Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Three–Dimensional Acoustic Multipole Waveform Inversion at Yasur Volcano, Vanuatu

Journal Article · · Journal of Geophysical Research. Solid Earth
DOI:https://doi.org/10.1029/2018JB017073· OSTI ID:1583041
 [1];  [1];  [2];  [3];  [4]
  1. Univ. of Alaska Fairbanks, AK (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. GNS Science, Lower Hutt (New Zealand)
  4. Univ. of California, Santa Barbara, CA (United States)
+ Show Author Affiliations
Acoustic waveform inversions can provide estimates of volume flow rate and erupted mass, enhancing the ability to estimate volcanic emissions. Previous studies have generally assumed a simple acoustic source (monopole); however, more complex and accurate source reconstructions are possible with a combination of equivalent sources (multipole). We deployed a high–density acoustic network around Yasur volcano, Vanuatu, including acoustic sensors on a tethered aerostat that was moved every ~15–60 min. Using this unique data set we invert for the acoustic multipole source mechanism using a grid search approach for 80 events to examine volume flow rates and dipole strengths. Our method utilizes finite–difference time–domain modeling to obtain the full 3–D Green's functions that account for topography. Inversion results are compared using a monopole–only, multipole (monopole and dipole), simulations that do not include topography, and those that use a subset of sensors. We find that the monopole source is a good approximation when topography is considered. However, initial compression amplitude is not fully captured by a monopole source so source directionality cannot be ruled out. The monopole solution is stable regardless of whether a monopole–only or multipole inversion is performed. Inversions for the dipole components produce estimates consistent with observed source directionality, though these inversions are somewhat unstable given station configurations of typical deployments. Furthermore, our results suggest that infrasound waveform inversion shows promise for realistic quantitative source estimates, but additional work is necessary to fully explore inversion stability, uncertainty, and robustness.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1583041
Report Number(s):
LLNL-JRNL--800930; 1004072
Journal Information:
Journal of Geophysical Research. Solid Earth, Journal Name: Journal of Geophysical Research. Solid Earth Journal Issue: 8 Vol. 124; ISSN 2169-9313
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

Blast waves from violent explosive activity at Yasur Volcano, Vanuatu: BLAST WAVES AT YASUR VOLCANO journal November 2013
Aeroacoustics of volcanic jets: Acoustic power estimation and jet velocity dependence: VOLCANIC JET AEROACOUSTICS journal December 2013
Evaluation of wind and temperature profiles from ECMWF analysis on two hemispheres using volcanic infrasound journal July 2014
Acoustic source inversion to estimate volume flux from volcanic explosions: ACOUTIC SOURCE INVERSION journal July 2015
Short term precursors of Strombolian explosions at Yasur volcano (Vanuatu): PRECURSORS OF STROMBOLIAN EXPLOSIONS journal March 2016
Characterization of moderate ash-and-gas explosions at Santiaguito volcano, Guatemala, from infrasound waveform inversion and thermal infrared measurements: EXPLOSIONS AT SANTIAGUITO journal June 2016
Waveform inversion of acoustic waves for explosion yield estimation: ACOUSTIC SOURCE INVERSION journal July 2016
Capturing the Acoustic Radiation Pattern of Strombolian Eruptions using Infrasound Sensors Aboard a Tethered Aerostat, Yasur Volcano, Vanuatu journal October 2017
Diverse Eruptive Activity Revealed by Acoustic and Electromagnetic Observations of the 14 July 2013 Intense Vulcanian Eruption of Tungurahua Volcano, Ecuador journal April 2018
Broadband (0–4 Hz) Ground Motions for a Magnitude 7.0 Hayward Fault Earthquake With Three‐Dimensional Structure and Topography journal January 2018
Volcano Infrasound and the International Monitoring System book October 2018
Generation and propagation of infrasonic airwaves from volcanic explosions journal February 2003
Eruption mass estimation using infrasound waveform inversion and ash and gas measurements: Evaluation at Sakurajima Volcano, Japan journal December 2017
4D velocity of Strombolian eruptions and man-made explosions derived from multiple Doppler radar instruments journal November 2008
Acoustic source characterization of impulsive Strombolian eruptions from the Mount Erebus lava lake journal November 2008
Estimates of eruption velocity and plume height from infrasonic recordings of the 2006 eruption of Augustine Volcano, Alaska journal January 2010
Volcano infrasound: A review journal September 2011
An overview of volcano infrasound: From hawaiian to plinian, local to global journal January 2013
Influence of near-source volcano topography on the acoustic wavefield and implication for source modeling journal January 2013
Inverting the source mechanism of Strombolian explosions at Mt. Yasur, Vanuatu, using a multi-parameter dataset journal July 2013
Three-dimensional volcano-acoustic source localization at Karymsky Volcano, Kamchatka, Russia journal August 2014
Strombolian surface activity regimes at Yasur volcano, Vanuatu, as observed by Doppler radar, infrared camera and infrasound journal August 2016
Infrasound from the 2012–2013 Plosky Tolbachik, Kamchatka fissure eruption journal December 2015
Families of similar events and modes of oscillation of the conduit at Yasur volcano (Vanuatu) journal August 2016
Gas mass derived by infrasound and UV cameras: Implications for mass flow rate journal October 2016
Infrasound tremor from bubble burst eruptions in the viscous shallow crater lake of White Island, New Zealand, and its implications for interpreting volcanic source processes journal November 2016
Analysis of gas jetting and fumarole acoustics at Aso Volcano, Japan journal June 2017
Using infrasound waves to monitor tropospheric weather and crater morphology changes at Volcán Tungurahua, Ecuador journal January 2018
Infrasound explosion and coda signal investigated with joint analysis of video at Mount Erebus, Antarctica journal May 2018
Source mechanism of Vulcanian degassing at Popocatépetl Volcano, Mexico, determined from waveform inversions of very long period signals journal January 2005
Infrasound monitoring of volcanoes to probe high-altitude winds journal January 2005
Influence of near-surface volcanic structure on long-period seismic signals and on moment tensor inversions: Simulated examples from Mount Etna: VOLCANIC STRUCTURE INFLUENCE ON LPs journal August 2008
Infrasonic jet noise from volcanic eruptions journal January 2009
The source of infrasound associated with long‐period events at Mount St. Helens journal January 2009
Statistical selection of the “best” seismic source mechanisms from inversions of synthetic volcanic long-period events journal January 2010
Multiparameter quantification of gas release during weak Strombolian eruptions at Pacaya Volcano, Guatemala: MULTIPARAMETER QUANTIFICATION OF GAS journal May 2010
Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions: TRANSIENT VOLCANIC INFRASOUND journal March 2011
Shallow magma-mingling-driven Strombolian eruptions at Mt. Yasur volcano, Vanuatu: SHALLOW MAGMA-MINGLING AT MT. YASUR journal November 2012
Probing local wind and temperature structure using infrasound from Volcan Villarrica (Chile): VOLCANO INFRASOUND PROBING OF ATMOSPHERE journal September 2012
Waveform inversion of very long period impulsive signals associated with magmatic injection beneath Kilauea volcano, Hawaii journal October 1998
Photoballistics of volcanic jet activity at Stromboli, Italy journal November 1974
Magma and Volatile Supply to Post-collapse Volcanism and Block Resurgence in Siwi Caldera (Tanna Island, Vanuatu Arc) journal June 2011
On sound generated aerodynamically I. General theory journal March 1952
Enhancement of Teleseismic Body Phases with a Polarization Filter journal November 1970
Acoustic Noise from Volcanoes: Theory and Experiment journal June 1976
Acoustic multipole source model for volcanic explosions and inversion for source parameters journal December 2012
Acoustic Noise from Volcanoes: Theory and Experiment journal December 1958
Equations for finite-difference, time-domain simulation of sound propagation in moving inhomogeneous media and numerical implementation journal February 2005
Finite‐difference time‐domain approach to underwater acoustic scattering problems journal April 1996
LSQR: An Algorithm for Sparse Linear Equations and Sparse Least Squares journal March 1982
Implementation, Characterization, and Evaluation of an Inexpensive Low-Power Low-Noise Infrasound Sensor Based on a Micromachined Differential Pressure Transducer and a Mechanical Filter journal September 2012
Using infrasound to constrain ash plume rise journal November 2015
Acoustic multipole source model for volcanic explosions and inversion for source parameters text January 2012
Local Volcano Infrasound and Source Localization Investigated by 3D Simulation journal October 2014
Application of the Monopole Source to Quantify Explosive Flux during Vulcanian Explosions at Sakurajima Volcano (Japan) journal October 2014
Acoustic Characterization of Explosion Complexity at Sakurajima, Karymsky, and Tungurahua Volcanoes journal October 2014

Figures / Tables (17)

Table 1(p. 31)table Table 1
Table 2(p. 32)table Table 2
Table 3(p. 33)table Table 3
Figure 1(p. 44)figure Figure 1
Figure 2(p. 46)figure Figure 2
Figure 3(p. 48)figure Figure 3
Figure 4(p. 50)figure Figure 4
Figure 5(p. 52)figure Figure 5
Figure 6(p. 54)figure Figure 6
Figure 7(p. 56)figure Figure 7
Figure 8(p. 58)figure Figure 8
Figure 9(p. 60)figure Figure 9
Figure 10(p. 62)figure Figure 10
Figure 11(p. 64)figure Figure 11
Figure 12(p. 66)figure Figure 12
Figure 13(p. 68)figure Figure 13
Figure 14(p. 70)figure Figure 14

Similar Records

Synthetic Evaluation of Infrasonic Multipole Waveform Inversion
Journal Article · Sun Dec 26 19:00:00 EST 2021 · Journal of Geophysical Research. Solid Earth · OSTI ID:1860824
Eruption mass estimation using infrasound waveform inversion and ash and gas measurements: Evaluation at Sakurajima Volcano, Japan [Comparison of eruption masses at Sakurajima Volcano, Japan calculated by infrasound waveform inversion and ground-based sampling]
Journal Article · Sun Oct 08 20:00:00 EDT 2017 · Earth and Planetary Science Letters · OSTI ID:1404839
Volume Flow Rate Estimation for Small Explosions at Mt. Etna, Italy, From Acoustic Waveform Inversion
Journal Article · Mon Sep 30 20:00:00 EDT 2019 · Geophysical Research Letters · OSTI ID:1601951

Related Subjects

58 GEOSCIENCES