We use a cluster of deep earthquakes, the fore- and aftershocks of
the 23-AUG-1995 Mw=7.1 (18.8N, 145.3E, h=595 km) event in the Mariana
subduction zone as source array to locate where waves scatter near
the deep slab. In order to obtain the high-precision location needed
in this context, we first relocate the events with a modified master
event technique. Using the double beam method on the relocated events
and data from the Warramunga array in Australia, we identified two
non-standard S-to-P conversions arriving about 20.5 and 24 s after
the P-wave. The corresponding scatterers are approximately located
at a depth of 790 km (720 km) and a distance of 0.9 deg to the southeast
(2.3 deg to the southwest) of the main shock. The scatterers positions
correspond to the location of lithosphere subducted below the 660
km discontinuity.
%0 Journal Article
%1 kruger_etal:2001
%A Krüger, Frank
%A Baumann, Marlyse
%A Scherbaum, Frank
%A Weber, Michael
%D 2001
%J Geophysical Research Letters
%K geophysics seismology
%N 4
%P 667--670
%R 10.1029/2000GL011570
%T Mid mantle scatterers near the Mariana slab detected with a double
array method
%U http://dx.doi.org/10.1029/2000GL011570
%V 28
%X We use a cluster of deep earthquakes, the fore- and aftershocks of
the 23-AUG-1995 Mw=7.1 (18.8N, 145.3E, h=595 km) event in the Mariana
subduction zone as source array to locate where waves scatter near
the deep slab. In order to obtain the high-precision location needed
in this context, we first relocate the events with a modified master
event technique. Using the double beam method on the relocated events
and data from the Warramunga array in Australia, we identified two
non-standard S-to-P conversions arriving about 20.5 and 24 s after
the P-wave. The corresponding scatterers are approximately located
at a depth of 790 km (720 km) and a distance of 0.9 deg to the southeast
(2.3 deg to the southwest) of the main shock. The scatterers positions
correspond to the location of lithosphere subducted below the 660
km discontinuity.
@article{kruger_etal:2001,
abstract = {We use a cluster of deep earthquakes, the fore- and aftershocks of
the 23-AUG-1995 Mw=7.1 (18.8N, 145.3E, h=595 km) event in the Mariana
subduction zone as source array to locate where waves scatter near
the deep slab. In order to obtain the high-precision location needed
in this context, we first relocate the events with a modified master
event technique. Using the double beam method on the relocated events
and data from the Warramunga array in Australia, we identified two
non-standard S-to-P conversions arriving about 20.5 and 24 s after
the P-wave. The corresponding scatterers are approximately located
at a depth of 790 km (720 km) and a distance of 0.9 deg to the southeast
(2.3 deg to the southwest) of the main shock. The scatterers positions
correspond to the location of lithosphere subducted below the 660
km discontinuity.},
added-at = {2012-09-01T13:08:21.000+0200},
author = {Kr\"{u}ger, Frank and Baumann, Marlyse and Scherbaum, Frank and Weber, Michael},
biburl = {https://www.bibsonomy.org/bibtex/2703342b8e9353e1d7828b6acae44e2cf/nilsma},
doi = {10.1029/2000GL011570},
interhash = {f6a7afb7b1c58428d0736935efa091f6},
intrahash = {703342b8e9353e1d7828b6acae44e2cf},
issn = {0094-8276},
journal = {Geophysical Research Letters},
keywords = {geophysics seismology},
month = feb,
number = 4,
pages = {667--670},
timestamp = {2021-02-09T13:27:34.000+0100},
title = {Mid mantle scatterers near the Mariana slab detected with a double
array method},
url = {http://dx.doi.org/10.1029/2000GL011570},
volume = 28,
year = 2001
}