Journal article Open Access
Bawden, Gerald W.
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <datafield tag="540" ind1=" " ind2=" "> <subfield code="u">https://creativecommons.org/publicdomain/zero/1.0/legalcode</subfield> <subfield code="a">Creative Commons Zero v1.0 Universal</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">2001-01-10</subfield> </datafield> <controlfield tag="005">20200120172452.0</controlfield> <controlfield tag="001">1231281</controlfield> <datafield tag="909" ind1="C" ind2="O"> <subfield code="p">openaire</subfield> <subfield code="o">oai:zenodo.org:1231281</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a">Coseismic leveling and triangulation observations are used to determine the faulting geometry and slip distribution of the July 21, 1952, Mw 7.3 Kern County earthquake on the White Wolf fault. A singular value decomposition inversion is used to assess the ability of the geodetic network to resolve slip along a multisegment fault and shows that the network is sufficient to resolve slip along the surface rupture to a depth of 10 km. Below 10 km, the network can only resolve dip slip near the fault ends. The preferred source model is a two‐segment right‐stepping fault with a strike of 51° and a dip of 75° SW. The epicentral patch has deep (6–27 km) left‐lateral oblique slip, while the northeastern patch has shallow (1–12.5 km) reverse slip. There is nearly uniform reverse slip (epicentral, 1.6 m; northeast, 1.9 m), with 3.6 m of left‐lateral strike slip limited to the epicentral patch. The seismic moment is M0 = 9.2 ± 0.5 × 1019 N m (Mw = 7.2). The signal‐to‐noise ratio of the leveling and triangulation data is reduced by 96% and 49%, respectively. The slip distribution from the preferred model matches regional geomorphic features and may provide a driving mechanism for regional shortening across the Comanche thrust and structural continuity with the Scodie seismic lineament to the northeast.</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="s">1780309</subfield> <subfield code="z">md5:a2520cb295305789905eaa619e4dcd5b</subfield> <subfield code="u">https://zenodo.org/record/1231281/files/article.pdf</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">publication</subfield> <subfield code="b">article</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="a">Bawden, Gerald W.</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.1029/2000jb900315</subfield> <subfield code="2">doi</subfield> </datafield> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Source parameters for the 1952 Kern County earthquake, California: A joint inversion of leveling and triangulation observations</subfield> </datafield> <datafield tag="650" ind1="1" ind2="7"> <subfield code="a">cc-by</subfield> <subfield code="2">opendefinition.org</subfield> </datafield> </record>
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