{"entity":{"iso2":"US","iso3":"USA","name":"United States","slug":"united-states"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"significant-earthquakes","source":"National Geophysical Data Center / World Data Service (2025) \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/significant-earthquakes","title":"Number of significant earthquakes","unit":"events"},"observations":[{"date":"1500-01-01","value":1.0},{"date":"1668-01-01","value":1.0},{"date":"1700-01-01","value":1.0},{"date":"1727-01-01","value":1.0},{"date":"1755-01-01","value":1.0},{"date":"1788-01-01","value":2.0},{"date":"1792-01-01","value":1.0},{"date":"1806-01-01","value":1.0},{"date":"1811-01-01","value":2.0},{"date":"1812-01-01","value":4.0},{"date":"1817-01-01","value":1.0},{"date":"1820-01-01","value":1.0},{"date":"1836-01-01","value":1.0},{"date":"1838-01-01","value":1.0},{"date":"1839-01-01","value":1.0},{"date":"1840-01-01","value":1.0},{"date":"1851-01-01","value":2.0},{"date":"1852-01-01","value":1.0},{"date":"1853-01-01","value":1.0},{"date":"1854-01-01","value":3.0},{"date":"1855-01-01","value":3.0},{"date":"1856-01-01","value":1.0},{"date":"1857-01-01","value":1.0},{"date":"1858-01-01","value":1.0},{"date":"1859-01-01","value":1.0},{"date":"1861-01-01","value":1.0},{"date":"1862-01-01","value":1.0},{"date":"1865-01-01","value":3.0},{"date":"1866-01-01","value":1.0},{"date":"1868-01-01","value":3.0},{"date":"1869-01-01","value":2.0},{"date":"1871-01-01","value":3.0},{"date":"1872-01-01","value":3.0},{"date":"1873-01-01","value":1.0},{"date":"1877-01-01","value":1.0},{"date":"1878-01-01","value":2.0},{"date":"1879-01-01","value":1.0},{"date":"1880-01-01","value":2.0},{"date":"1884-01-01","value":3.0},{"date":"1886-01-01","value":1.0},{"date":"1891-01-01","value":1.0},{"date":"1892-01-01","value":2.0},{"date":"1895-01-01","value":2.0},{"date":"1898-01-01","value":3.0},{"date":"1899-01-01","value":4.0},{"date":"1900-01-01","value":2.0},{"date":"1901-01-01","value":2.0},{"date":"1902-01-01","value":3.0},{"date":"1903-01-01","value":1.0},{"date":"1904-01-01","value":1.0},{"date":"1905-01-01","value":1.0},{"date":"1906-01-01","value":3.0},{"date":"1907-01-01","value":2.0},{"date":"1908-01-01","value":2.0},{"date":"1909-01-01","value":2.0},{"date":"1911-01-01","value":1.0},{"date":"1912-01-01","value":1.0},{"date":"1915-01-01","value":2.0},{"date":"1916-01-01","value":2.0},{"date":"1917-01-01","value":1.0},{"date":"1918-01-01","value":1.0},{"date":"1921-01-01","value":1.0},{"date":"1922-01-01","value":1.0},{"date":"1923-01-01","value":1.0},{"date":"1925-01-01","value":3.0},{"date":"1926-01-01","value":1.0},{"date":"1927-01-01","value":3.0},{"date":"1929-01-01","value":3.0},{"date":"1930-01-01","value":1.0},{"date":"1932-01-01","value":3.0},{"date":"1933-01-01","value":1.0},{"date":"1934-01-01","value":2.0},{"date":"1935-01-01","value":2.0},{"date":"1938-01-01","value":1.0},{"date":"1940-01-01","value":3.0},{"date":"1941-01-01","value":1.0},{"date":"1944-01-01","value":1.0},{"date":"1946-01-01","value":2.0},{"date":"1947-01-01","value":1.0},{"date":"1948-01-01","value":1.0},{"date":"1949-01-01","value":2.0},{"date":"1951-01-01","value":2.0},{"date":"1952-01-01","value":3.0},{"date":"1954-01-01","value":4.0},{"date":"1955-01-01","value":1.0},{"date":"1957-01-01","value":3.0},{"date":"1958-01-01","value":1.0},{"date":"1959-01-01","value":1.0},{"date":"1961-01-01","value":1.0},{"date":"1962-01-01","value":2.0},{"date":"1964-01-01","value":1.0},{"date":"1965-01-01","value":4.0},{"date":"1969-01-01","value":1.0},{"date":"1970-01-01","value":1.0},{"date":"1971-01-01","value":3.0},{"date":"1972-01-01","value":1.0},{"date":"1973-01-01","value":2.0},{"date":"1975-01-01","value":4.0},{"date":"1978-01-01","value":1.0},{"date":"1979-01-01","value":2.0},{"date":"1980-01-01","value":5.0},{"date":"1981-01-01","value":1.0},{"date":"1983-01-01","value":4.0},{"date":"1984-01-01","value":2.0},{"date":"1986-01-01","value":5.0},{"date":"1987-01-01","value":5.0},{"date":"1988-01-01","value":1.0},{"date":"1989-01-01","value":3.0},{"date":"1990-01-01","value":1.0},{"date":"1991-01-01","value":2.0},{"date":"1992-01-01","value":5.0},{"date":"1993-01-01","value":2.0},{"date":"1994-01-01","value":5.0},{"date":"1995-01-01","value":1.0},{"date":"1996-01-01","value":2.0},{"date":"1999-01-01","value":1.0},{"date":"2000-01-01","value":1.0},{"date":"2001-01-01","value":2.0},{"date":"2002-01-01","value":3.0},{"date":"2003-01-01","value":5.0},{"date":"2004-01-01","value":1.0},{"date":"2005-01-01","value":2.0},{"date":"2006-01-01","value":1.0},{"date":"2007-01-01","value":6.0},{"date":"2008-01-01","value":4.0},{"date":"2010-01-01","value":3.0},{"date":"2011-01-01","value":7.0},{"date":"2013-01-01","value":2.0},{"date":"2014-01-01","value":6.0},{"date":"2015-01-01","value":1.0},{"date":"2016-01-01","value":2.0},{"date":"2018-01-01","value":4.0},{"date":"2019-01-01","value":2.0},{"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":1.0},{"date":"2024-01-01","value":1.0}],"summary":{"latest_period":"2024-01-01","latest_value":1.0,"max":7.0,"mean":2.02174,"min":1.0,"of":97,"rank":21,"trend":"volatile"}}