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Waveform inversion of volcano‐seismic signals assuming possible source geometries
Author(s) -
Nakano Masaru,
Kumagai Hiroyuki
Publication year - 2005
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2005gl022666
Subject(s) - waveform , geology , seismology , volcano , inversion (geology) , seismic wave , geophysics , computer science , telecommunications , radar , tectonics
We propose an approach to quantify the source of volcano‐seismic signals assuming possible source geometries. Such an assumption reduces the number of free parameters in a waveform inversion, so we can quantify the source of these signals observed by a small number of seismic stations. We test this method by using the synthesized waveforms radiated by a fluid‐filled crack and with seismic data observed at Kusatsu‐Shirane Volcano. We find that waveform data from 2 to 3 three‐component seismic stations surrounding the source enable us to estimate the source mechanism and location in the present approach.