{"chart":{"slug":"oklahoma-earthquakes-per-year","title":"How many earthquakes does Oklahoma have each year?","takeaway":"Oklahoma had 883 earthquakes of magnitude 3 or more in 2015, after averaging about 1 a year from 1973 to 2008; it had 6 in 2025. USGS scientists link the surge to wastewater from oil and gas production pumped deep underground, and the count fell after Oklahoma limited that injection from 2015.","topic":"Earthquakes","chart_type":"line","ranking":false,"x_label":"Year","y_label":"Earthquakes of magnitude 3 or more in Oklahoma","unit":null,"points_count":53,"source":{"name":"U.S. Geological Survey, ANSS Comprehensive Earthquake Catalog (ComCat)","url":"https://earthquake.usgs.gov/earthquakes/search/"},"license":{"name":"Public domain (U.S. government work); source U.S. Geological Survey","url":"https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits"},"data_as_of":"2025-12-31","updated_at":"2026-09-25T11:40:45.783Z","url":"https://chart.ly/charts/oklahoma-earthquakes-per-year","api_url":"https://chart.ly/api/v1/charts/oklahoma-earthquakes-per-year","csv_url":"https://chart.ly/charts/oklahoma-earthquakes-per-year/data.csv","image_url":"https://chart.ly/charts/oklahoma-earthquakes-per-year/image.png","embed_url":"https://chart.ly/charts/oklahoma-earthquakes-per-year/embed","credit":"U.S. Geological Survey, ANSS Comprehensive Earthquake Catalog (ComCat), via Chartly (https://chart.ly/charts/oklahoma-earthquakes-per-year)","credit_html":"U.S. Geological Survey, ANSS Comprehensive Earthquake Catalog (ComCat), via \u003ca href=\"https://chart.ly/charts/oklahoma-earthquakes-per-year\"\u003eChartly\u003c/a\u003e","average_label":null,"zero_axis":true,"data":[{"label":"1973","value":0},{"label":"1974","value":0},{"label":"1975","value":3},{"label":"1976","value":2},{"label":"1977","value":0},{"label":"1978","value":0},{"label":"1979","value":2},{"label":"1980","value":1},{"label":"1981","value":1},{"label":"1982","value":1},{"label":"1983","value":0},{"label":"1984","value":1},{"label":"1985","value":0},{"label":"1986","value":0},{"label":"1987","value":2},{"label":"1988","value":0},{"label":"1989","value":1},{"label":"1990","value":1},{"label":"1991","value":1},{"label":"1992","value":1},{"label":"1993","value":1},{"label":"1994","value":1},{"label":"1995","value":4},{"label":"1996","value":0},{"label":"1997","value":1},{"label":"1998","value":3},{"label":"1999","value":1},{"label":"2000","value":0},{"label":"2001","value":0},{"label":"2002","value":3},{"label":"2003","value":0},{"label":"2004","value":2},{"label":"2005","value":1},{"label":"2006","value":3},{"label":"2007","value":1},{"label":"2008","value":2},{"label":"2009","value":20},{"label":"2010","value":41},{"label":"2011","value":63},{"label":"2012","value":34},{"label":"2013","value":103},{"label":"2014","value":583},{"label":"2015","value":883},{"label":"2016","value":638},{"label":"2017","value":264},{"label":"2018","value":164},{"label":"2019","value":55},{"label":"2020","value":36},{"label":"2021","value":27},{"label":"2022","value":15},{"label":"2023","value":16},{"label":"2024","value":23},{"label":"2025","value":6}],"annotations":[]},"docs":"https://chart.ly/developers","terms":"Free to use with credit: wherever you show or quote a chart's data, name Chartly with a link to that chart's url (each chart's credit line does both) and credit its source as its license asks.","credit":"U.S. Geological Survey, ANSS Comprehensive Earthquake Catalog (ComCat), via Chartly (https://chart.ly/charts/oklahoma-earthquakes-per-year)"}