翻刻
【右丁】
四月六日朝真田信濃守ゟ差出候御届書
私在所信州松代去月廿四日夜亥刻頃より大地震之義先達て
先御届申上候通り御座候処其後今以相止兼昼夜何ヶ度と
申儀無之折々相震同廿九日朝晦日夕両日に三度強震有之
手遠之村方は相分兼候得共城下町には猶又潰家等も有之
近辺之山上より巌石夥敷崩落且兼て申上置候犀川上手にて
堤留之場所之儀は更級郡之内安庭村山平林両村之
辺に岩倉山と申高山半両端に抜崩一ヶ所は三十町程一ヶ
所は五町程之間川中え押入其辺押埋候村方も有之
然ㇽ処多分巌石之儀に付迚も水勢にて押切兼候様子
後之次第に 湛平水より凡七八丈にも可及夫に付数ヶ村水中に
【左丁】
相成其辺湖水之体に御座候勿論種々手当申付候得とも
大山殊に巌石押入候儀に付人力には何分届兼可申哉且また
川中島平林村之者共は右湛候水何方も一時に押出可申哉
難計と恐怖仕山手え立退罷在丹波島宿等も同様之儀にて
人馬継立等も出来兼申候猶精々手当申付置候得共先此段
御届申上候委細之儀は追々可申上候以上
四月朔日 真田信濃守
越後国頸城郡村々又候大地震に付先御届書
榊原式部大輔
御預所
現代語訳
**【右丁】**
四月六日朝、真田信濃守より差し出された御届書
私の在所である信州松代において、去る月（先月）二十四日の夜、亥の刻（午後十時）頃より大地震があった件につきましては、先日すでにお届け申し上げた通りでございます。その後も今なお揺れが止み難く、昼夜を問わず何度とも言えないほど折々に揺れが続き、同二十九日の朝と晦日（三十日）の夕方の両日に三度の強い地震がございました。手遠（離れた）の村方は詳しく把握しかねますが、城下町においてはさらに潰れた家等もあり、近辺の山の上より巌石（岩石）が夥しく崩れ落ちました。また、かねてよりお申し上げておりました犀川の上手（上流）にて堤のように留まっている箇所についてでございますが、更級郡の内、安庭村・山平林両村の辺りに「岩倉山」と申す高山の両端が抜け崩れ、一か所は三十町ほど、もう一か所は五町ほどの間にわたり川の中へ押し入り、その辺りを押し埋めた村方もございます。しかしながら、大部分が巌石であるため、とても水の勢いで押し切れる様子もなく、後の次第によっては、湛（たた）えた（せき止められた）水が平水より凡（およそ）七、八丈にも及ぶ可能性がございます。それにより数か村が水中に
**【左丁】**
なり、その辺りは湖水のような有様でございます。もちろん種々の手当てを申し付けましたが、大山であり、しかも巌石が押し入った件でございますから、人力ではどうにも及びかねることと思われます。また、川中島・平林村の者どもは、せき止められた水がどこからでも一時に押し出してくるのではないかと計り難く恐れており、山手へ立ち退いております。丹波島宿等も同様の事情にて、人馬の継立（交通・輸送）等もできかねている状況でございます。なお精々（せいぜい）手当てを申し付け置きましたが、まずはこの段をお届け申し上げます。委細の義は追々申し上げます。以上。
四月朔日 真田信濃守
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越後国頸城郡村々にてまたも大地震につき、先御届書
榊原式部大輔
御預所
英語訳
**[Right folio]**
Official notification submitted by Sanada Shinano-no-kami on the morning of the 6th day of the 4th month
Regarding the great earthquake that struck Matsushiro in Shinshū, my home domain, from around the Hour of the Boar (approximately 10 p.m.) on the night of the 24th of last month, I have already submitted a preliminary report as stated previously. Since that time, the tremors have continued without cessation, shaking occurring at various intervals throughout the day and night without any definite count; furthermore, on the morning of the 29th and the evening of the 30th (the last day of the month), there were three strong earthquakes on those two days. Regarding distant villages, we have been unable to ascertain the full details, but within the castle town there have been yet further cases of collapsed houses, and enormous quantities of boulders and rocks have tumbled down from the mountains in the surrounding area. Furthermore, concerning the area along the upper reaches of the Sai River where a blockage has formed — as I had previously reported — at the vicinity of Yasuniwamura and Yamahirabayashi Village in Sarashina District, a high mountain called Iwakurayama has collapsed at both its ends, with debris pushing into the river over a stretch of approximately thirty chō at one point and approximately five chō at another, burying certain villages in the vicinity beneath the debris. However, as the blockage consists predominantly of massive boulders and rocks, it appears impossible for the force of the water alone to break through it. Depending on how events unfold, the water backed up behind the dam could potentially rise to approximately seven or eight jō above normal water level. As a result, several villages have become submerged in water,
**[Left folio]**
and the area has come to resemble a lake. Naturally, we have issued instructions for various relief measures, but as it involves a great mountain and specifically an inrush of massive boulders and rock, it is feared that human effort alone will be wholly insufficient to address it. Moreover, the people of Kawanakajima and Hirabayashi Village live in terror, unable to predict from which direction the pent-up waters may suddenly burst forth all at once, and have evacuated to higher ground in the mountains. Tanbajima-juku and other post stations are in a similar situation, and the relay of people and horses for transportation has become impossible. We have issued the most thorough instructions possible for relief measures, but for now submit this report. Further details will be submitted in due course. Respectfully submitted.
1st day of the 4th month Sanada Shinano-no-kami
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Preliminary report regarding yet another great earthquake affecting villages in Kubiki District, Echigo Province
Sakakibara Shikibu-no-tayū
(Governed territory)