{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Gavin Hayes", "hasEmail": "mailto:ghayes@usgs.gov"}, "description": "In April 2017, a sequence of earthquakes offshore Valpara\u00edso, Chile, raised concerns of a potential megathrust earthquake in the near future. The largest event in the 2017 sequence was a M6.9 on April 24th, seemingly co-located with the last great-sized earthquake in the region\u2014a M8.0 in March 1985. The history of large earthquakes in this region shows significant variation in rupture size and extent, typically highlighted by a juxtaposition of large ruptures interspersed with smaller magnitude sequences. We show that the 2017 sequence ruptured an area between the two main slip patches during the 1985 earthquake, re-rupturing a patch that had previously slipped during the October 1973 M6.5 earthquake sequence. A significant gap in historic ruptures exists directly to the south of the 2017 sequence, with large enough moment deficit to host a great-sized earthquake in the near future, if it is locked.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F71Z439C", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.59a5794ae4b0fa5ae7c7803e.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_59a5794ae4b0fa5ae7c7803e", "keyword": ["EHP", "Earthquake Hazards Program", "GHSC", "Geologic Hazards Science Center", "USGS", "USGS:59a5794ae4b0fa5ae7c7803e", "earth science", "earthquake hazard", "great-sized earthquake", "megathrust earthquake"], "modified": "2020-08-18T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-71.6623287, -33.0835991, -71.5597684, -33.0178165", "theme": ["geospatial"], "title": "2017 Valparaiso, Chile earthquake data"}