October 9, 1257 Earthquake: Sagami Bay, Japan

Date

October 9, 1257

Place

Sagami Bay, Japan

Magnitude

7 (Ms)

Tsunami

Yes: the tsunami it caused

Epicenter

35.200° N, 139.500° E

Country

Japan

Damage

Limited (under about $1 million)

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

• September 1, 1923, Tokyo, Yokohama, JapanM7.9 · 105,385 deaths · $600 million · 695,000 houses destroyed · 11 km
• May 27, 1293, Kamakura, JapanM7.1 · 23,024 deaths · 9 km
• November 11, 1855, Tokyo, JapanM7 · 6,757 deaths · 50,000 houses destroyed · 57 km
• December 30, 1703, Off SW Boso Peninsula, JapanM8.2 · 5,233 deaths · 20,162 houses destroyed · 51 km
• September 20, 1498, Enshunada Sea, JapanM8.3 · 5,000 deaths · 1,000 houses destroyed · 185 km
• October 28, 1707, Enshunada, JapanM8.4 · 2,000 deaths · 10,000 houses destroyed · 198 km
• December 23, 1854, Enshunada Sea, JapanM8.3 · 1,000 deaths · 8,900 houses destroyed · 198 km
• November 4, 1677, Off SE. Boso Peninsula, JapanM7.4 · 500 deaths · 1,001 houses destroyed · 183 km
• November 25, 1930, Idu, Honshu, JapanM7.1 · 259 deaths · 8,099 houses destroyed · 51 km
• September 12, 1495, Kamakura, JapanM7.1 · 200 deaths · 11 km
• July 29, 1649, Tokyo, Japan200 deaths · 56 km
• March 1, 1633, Odawara, JapanM7.1 · 150 deaths · 27 km
• March 11, 1853, Odawara, Japan79 deaths · 33 km
• April 28, 1714, Oomati, Japan56 deaths · 300 houses destroyed · 198 km
• September 13, 1984, Mt Ontake, Central, Honshu, JapanM6.1 · 29 deaths · $43 million · 194 km

Significant earthquakes of 1257The 1200sRecent earthquakes near hereThis day in weather history

Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI earthquake 5939.