July 10, 863 Earthquake: Naoetsu, Niigata Prefecture, Japan

Date

July 10, 863

Place

Naoetsu, Niigata Prefecture, Japan

Magnitude

7 (Ms)

Tsunami

Yes: the tsunami it caused

Epicenter

37.100° N, 138.000° E

Country

Japan

Deaths

Many (about 101 to 1,000)

Damage

Severe (about $5 to $25 million)

Houses destroyed

Many (101 to 1,000)

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.

• May 8, 1847, Zenkoji, Nagano, JapanM7.4 · 12,000 deaths · 34,000 houses destroyed · 11 km
• October 27, 1891, Mino-Owari, JapanM8.4 · 7,273 deaths · 142,177 houses destroyed · 199 km
• June 28, 1948, Fukui, JapanM7.3 · 5,131 deaths · $1 billion · 63,000 houses destroyed · 190 km
• September 27, 1611, Aidu, Japan3,700 deaths · 182 km
• May 20, 1751, NW, Honshu, JapanM6.6 · 2,100 deaths · 9,100 houses destroyed · 14 km
• August 2, 887, Niigata, Honshu, JapanM6.5 · 2,000 deaths · 45 km
• February 1, 1666, Takata, Japan1,500 deaths · 11 km
• December 18, 1828, Sandyo IN Etigo, Japan1,443 deaths · 11,750 houses destroyed · 140 km
• January 1, 2024, Ishikawa, Honshu, JapanM7.5 · 549 deaths · $18 billion · 29,966 houses destroyed · 78 km
• April 9, 1858, N, Hida, Japan203 deaths · 709 houses destroyed · 130 km
• October 23, 2004, Niigata Prefecture, Honshu, JapanM6.6 · 68 deaths · $28 billion · 3,175 houses destroyed · 70 km
• April 28, 1714, Oomati, Japan56 deaths · 300 houses destroyed · 67 km
• April 21, 1659, Aidu, Japan39 deaths · 182 km
• June 16, 1964, W Coast, Honshu, JapanM7.6 · 36 deaths · $800 million · 3,557 houses destroyed · 179 km
• September 13, 1984, Mt Ontake, Central, Honshu, JapanM6.1 · 29 deaths · $43 million · 153 km

Significant earthquakes of 863The 800sRecent 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 7342.