December 30, 1703 Tsunami: Off SW Boso Peninsula, Japan

Reference #414:

December 31, 1703, about 2:00 local time. The tsunami which arose after the earthquake was observed from the Sanriku Coast to the Kii Peninsula and on the Bonin islands. There were dead and injured on the Sanriku Coast. The tsunami was especially strong on the coast of Chiba Prefecture, where it caused great destruction, and on the northwestern shore of Sagami Gulf. The tsunami caused numerous human victims in Chiba Prefecture on the eastern shore of the Boso Peninsula (Kujukuri Region), on a stretch of about 400 km... The source of the earthquake and tsunami apparently was situated to the southeast of the Boso Peninsula. Some settlements suffered not only from this earthquake and tsunami, but also from the large fires which broke out as a result of the shocks. An especially large fire broke out at Odawara. In Kanagawa and Shizuoka Prefectures, in all, 8,007 homes were destroyed, 563 homes burned down, and 2,291 people died (the ulk of the data apply to Kanagawa Prefecture).

In all, according to official data, 20,162 homes suffered damage and 5,233 people died in the country as a result of the seismic shocks, the tsunami, and the fires.

Reference #150:

Dec 31, 1703. Damaged area : Sagami Bay coast, Oshima, Hachijo Is and Atami. Several km dried up in East coast of Boso Penin. 5,233 deaths. 20,162 houses destroyed.

Reference #1897:

Dec. 30, 1703. Sea waves on the coast of Sagami, Awa, and Kazusa; four waves counted.

Reference #13909:

The tsunami also caused significant damage in the Boso Peninsula, with more than 6000 victims. The total casualties is estimated to be at least 10,000.

Reference #13912 lists tsunamis hitting mainly along the coast of the Boso Peninsula and Sagami Bay, and it is estimated that more than 6,500 people were killed, especially on the Boso Peninsula. Overall, the earthquake motion and tsunami caused more than 10,000 deaths and other damage.