Abstract
The paper presents a simple method to determine gross temporal and spatial characteristics of faulting that can uniquely define the fault plane for a relatively large earthquake. The technique involves deconvolution of teleseismic and regional broadband surface waves (and/or body waves) of a small event (an empirical Green function) from the corresponding signals at the same stations for a large mainshock. The procedure is applied to the 28 June 1992 Landers, California (Mw = 7.3), earthquake. The Landers earthquake source duration lasted about 25 sec, and was dominated by two subevents with predominantly north-northwestward rupture extending 60 to 70 km. The subevents show counterclockwise rotations of at least 12° in strike that correlate well with mapped surface rupture. -from Authors
| Original language | English (US) |
|---|---|
| Pages (from-to) | 735-750 |
| Number of pages | 16 |
| Journal | Bulletin - Seismological Society of America |
| Volume | 84 |
| Issue number | 3 |
| State | Published - Jan 1 1994 |
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All Science Journal Classification (ASJC) codes
- Geophysics
- Geochemistry and Petrology
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Empirical Green function deconvolution of broadband surface waves : rupture directivity of the 1992 Landers, California (Mw = 7.3), earthquake. / Velasco, A. A.; Ammon, C. J.; Lay, T.
In: Bulletin - Seismological Society of America, Vol. 84, No. 3, 01.01.1994, p. 735-750.Research output: Contribution to journal › Article
TY - JOUR
T1 - Empirical Green function deconvolution of broadband surface waves
T2 - rupture directivity of the 1992 Landers, California (Mw = 7.3), earthquake
AU - Velasco, A. A.
AU - Ammon, C. J.
AU - Lay, T.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - The paper presents a simple method to determine gross temporal and spatial characteristics of faulting that can uniquely define the fault plane for a relatively large earthquake. The technique involves deconvolution of teleseismic and regional broadband surface waves (and/or body waves) of a small event (an empirical Green function) from the corresponding signals at the same stations for a large mainshock. The procedure is applied to the 28 June 1992 Landers, California (Mw = 7.3), earthquake. The Landers earthquake source duration lasted about 25 sec, and was dominated by two subevents with predominantly north-northwestward rupture extending 60 to 70 km. The subevents show counterclockwise rotations of at least 12° in strike that correlate well with mapped surface rupture. -from Authors
AB - The paper presents a simple method to determine gross temporal and spatial characteristics of faulting that can uniquely define the fault plane for a relatively large earthquake. The technique involves deconvolution of teleseismic and regional broadband surface waves (and/or body waves) of a small event (an empirical Green function) from the corresponding signals at the same stations for a large mainshock. The procedure is applied to the 28 June 1992 Landers, California (Mw = 7.3), earthquake. The Landers earthquake source duration lasted about 25 sec, and was dominated by two subevents with predominantly north-northwestward rupture extending 60 to 70 km. The subevents show counterclockwise rotations of at least 12° in strike that correlate well with mapped surface rupture. -from Authors
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M3 - Article
AN - SCOPUS:0028554864
VL - 84
SP - 735
EP - 750
JO - Bulletin of the Seismological Society of America
JF - Bulletin of the Seismological Society of America
SN - 0037-1106
IS - 3
ER -