Seismic source characterization using a Neighbourhood Algorithm
dc.contributor.author | Kennett, Brian | |
dc.contributor.author | Marson-Pidgeon, K | |
dc.contributor.author | Sambridge, Malcolm | |
dc.date.accessioned | 2015-12-13T23:15:47Z | |
dc.date.available | 2015-12-13T23:15:47Z | |
dc.date.issued | 2000 | |
dc.date.updated | 2015-12-12T08:45:11Z | |
dc.description.abstract | The full characterization of a seismic source requires the specification of the hypocentre location and the source mechanism. The non-linear inversion is accomplished in two stages using the Neighbourhood Algorithm (NA), a direct search method in parameter space which is able to preferentially sample those regions with least data misfit; there are just two control parameters and no differentiation is employed. The first step is hypocentre location using a 4-D search space and a focussed search strategy. The second step is waveform inversion of the early part of P and S wavetrains to refine source depth and extract the source mechanism. With a moment tensor representation, this second stage explores an 8-D parameter space. For both the hypocentre and source mechanism inversion the NA method provides rapid and effective results with information from just a few stations, as illustrated with an event in southern Xinjiang. | |
dc.identifier.issn | 0094-8276 | |
dc.identifier.uri | http://hdl.handle.net/1885/89055 | |
dc.publisher | American Geophysical Union | |
dc.source | Geophysical Research Letters | |
dc.subject | Keywords: algorithm; earthquake mechanism; seismic source; source parameters; Algorithms; Parameter estimation; Seismic waves; Neighbourhood algorithms (NA); Seismic source characterization; Seismology | |
dc.title | Seismic source characterization using a Neighbourhood Algorithm | |
dc.type | Journal article | |
local.bibliographicCitation.issue | 20 | |
local.bibliographicCitation.lastpage | 3,403 | |
local.bibliographicCitation.startpage | 3,401 | |
local.contributor.affiliation | Kennett, Brian, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Marson-Pidgeon, K, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Sambridge, Malcolm, College of Physical and Mathematical Sciences, ANU | |
local.contributor.authoremail | u8413736@anu.edu.au | |
local.contributor.authoruid | Kennett, Brian, u8413736 | |
local.contributor.authoruid | Marson-Pidgeon, K, u9717226 | |
local.contributor.authoruid | Sambridge, Malcolm, u8414462 | |
local.description.notes | Imported from ARIES | |
local.description.refereed | Yes | |
local.identifier.absfor | 040407 - Seismology and Seismic Exploration | |
local.identifier.ariespublication | MigratedxPub18960 | |
local.identifier.citationvolume | 27 | |
local.identifier.doi | 10.1029/2000GL011559 | |
local.identifier.scopusID | 2-s2.0-0034353046 | |
local.identifier.uidSubmittedBy | Migrated | |
local.type.status | Published Version |