻢䠈ᮾ໭᪥ሗ䠊㻌᭷㝈఍♫ᖹซ♫ᆅ᪉㈨ᩱ䝉䞁䝍䞊䠈㻝㻥㻤㻣䠈᪥ᮏṔྐᆅྡయ⣔➨ᅄᕳ㻌 ᐑᇛ┴䛾ᆅྡ䠈ᰴᘧ఍♫ᖹซ♫䠈㻤㻜㻝㼜㼜㻚㻌Ώ㎶೧ኵ䠈㻝㻥㻥㻤䠈᪥ᮏ⿕ᐖὠἼ⥲ぴ䠷➨ 㻞 ∧䠹䠈ᮾி኱Ꮫฟ∧఍䠈㻞㻟㻢㻌㼜㼜㻚㻌Ώ㎶⩏㢷䠈㻝㻥㻝㻣䠈ᐑᇛ┴ர⌮㒆ྐ䠈㻡㻜㻢㼜㼜㻚㻌- 63 -

ᅗ 1㻌 ᫂἞୕㝣ᆅ㟈䛾ὠἼ⑞㊧Ⅼ䠄䛄ὠἼ⑞㊧䝕䞊䝍䝧䞊䝇䛅䠄ᒾῲ䞉௚䠈2012䠈⑞㊧䝕䞊䝍䛿 2019 ᖺ 9 ᭶24 ᪥ཷಙ䠅Fig.1㻌 Tsunami trace points of Meiji Sanriku Earthquake(Iwabuchi et.al, 2012, trace data is received in September
24th, 2019.).

Watari County㻌㻌㻌㻌IshinomakiSendaiᅗ 2㻌 ர⌮㒆䛸Ⲩ὾ᮧ䠈ᒣୗᮧ䠈ᆏඖᮧ䛾఩⨨䠊㒆䞉ᮧቃ⏺⥺䛿ᪧ∧ᆅᅗ䜘䜚ྲྀᚓ䠊ᅗ୰ᅄゅᯟ䛿䠈ᅗ 3 䛾⠊ᅖ䜢♧䛩䚹Fig.2㻌 Location of Watari County andArahama Village, Yamashita Village andSakamoto Village. Boundaries of county
and villages are got from Topographic
Maps of Meiji era. A rectangle drawn on
the figure shows the extent of Fig.3.

Watari County
WatariArahama Village
Yoshida Village
Yamashita Village
Sakamoto Village
Sakamoto
Abukuma Riv.

- 64 -㻌㻌㻌㻌Suka Coast

NakahamaIsohamaᅗ 3㻌 ᅜᅵᆅ⌮㝔ᪧ∧ᆅᅗ䠄1:50,000 ᆅᙧᅗ䛂ゅ⏣䛃䠈᫂἞ 41 ᖺ ᅗ䞉ྠ 44 ᖺⓎ⾜䠅䛻䜘䜛ᒣୗᮧ䛸ᆏඖᮧ䛾ᆅໃ䛸☾὾䠈୰὾䠈㡲㈡ᾏᓊ䛾ሙᡤ䠊ᅗ୰ᅄゅᯟ䛿䠈ᅗ 4(a)䛾⠊ᅖ䜢♧䛩䚹
Fig.3㻌 Geographical features of Yamashita Village
and Sakamoto Village and the location of Isohama,
Nakahama and Suka Coast shown on theTopographic Map of Meiji era(published in 1911
by Geospatial Information Authority of Japan). A
rectangle drawn on the figure shows the extent ofFig.4(a).

- 65 -㻌㻌(a)㻌㻌
Extentof Fig.4 (b)㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌(b)㻌㻌ᅗ 㻠㻔㼍㻕㻌 㻌 ᅜᅵᆅ⌮㝔ᪧ∧ᆅᅗ䠄㻝㻦㻡㻜㻘㻜㻜㻜 ᆅᙧᅗ䛂ゅ⏣䛃䠈᫂἞ 㻠㻝 ᖺ ᅗ䞉ྠ 㻠㻠 ᖺⓎ⾜䠅䛷䛾ᅗ 㻠㻔㼎㻕䛾⠊ᅖ䠊㻔㼎㻕㻌 ᅜᅵᆅ⌮㝔ᅜᅵᇶᮏᅗ䠄㻝㻦㻡㻘㻜㻜㻜䛂㻵㼄㻙㻯㻳㻥㻠䛃䠈㻝㻥㻢㻤 ᖺ 㔞䠅䛷䛾☾὾䛾ᆅ┙㧗䠊㻌㻲㼕㼓㻚㻠㻔㼍㻕㻌㼀㼔㼑㻌㼑㼤㼠㼑㼚㼠㻌㼛㼒㻌㻲㼕㼓㻚㻠㻔㼎㻕㻌㼛㼚㻌㼠㼔㼑㻌㼀㼛㼜㼛㼓㼞㼍㼜㼔㼕㼏㻌㻹㼍㼜㻌㼛㼒㻌㻹㼑㼕㼖㼕㻌㼑㼞㼍㻔㼜㼡㼎㼘㼕㼟㼔㼑㼐㻌㼕㼚㻌㻝㻥㻝㻝㻌㼎㼥㻌㻳㼑㼛㼟㼜㼍㼠㼕㼍㼘㻌㻵㼚㼒㼛㼞㼙㼍㼠㼕㼛㼚㻌㻭㼡㼠㼔㼛㼞㼕㼠㼥㻌㼛㼒㻌㻶㼍㼜㼍㼚㻕㻚㻌㻔㼎㻕㻌 㻱㼘㼑㼢㼍㼠㼕㼛㼚㻌㼛㼒㻌㻵㼟㼛㼔㼍㼙㼍㻌㼛㼚㻌㼠㼔㼑㻌㻺㼍㼠㼕㼛㼚㼍㼘㻌㼘㼍㼞㼓㼑㻌㻿㼏㼍㼘㼑㻌㻹㼍㼜㻌㻔㼟㼡㼞㼢㼑㼥㼑㼐㻌㼕㼚㻌㻝㻥㻢㻤㻌㼎㼥㻌㻳㼑㼛㼟㼜㼍㼠㼕㼍㼘㻌㻵㼚㼒㼛㼞㼙㼍㼠㼕㼛㼚㻌㻭㼡㼠㼔㼛㼞㼕㼠㼥㻌㼛㼒㻌㻶㼍㼜㼍㼚㻕㻚㻌㻌㻌⾲ 㻝㻌 ᆏඖᮧ䠄⌧ᒣඖ⏫䠅☾὾䛷䛾ὠἼ㧗㻌㼀㼍㼎㼘㼑㻚㻝㻌㼀㼟㼡㼚㼍㼙㼕㻌㼔㼑㼕㼓㼔㼠㼟㻌㼍㼠㻌㻵㼟㼛㼔㼍㼙㼍㻘㻌㻿㼍㼗㼍㼙㼠㼛㻌㼂㼕㼘㼘㼍㼓㼑㻌㻔㼜㼞㼑㼟㼑㼚㼠㻌㼅㼍㼙㼍㼙㼛㼠㼛㻌㼀㼛㼣㼚㻕㻌㻌᳹䛛䜙䛾㧗䛥㻌 ᗋ䛛䜙䛾㧗䛥㻌ᾐỈ῝ᆅ┙㧗ὠἼ㧗㻌ᐙᒇグ஦㻴㼑㼕㼓㼔㼠㻌㼒㼞㼛㼙㻌 㻴㼑㼕㼓㼔㼠㻌㼒㼞㼛㼙㻌 ,QXQGDWLRQ *URXQG 7VXQDPL㻌+RXVH
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䇷
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2.7

4.7

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0.4

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2.9

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0.2

0.1
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4.9

0.7

2.7

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0.1

2.1

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2.6

4.6

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0.3

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ὀ䠖ᑻ䠈ᑍ䜢㼙 䛻᥮⟬䛩䜛䛻䛿㻔ᑻ䠇ᑍ㽢㻜㻚㻝㻕㽢㻜㻚㻟㼙 䛸䛧䚸ᑠᩘⅬ➨ 㻞 ᱆䜢ᅄᤞ஬ධ䛧䛯䚹- 66 -2