mirage

Surficial offsets on the central and eastern garlock fault associated with prehistoric earthquakes

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Surficial offsets on the central and eastern garlock fault associated with prehistoric earthquakes

Show simple item record

dc.contributor.author McGill, Sally F.
dc.contributor.author Sieh, Kerry
dc.date.accessioned 2012-09-05T06:13:31Z
dc.date.available 2012-09-05T06:13:31Z
dc.date.copyright 1991
dc.date.issued 2012-09-05
dc.identifier.citation McGill, S. F., & Sieh, K. (1991). Surficial Offsets on the Central and Eastern Garlock Fault Associated With Prehistoric Earthquakes. Journal of Geophysical Research, 96, 21597–21621.
dc.identifier.issn 0148–0227
dc.identifier.uri http://hdl.handle.net/10220/8467
dc.description.abstract Geomorphic features offset along the central and eastern Garlock fault record the amount of surface slip associated with prehistoric earthquakes. Along the easternmost 90 km of the fault, the smallest offsets cluster around 2–3 m of left-lateral slip, apparently associated with the most recent earthquake on this portion of the fault. Larger offsets along this part of the fault, especially in Pilot Knob Valley, cluster around values consistent with 2–4 m of slip in each of the past several events. Farther west, south of El Paso Mountains, offset geomorphic features suggest that each of the past two earthquakes on this stretch of the Garlock fault was produced by about 7 m of slip, whereas the third event back was produced by about 4 m of slip. Vertical displacements of geomorphic features range from 0% to 30% of the left-lateral offsets. Within Pilot Knob Valley (along the southern side of the Slate Range), vertical displacements are consistently up on the northern side, whereas within the Avawatz Mountains both north- and south-side-up vertical displacements are present. On the basis of the geomorphic offsets, the geometry of the Garlock fault, and the precedents set by historical strike-slip earthquakes elsewhere, a number of different rupture patterns are plausible. These range from rupture of the entire Garlock fault in a single event with a maximum magnitude of about M w =7.8, to separate rupture of the western segment and of the central and eastern segments combined, with approximate magnitudes M w ≤1.1 and M w =7.5, respectively, to separate rupture of even shorter segments, producing earthquakes of magnitudes M w =6.6 to M w =7.5. In conjunction with available slip rates for the Garlock fault, the geomorphic offsets suggest that average recurrence intervals are probably within the range of 600–1200 years south of El Paso Mountains, about 200–750 years in Searles Valley, about 200–1300 years in Pilot Knob Valley, and about 200–3000 years near Leach Lake and in the Avawatz Mountains.
dc.format.extent 21 p.
dc.language.iso en
dc.relation.ispartofseries Journal of geophysical research
dc.rights © 1991 American Geophysical Union. This paper was published in Journal of Geophysical Research and is made available as an electronic reprint (preprint) with permission of American Geophysical Union. The paper can be found at the following official URL: http://dx.doi.org/10.1029/91JB02030. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
dc.subject DRNTU::Science::Geology::Volcanoes and earthquakes.
dc.title Surficial offsets on the central and eastern garlock fault associated with prehistoric earthquakes
dc.type Journal Article
dc.identifier.doi http://dx.doi.org/10.1029/91JB02030
dc.description.version Published version

Files in this item

Files Size Format View
Surficial Offse ... rehistoric Earthquakes.pdf 2.493Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record

Statistics

Total views

All Items Views
Surficial offsets on the central and eastern garlock fault associated with prehistoric earthquakes 486

Total downloads

All Bitstreams Views
Surficial Offsets on the Central and Eastern Garlock Fault Associated With Prehistoric Earthquakes.pdf 206

Top country downloads

Country Code Views
United States of America 96
China 56
Singapore 20
France 4
Russian Federation 4

Top city downloads

city Views
Mountain View 70
Singapore 18
Redwood City 5
Santa Cruz 4
Rancho Cucamonga 3