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

IMS observations of infrasound and acoustic-gravity waves produced by the January 2022 volcanic eruption of Hunga, Tonga: A global analysis

Journal Article · · Earth and Planetary Science Letters
 [1];  [2];  [3];  [3];  [4];  [5];  [6];  [2];  [2];  [2];  [7];  [8];  [9];  [9];  [10];  [11]
  1. CEA, DAM, DIF, Arpajon (France); University of Michigan, NERS
  2. BGR, Hannover (Germany)
  3. CEA, DAM, DIF, Arpajon (France)
  4. Univ. of Hawaii at Manoa, Honolulu, HI (United States)
  5. Univ. of Firenze (Italy)
  6. Univ. Clermont Auvergne (France)
  7. NORSAR, Kjeller (Norway); Univ. of Oslo (Norway)
  8. NORSAR, Kjeller (Norway)
  9. Univ. Grenoble Alpes (France)
  10. Univ. of California, Santa Barbara, CA (United States)
  11. CTBTO (Comprehensive Nuclear-Test-Ban Treaty Organization), Vienna (Austria)

The 15 January 2022 Hunga, Tonga, volcano's explosive eruption produced the most powerful blast recorded in the last century, with an estimated equivalent TNT yield of 100–200 megatons. The blast energy was propagated through the atmosphere as various wave types. The most prominent wave was a long-period (>2000 s) surface-guided Lamb wave with energy comparable to that of the 1883 Krakatoa Lamb wave; both were clearly observed by pressure sensors (barometers) worldwide. Internal gravity, acoustic-gravity, and infrasound waves were captured in great detail by the entire infrasound component of the International Monitoring System (IMS). For instance, infrasound waves (<300 s period) were seen to circumnavigate Earth up to eight times. Atmospheric waves captured by the IMS infrasound network and selected barometers near the source provide insight on Earth's impulse response at planetary scales.

Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
NA0003920
OSTI ID:
1877608
Alternate ID(s):
OSTI ID: 1878570
Journal Information:
Earth and Planetary Science Letters, Journal Name: Earth and Planetary Science Letters Vol. 591; ISSN 0012-821X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (31)

An update to the Horizontal Wind Model (HWM): The quiet time thermosphere: EMPIRICAL MODEL OF THERMOSPHERIC WINDS journal July 2015
The 2013 Russian fireball largest ever detected by CTBTO infrasound sensors: METEOR LARGEST INFRASOUND RECORDED journal July 2013
Lamb waves in a nearly isothermal atmosphere journal October 1969
Krakatau revisited: The course of events and interpretation of the 1883 eruption journal October 1992
Preliminary reference Earth model journal June 1981
Satellite observations of a surtseyan eruption: Hunga Ha'apai, Tonga journal December 2010
The magmatic and eruptive evolution of the 1883 caldera-forming eruption of Krakatau: Integrating field- to crystal-scale observations journal March 2021
NRLMSISE-00 empirical model of the atmosphere: Statistical comparisons and scientific issues: TECHNIQUES journal December 2002
Estimating the detection capability of the International Monitoring System infrasound network journal January 2010
1001 Rocket Launches for Space Missions and Their Infrasonic Signature journal April 2021
Rapid Characterization of Large Volcanic Eruptions: Measuring the Impulse of the Hunga Tonga Ha’apai Explosion From Teleseismic Waves journal April 2022
An automatic seismic event processing for detection and location: The P.M.C.C. Method journal May 1995
Acoustic-gravity modes and large-scale traveling ionospheric disturbances of a realistic, dissipative atmosphere journal May 1973
Analysis of long-period seismic waves excited by the May 18, 1980, eruption of Mount St. Helens-A terrestrial monopole? journal July 1982
Utilization of seismically recorded infrasonic-acoustic signals to monitor volcanic explosions: The El Chichon Sequence 1982-A case study journal December 1983
Lamb waves in the presence of realistic distributions of temperature and dissipation journal April 1972
Propagation of acoustic-gravity waves in the atmosphere journal September 1962
Timing and climate forcing of volcanic eruptions for the past 2,500 years journal July 2015
Background Lamb waves in the Earth's atmosphere journal November 2013
Localization of the complex spectrum: the S transform journal April 1996
The Krakatoa Air-Sea Waves: an Example of Pulse Propagation in Coupled Systems journal July 1967
A global model of Love and Rayleigh surface wave dispersion and anisotropy, 25-250 s: Global dispersion model GDM52 journal October 2011
Modeling the refraction of microbaroms by the winds of a large maritime storm journal December 2017
Modeling infrasonic propagation through a spherical atmospheric layer—Analysis of the stratospheric pair journal April 2019
Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga journal July 2022
Fresnel volume ray tracing journal July 1992
Empirical Acoustic Source Model for Chemical Explosions in Air journal June 2021
Improved Parametric Models for Explosion Pressure Signals Derived From Large Datasets journal March 2020
ObsPy: A Python Toolbox for Seismology journal May 2010
Spectra of Acoustic-Gravity Waves in the Atmosphere with a Quasi-Isothermal Upper Layer journal June 2021
International Monitoring System infrasound data products for atmospheric studies and civilian applications journal September 2022

Figures / Tables (8)