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They have a distinct spectral signature, similar to those observed in glacial and volcanic environments. The tremor sources are located near the injection site and aligned with preexisting faults. Modeling results imply that such tremors are generated by frictional slip on fault. These observations may reveal an important deformation mode, which is useful for studying associated stress, seismicity, and triggering, as well as for tracking fault activities during injection operations of all fluids, including supercritical carbon dioxide.<\/jats:p>","DOI":"10.1126\/science.adh1331","type":"journal-article","created":{"date-parts":[[2023,8,3]],"date-time":"2023-08-03T17:58:51Z","timestamp":1691085531000},"page":"553-558","update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":12,"title":["Tremor signals during fluid injection are generated by fault slip"],"prefix":"10.1126","volume":"381","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8362-4569","authenticated-orcid":true,"given":"Shankho","family":"Niyogi","sequence":"first","affiliation":[{"name":"University of California, Riverside, CA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0557-2839","authenticated-orcid":true,"given":"Abhijit","family":"Ghosh","sequence":"additional","affiliation":[{"name":"University of California, Riverside, CA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abhash","family":"Kumar","sequence":"additional","affiliation":[{"name":"National Energy Technology Laboratory, Pittsburgh, PA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard W.","family":"Hammack","sequence":"additional","affiliation":[{"name":"National Energy Technology Laboratory, Pittsburgh, PA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1029\/GL013i002p00149"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1190\/geo2013-0165.1"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1190\/geo2013-0164.1"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/2017GL073582"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1190\/INT-2018-0078.1"},{"key":"e_1_3_2_7_2","doi-asserted-by":"crossref","unstructured":"A. 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