DOI: 10.1029/2007gl031902. Moment‐tensor inversion of LP events recorded on Etna in 2004 using constraints obtained from wave simulation tests

Moment‐tensor inversion of LP events recorded on Etna in 2004 using constraints obtained from wave simulation tests

10.1029/2007gl031902

Crossref journal-article

American Geophysical Union (AGU)

Geophysical Research Letters (13)

Abstract

The persistent occurrence of long period (LP) events at Mt Etna became apparent with the installation of the first fixed broad‐band seismic network in late 2003. Repeating similar LP events from Nov. ‘03 to Sept. ‘04 indicate a non‐destructive source process. We perform moment tensor (MT) inversions on a stacked high S/N ratio representative LP signal, conducting a grid search for the source geometry and L2‐inversion for the source time function. Results indicate a NNW‐SSE oriented resonating sub‐vertical crack as the most probable source. This result is consistent with deformation and GPS observations. Crucial to this result are constraints imposed by detailed 3D full waveform numerical simulations in a heterogeneous tomographic model with topography, and in particular a detailed assessment of the influence of very near surface velocity structure on LP signals. Pulsating gas injection is hypothesised as the most likely LP trigger.

Bibliography

Lokmer, I., Bean, C. J., Saccorotti, G., & PatanÃ¨, D. (2007). Momentâtensor inversion of LP events recorded on Etna in 2004 using constraints obtained from wave simulation tests. Geophysical Research Letters, 34(22). Portico.

Authors 4

Ivan Lokmer (first)
Christopher J. Bean (additional)
Gilberto Saccorotti (additional)
Domenico Patanè (additional)

References 25 Referenced 55

10.1016/0377-0273(77)90003-8
10.1016/j.earscirev.2006.04.002
10.1029/143GM18
{'key': 'e_1_2_8_5_1', 'article-title': 'A frequency domain inversion code to retrieve time‐dependent parameters of very‐long period volcanic sources', 'author': 'Cesca S.', 'year': '2007', 'journal-title': 'Comput. Geosci'} / Comput. Geosci / A frequency domain inversion code to retrieve time‐dependent parameters of very‐long period volcanic sources by Cesca S. (2007)
10.1029/JB091iB14p13967
10.1029/JB093iB05p04375
10.1007/PL00012556
10.1029/2002JB001919
10.1046/j.1365-3121.2003.00520.x
10.1029/JB087iB10p08675
10.1029/2001JB001704
10.1111/j.1365‐246X.2005.02502.x
10.1016/S0377-0273(00)00167-0
{'key': 'e_1_2_8_15_1', 'article-title': 'Temporal evolution of long‐period seismicity at Etna Volcano, Italy, and its relationship with the 2004–2005 eruption', 'author': 'Lokmer I.', 'year': '2007', 'journal-title': 'Earth Planet. Sci. Lett'} / Earth Planet. Sci. Lett / Temporal evolution of long‐period seismicity at Etna Volcano, Italy, and its relationship with the 2004–2005 eruption by Lokmer I. (2007)
10.1130/0016-7606(1973)84<3563:POSCIR>2.0.CO;2
10.1029/2005GL022666
10.1016/S0377-0273(02)00499-7
10.1016/S0377-0273(00)00169-4
10.1029/2004GL020069
10.1029/98JB01122
10.1029/2001GL014391
10.1029/2004GL021773
10.1016/j.jvolgeores.2004.04.003
10.1016/j.jvolgeores.2006.10.008
10.1038/nphys375

Dates

Type	When
Created	17 years, 8 months ago (Nov. 28, 2007, 4:01 p.m.)
Deposited	1 year, 9 months ago (Oct. 30, 2023, 9:27 p.m.)
Indexed	4 days, 13 hours ago (Aug. 21, 2025, 1:48 p.m.)
Issued	17 years, 9 months ago (Nov. 1, 2007)
Published	17 years, 9 months ago (Nov. 1, 2007)
Published Online	17 years, 8 months ago (Nov. 29, 2007)
Published Print	17 years, 9 months ago (Nov. 1, 2007)

Funders 0

None

BibTeX

@article{Lokmer_2007, title={Moment‐tensor inversion of LP events recorded on Etna in 2004 using constraints obtained from wave simulation tests}, volume={34}, ISSN={1944-8007}, url={http://dx.doi.org/10.1029/2007gl031902}, DOI={10.1029/2007gl031902}, number={22}, journal={Geophysical Research Letters}, publisher={American Geophysical Union (AGU)}, author={Lokmer, Ivan and Bean, Christopher J. and Saccorotti, Gilberto and Patanè, Domenico}, year={2007}, month=nov }

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