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infrasonic waves

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Journal Article
Published: 18 August 2020
Bulletin of the Seismological Society of America (2020) 110 (6): 2991–3003.
... signals generated by Rayleigh waves. The study represents the first attempt to analyze ground‐coupled infrasonic waves with strain waves and illustrates the potential of collocated strainmeter–microbarometer stations for basic seismoacoustic studies. In this article, I conduct a systematic detection...
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Journal Article
Published: 08 January 2020
Seismological Research Letters (2020) 91 (2A): 921–929.
...Sarah Albert; Lisa Linville Abstract Low‐frequency sound ≤ 20 Hz , known as infrasound, is generated by a variety of natural and anthropogenic sources. Following an event, infrasonic waves travel through a dynamic atmosphere that can change on the order of minutes. This makes infrasound event...
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Published: 01 July 2010
Figure 4. ▴ Celerity (or mean travel velocity) is used to identify the nature of the infrasonic waves.
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Published: 01 October 2010
Figure 20. Seismograms for the 2 August 2003 explosion. Top: Unfiltered traces. Bottom: Same traces filtered between 30 and 40 Hz to observe the infrasonic wave.
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Published: 01 September 2014
Figure 4. Network triad beam‐forming results for the 27 November 2013 meteor, located at the network beam position (star). Although the detection of a ballistic or line‐source trajectory for the meteoroid is not apparent, the propagation of an infrasonic wave propagating to the southeast to south
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Published: 08 January 2020
Figure 1. A map of the infrasound events used in this study. Lines originate from the source location and connect to all stations (black triangles) that detected the event. Note that lines are straight paths and do not represent the actual path traveled by the infrasonic wave. Line colors
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Published: 01 May 2005
caused effusive fractures to progressively shut down. This induced magma to steadily rise up conduit, increasing gas overpressure and explosive activity. Upward magma migration was monitored by progressive reduction in thermo-acoustic time delays, and by amplitude increase of infrasonic waves
Journal Article
Published: 01 April 2007
Bulletin of the Seismological Society of America (2007) 97 (2): 417–425.
... by analyzing the Rayleigh waves and found to be 06h55m27±2sec coordinated universal time ( utc ). Ground truth of the explosion was invoked to assess the accuracy of the location derived from infrasound data recorded over Western Europe. Different infrasonic phases were identified by using array-processing...
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Published: 01 October 2009
Figure 3. Infrasonic and seismic observations of meteor-generated shock waves observed to couple to the surface over a 24 month period of observation at ELFO. Infrasound from the nearest and least noisy microbarometer site is given above (either ELFO2 or ELFO4), with the corresponding vertical
Journal Article
Journal: Geology
Published: 01 May 2005
Geology (2005) 33 (5): 341–344.
... caused effusive fractures to progressively shut down. This induced magma to steadily rise up conduit, increasing gas overpressure and explosive activity. Upward magma migration was monitored by progressive reduction in thermo-acoustic time delays, and by amplitude increase of infrasonic waves ...
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Journal Article
Published: 01 June 1975
Bulletin of the Seismological Society of America (1975) 65 (3): 637–650.
...) . A preliminary report on infrasonic waves as a source of long-period noise , J. Geophys. Res. 79 , 4908 - 4917 . Sorrells G. G. Douze E. J. (1974b) . Earth noise from atmospheric...
Journal Article
Published: 23 March 2016
Seismological Research Letters (2016) 87 (3): 678–684.
... infrasonic signal (Fig.  1b ). The seismic wave took approximately 40 s to propagate 294 km from the epicenter to the array, with a mean propagation velocity of 7.3  km/s, consistent with the Moho‐discontinuity refracted P ‐wave arrival. © 2016 by the Seismological Society of America Earthquakes...
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Journal Article
Published: 01 July 2010
Seismological Research Letters (2010) 81 (4): 614–624.
...Figure 4. ▴ Celerity (or mean travel velocity) is used to identify the nature of the infrasonic waves. ...
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Journal Article
Published: 15 October 2014
Seismological Research Letters (2014) 85 (6): 1151–1162.
.... Takeo M. Iguchi M. Ripepe M. ( 2014 ). Influence of atmospheric structure and topography on infrasonic wave propagation , J. Geophys. Res. , doi: 10.1002/2013JB010827 . Lopez T. Fee D. Prata F. Dehn J. ( 2013 ). Characterization and interpretation of volcanic...
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Journal Article
Published: 01 September 2014
Seismological Research Letters (2014) 85 (5): 1012–1018.
...Figure 4. Network triad beam‐forming results for the 27 November 2013 meteor, located at the network beam position (star). Although the detection of a ballistic or line‐source trajectory for the meteoroid is not apparent, the propagation of an infrasonic wave propagating to the southeast to south...
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Journal Article
Published: 02 October 2023
The Seismic Record (2023) 3 (4): 249–258.
... to a growing suite of analysis methods for seismoacoustic data by providing an alternative approach to compute the back‐azimuth of an infrasonic wave that is recorded on an infrasound microphone and a seismometer. The resulting back‐azimuth estimates from colocated sensors point in the direction...
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Journal Article
Published: 14 June 2023
Bulletin of the Seismological Society of America (2023) 113 (4): 1616–1627.
... of the 28 September 2018 Sulawesi super‐shear earthquake , Nat. Hazards Earth Syst. Sci. 19 , 2811 – 2825 . Schwardt M. Pilger C. Gaebler P. Hupe P. , and Ceranna L. 2022 . Natural and anthropogenic sources of seismic, hydroacoustic, and infrasonic waves: Waveforms...
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Journal Article
Published: 01 February 2004
Bulletin of the Seismological Society of America (2004) 94 (1): 220–236.
... in the total range of infrasonic noise as a function of frequency. The lack of correlation of seismic noise with wind velocity is consistent with the 10-m borehole and the lack of coupling between the atmospheric pressure variations and seismic waves in the hard rock at the site. There are 157 events...
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Journal Article
Published: 05 September 2018
Seismological Research Letters (2018) 89 (6): 2227–2236.
...‐frequency acoustic waves in the atmosphere from evanescent wave coupling at the water–air interface ( Godin, 2008 ). Such studies show the capability of the infrasonic component of the International Monitoring System (IMS) deployed for the verification regime of the Comprehensive Nuclear‐Test Ban Treaty...
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Journal Article
Published: 01 August 2009
Bulletin of the Seismological Society of America (2009) 99 (4): 2541–2551.
... for seismic arrays, has been shown to be well-adapted for infrasonic array data in which low-amplitude coherent waves are detected within noncoherent noise (e.g., Garces and Hetzer, 2002 ; Le Pichon et al. , 2003 ). Of the four detections made in a 4 hr period surrounding the earthquake origin time, only...
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