{
"DOI": {
"doi": "10.5066/p9jn6h0n",
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"creators": [
{
"name": "Shelly, David R",
"nameType": "Personal",
"givenName": "David R",
"familyName": "Shelly",
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"schemeUri": "https://orcid.org",
"nameIdentifier": "https://orcid.org/0000-0003-2783-5158",
"nameIdentifierScheme": "ORCID"
}
]
}
],
"titles": [
{
"title": "A High-Resolution Seismic Catalog for the Initial 2019 Ridgecrest Earthquake Sequence"
}
],
"publisher": "U.S. Geological Survey",
"container": {},
"publicationYear": 2020,
"subjects": [
{
"subject": "Geophysics, Seismology"
}
],
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"dates": [
{
"date": "2020",
"dateType": "Issued"
}
],
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"descriptions": [
{
"description": "I use template matching and precise relative relocation techniques to develop a high-resolution earthquake catalog for the initial portion of the 2019 Ridgecrest earthquake sequence, from July 4-16, encompassing the foreshock sequence and the first 10+ days of aftershocks following the Mw 7.1 mainshock. Using 13,525 routinely cataloged events as waveform templates, I detect and precisely locate a total of 34,091 events. Precisely located earthquakes reveal numerous cross-cutting fault structures with dominantly perpendicular SW- and NW-strikes. Foreshocks of the Mw 6.4 event appear to align on a NW-striking fault. Aftershocks of the Mw 6.4 event suggest that it further ruptured this NW-striking fault, as well as the SW-striking fault where surface rupture was observed. Finally, aftershocks of the Mw 7.1 show a highly complex distribution, illuminating a primary NW-striking fault zone consistent with surface rupture, but also numerous cross-cutting SW-striking faults. Aftershock relocations suggest that the Mw 7.1 event ruptured adjacent to the previous NW-striking rupture of the Mw 6.4, perhaps activating a subparallel structure southwest of the earlier rupture. Both the NW and SE rupture termini of the Mw 7.1 rupture exhibited multiple-fault branching, with particularly high rates of aftershocks and multiple fault orientations in the dilatational quadrant NE of the NW rupture terminus.",
"descriptionType": "Abstract"
}
],
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"created": "2020-01-02T18:48:35Z",
"registered": "2020-01-02T18:48:37Z",
"published": null,
"updated": "2022-12-06T08:55:47Z"
}
}