Results 101 to 110 of about 9,577 (155)
Hypocenter for the 1979 Imperial Valley Earthquake
Geophysical Research Letters, 1982 Using P‐and S‐wave arrival times with the laterally varying P‐wave velocity structure derived from analysis of a refraction survey of the Imperial Valley, a hypocenter is ascertained for the October 15, 1979, Imperial Valley earthquake:Latitude 32° 39.50′N,Longitude 115° 19.80′W,Depth 8.0 km,Time 23:16:54.40 GMT.
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Numerical investigation of dilatancy biasing of hypocenter locations
Geophysical Research Letters, 1975 We assume that a dilatant zone which develops as a precursor to an earthquake may be modeled by a zone of low‐velocity rock having the shape of a triaxial ellipsoid. For varying ellipsoid dimensions, velocity contrasts, and hypocenter distributions, we generate a synthetic data set of arrival times at surface stations.
Chee Wu, Robert S. Crosson
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Geodetic Observations of Weak Determinism in Rupture Evolution of Large Earthquakes. [PDF]
, 2018 The moment evolution of large earthquakes is a subject of fundamental interest to both basic and applied seismology. Specifically, an open problem is when in the rupture process a large earthquake exhibits features dissimilar from those of a lesser ...
Allen, RM +3 more
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Earth, Planets and Space, 2019 The authors have retracted this article [1] because after its publication, they noticed that the source inversion was not done with the intended setting. Although it was mentioned in this article [1] that the rupture starting point of the fault model was
Hisahiko Kubo +4 more
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Вестник Дагестанского государственного технического университета: Технические науки, 2019 Objectives The purpose of the study is to obtain an expression for determining the coordinates of the earthquake focus using the ellipsoid method, as well as testing the possibility of using the method using the figures of the second order of the ...
T. G. Aslanov, U. A. Musaeva
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Microseismic Monitoring and Hypocenter Location
, 2010 Many pages are in colour.
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An approach for teleseismic location by automatically matching depth phase
Frontiers in Earth ScienceTo deal with the low efficiency problem of accurate teleseismic hypocenter location, this paper proposes a fully automatic approach by integrating the advantages of Seismic-Scanning based on Navigated Automatic Phase-picking, which can automatically ...
Jianlong Yuan +4 more
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Applied SciencesThe study of the hypocenter distribution of seismic events related to fault structures is a crucial topic since it is linked to the geological features and to the dynamics of an investigated area.
Annarita Mangiacapra +6 more
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Local and regional minimum 1D models for earthquake location and data quality assessment in complex tectonic regions: application to Switzerland [PDF]
, 2018 One-dimensional (1D) velocity models are still widely used for computing earthquake locations at seismological centers or in regions where three-dimensional (3D) velocity models are not available due to the lack of data of sufficiently high quality.
Clinton, John +2 more
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Source Mechanism and Rupture Directivity of the 18 May 2009 M_W 4.6 Inglewood, California, Earthquake [PDF]
, 2010 On 18 May 2009, an M_w 4.6 earthquake occurred beneath Inglewood, California, and was widely felt. Though source mechanism and its location suggest that the Newport–Inglewood fault (NIF) may be involved in generating the earthquake, rupture directivity ...
Chen, Yong +7 more
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