{"entity":{"iso2":"US","iso3":"USA","name":"United States","slug":"united-states"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"number-of-tsunamis","source":"National Geophysical Data Center / World Data Service (2025) \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/number-of-tsunamis","title":"Number of tsunamis","unit":"events"},"observations":[{"date":"1700-01-01","value":1.0},{"date":"1788-01-01","value":2.0},{"date":"1811-01-01","value":1.0},{"date":"1812-01-01","value":1.0},{"date":"1820-01-01","value":1.0},{"date":"1840-01-01","value":1.0},{"date":"1845-01-01","value":1.0},{"date":"1853-01-01","value":1.0},{"date":"1854-01-01","value":2.0},{"date":"1855-01-01","value":1.0},{"date":"1856-01-01","value":1.0},{"date":"1862-01-01","value":1.0},{"date":"1865-01-01","value":1.0},{"date":"1868-01-01","value":2.0},{"date":"1869-01-01","value":2.0},{"date":"1872-01-01","value":2.0},{"date":"1873-01-01","value":1.0},{"date":"1874-01-01","value":1.0},{"date":"1878-01-01","value":2.0},{"date":"1880-01-01","value":2.0},{"date":"1883-01-01","value":1.0},{"date":"1886-01-01","value":1.0},{"date":"1891-01-01","value":1.0},{"date":"1894-01-01","value":1.0},{"date":"1895-01-01","value":1.0},{"date":"1899-01-01","value":2.0},{"date":"1900-01-01","value":1.0},{"date":"1901-01-01","value":1.0},{"date":"1903-01-01","value":1.0},{"date":"1905-01-01","value":1.0},{"date":"1906-01-01","value":1.0},{"date":"1907-01-01","value":1.0},{"date":"1908-01-01","value":1.0},{"date":"1909-01-01","value":1.0},{"date":"1910-01-01","value":1.0},{"date":"1917-01-01","value":1.0},{"date":"1919-01-01","value":1.0},{"date":"1925-01-01","value":2.0},{"date":"1927-01-01","value":2.0},{"date":"1929-01-01","value":1.0},{"date":"1930-01-01","value":1.0},{"date":"1936-01-01","value":1.0},{"date":"1938-01-01","value":2.0},{"date":"1944-01-01","value":1.0},{"date":"1946-01-01","value":1.0},{"date":"1949-01-01","value":3.0},{"date":"1951-01-01","value":2.0},{"date":"1952-01-01","value":4.0},{"date":"1953-01-01","value":3.0},{"date":"1954-01-01","value":1.0},{"date":"1957-01-01","value":1.0},{"date":"1958-01-01","value":1.0},{"date":"1964-01-01","value":2.0},{"date":"1965-01-01","value":4.0},{"date":"1967-01-01","value":1.0},{"date":"1970-01-01","value":1.0},{"date":"1971-01-01","value":1.0},{"date":"1972-01-01","value":1.0},{"date":"1975-01-01","value":1.0},{"date":"1979-01-01","value":1.0},{"date":"1980-01-01","value":1.0},{"date":"1986-01-01","value":1.0},{"date":"1987-01-01","value":2.0},{"date":"1988-01-01","value":1.0},{"date":"1989-01-01","value":3.0},{"date":"1991-01-01","value":1.0},{"date":"1992-01-01","value":1.0},{"date":"1994-01-01","value":3.0},{"date":"1996-01-01","value":2.0},{"date":"2003-01-01","value":2.0},{"date":"2005-01-01","value":1.0},{"date":"2006-01-01","value":1.0},{"date":"2007-01-01","value":1.0},{"date":"2008-01-01","value":2.0},{"date":"2009-01-01","value":2.0},{"date":"2011-01-01","value":2.0},{"date":"2013-01-01","value":2.0},{"date":"2014-01-01","value":2.0},{"date":"2015-01-01","value":2.0},{"date":"2017-01-01","value":1.0},{"date":"2018-01-01","value":3.0},{"date":"2019-01-01","value":1.0},{"date":"2020-01-01","value":4.0},{"date":"2021-01-01","value":1.0},{"date":"2022-01-01","value":1.0},{"date":"2023-01-01","value":2.0},{"date":"2024-01-01","value":3.0}],"summary":{"latest_period":"2024-01-01","latest_value":3.0,"max":4.0,"mean":1.50575,"min":1.0,"of":38,"rank":2,"trend":"volatile"}}