%0 Journal Article %1 ripepe_marchetti:2002 %A Ripepe, M. %A Marchetti, E. %D 2002 %J Geophysical Research Letters %K geophysics %N 22 %P 2076+ %R 10.1029/2002GL015452 %T Array tracking of infrasonic sources at Stromboli volcano %U http://dx.doi.org/10.1029/2002GL015452 %V 29 %X Infrasonic arrays are a powerful tool for volcanic monitoring and hazard assessment. Explosions were recorded at Stromboli using a small aperture array of 4 infrasonic stations, allowing precise vent location. The acoustic signals were delayed-and-summed, revealing the existence of two main groups of infrasonic waves. The NE crater produces short (<3 s) high amplitude (20-80 Pa) pressure waves while the SW crater producess mall acoustic pressure (10-30 Pa) with long (5-15 s) coda. The two groups reflect different in explosive styles and similar spectral content, centered on 5-6 Hz. When stacked together, acoustic waveforms for each crater reveal the same pressure pulse, which indicates a common source process. We infer that the acoustic onset at both craters is generated by the burst of a large gas bubble while the acoustic coda is controlled by a sustained pressure release.

@article{ripepe_marchetti:2002, abstract = {Infrasonic arrays are a powerful tool for volcanic monitoring and hazard assessment. Explosions were recorded at Stromboli using a small aperture array of 4 infrasonic stations, allowing precise vent location. The acoustic signals were delayed-and-summed, revealing the existence of two main groups of infrasonic waves. The NE crater produces short (<3 s) high amplitude (20-80 Pa) pressure waves while the SW crater producess mall acoustic pressure (10-30 Pa) with long (5-15 s) coda. The two groups reflect different in explosive styles and similar spectral content, centered on 5-6 Hz. When stacked together, acoustic waveforms for each crater reveal the same pressure pulse, which indicates a common source process. We infer that the acoustic onset at both craters is generated by the burst of a large gas bubble while the acoustic coda is controlled by a sustained pressure release.}, added-at = {2012-09-01T13:08:21.000+0200}, author = {Ripepe, M. and Marchetti, E.}, biburl = {https://www.bibsonomy.org/bibtex/2982314215428d1f562cdc8f6d2825b54/nilsma}, day = 29, doi = {10.1029/2002GL015452}, interhash = {d4ec7bab73a58f886a525823bb532e0d}, intrahash = {982314215428d1f562cdc8f6d2825b54}, issn = {0094-8276}, journal = {Geophysical Research Letters}, keywords = {geophysics}, month = nov, number = 22, pages = {2076+}, timestamp = {2021-02-09T13:26:52.000+0100}, title = {Array tracking of infrasonic sources at Stromboli volcano}, url = {http://dx.doi.org/10.1029/2002GL015452}, volume = 29, year = 2002 }