DOI: 10.1785/bssa0620020561. The use of body-wave spectra in the determination of seismic-source parameters

The use of body-wave spectra in the determination of seismic-source parameters

10.1785/bssa0620020561

Crossref journal-article

Seismological Society of America (SSA)

Bulletin of the Seismological Society of America (790)

Abstract

abstractTeleseismic determinations of body-wave (P, S) spectra, interpreted in terms of the Brune (1970) seismic-source model, are used to estimate the parameters seismic moment (Mto) and source dimension (r) for three large, shallow, strike-slip earthquakes occurring on nearly vertical fault planes and for which the same parameters can be determined from field (F) data. These earthquakes are (1) the Borrego Mountain, California, earthquake (April 9, 1968) for which [Mo(P) = 10, Mo(S) = 6.6, and Mo(F) = 3.6] × 1025 dyne-cm and [r(p) = 14, r(S) = 23, and L/2(F) = 17] km; (2) the Mudurnu Valley, Turkey, earthquake (July 22, 1967) for which [-Mo(P) = 9.1, Mo(S) = 8.5, and Mo(F) = 7.4] × 1026 dyne-cm, and [r(P) = 39, r(S) = 48, and L/2(F) = 40] km; and (3) the Dasht-e-Bayāz, Iran, earthquake (August 31, 1968) for which [Mo(P) = 4.8, Mo(S) = 8.6, and Mo(F) = 18] × 1026 dyne-cm, and [r(P) = S1, r(S) = 48, and L/2(F) = 40] km. The Brune (1970) model is well-calibrated with respect to the determination of these parameters for the earthquakes considered. A minimum estimate for the radiated energy can be expressed in terms of Mo and r; this estimate is low by a factor of 10 with respect to the estimate obtained from energy-magnitude relations for these three earthquakes. The stress drops of these events are of the order of 10 bars.

Bibliography

Hanks, T. C., & Wyss, M. (1972). The use of body-wave spectra in the determination of seismic-source parameters. Bulletin of the Seismological Society of America, 62(2), 561â589.

Authors 2

Thomas C. Hanks (first)
Max Wyss (additional)

References 39 Referenced 300

{'key': '2021091018212401700_BIB1', 'first-page': '73', 'article-title': 'Generation and propagation of G-waves from the Niigata earthquake of June 16, 1964. Part 2. Estimation of earthquake moment, released energy, and stress-strain drop from the G-wave spectrum', 'volume': '44', 'author': 'Aki', 'year': '(1966)', 'journal-title': 'Bull. Earthquake Res. Inst., Tokyo Univ.'} / Bull. Earthquake Res. Inst., Tokyo Univ. / Generation and propagation of G-waves from the Niigata earthquake of June 16, 1964. Part 2. Estimation of earthquake moment, released energy, and stress-strain drop from the G-wave spectrum by Aki ((1966))
10.1029/JZ072i004p01217 / J. Geophys. Res. / Scaling law of seismic spectrum by Aki ((1967))
10.1029/JB073i016p05359 / J. Geophys. Res. / Seismic displacements near a fault by Aki ((1968))
10.1785/BSSA0580031183 / Bull. Seism. Soc. Am. / The Borrego Mountain, California, earthquake of 9 April 1968: A preliminary report by Allen ((1968))
{'key': '2021091018212401700_BIB5', 'article-title': 'Borrego Mountain earthquake: Foreshock, main shock, and larger aftershocks', 'author': 'Allen', 'year': '(1971)', 'journal-title': 'U.S. Geol. Survey Professional Paper'} / U.S. Geol. Survey Professional Paper / Borrego Mountain earthquake: Foreshock, main shock, and larger aftershocks by Allen ((1971))
10.1785/BSSA0590051751 / Bull. Seism. Soc. Am. / The Dasht-e-Bayāz (Iran) earthquake of August 31, 1968: A field report by Ambraseys ((1969))
10.1785/BSSA0590020521 / Bull. Seism. Soc. Am. / The Mudurnu Valley, West Anatolia, Turkey, earthquake of 22 July 1967 by Ambraseys ((1969))
Archambeau C. B. (1964). Elastodynamic source theory, Ph.D. Thesis, California Institute of Technology.
10.1029/RG006i003p00241 / Rev. Geophys. / General theory of elastodynamic source fields by Archambeau ((1968))
10.1785/BSSA0510030401 / Bull. Seism. Soc. Am. / Radiation of seismic surface waves from finite moving sources by Ben-Menahem ((1961))
10.1029/JZ069i012p02605 / J. Geophys. Res. / Radiation patterns of seismic surface waves from buried dipolar point sources in a flat stratified earth by Ben-Menahem ((1964))
10.1785/BSSA0550020203 / Bull. Seism. Soc. Am. / A procedure for source studies from spectrums of long-period seismic waves by Ben-Menahem ((1965))
Berckhemer H. Jacob K. H. (1968). Investigation of the dynamical process in earthquake foci by analyzing the pulse shape of body waves, Final Sci. Rep. AF 61(052)-801, Air Force Cambridge Research Laboratories.
10.1029/JB075i026p04997 / J. Geophys. Res. / Tectonic stress and the spectra of seismic shear waves from earthquakes by Brune ((1970))
{'key': '2021091018212401700_BIB15', 'first-page': '5002', 'article-title': 'Correction (to Brune(1970))', 'volume': '76', 'author': 'Brune', 'year': '(1971)', 'journal-title': 'J. Geophys. Res.'} / J. Geophys. Res. / Correction (to Brune(1970)) by Brune ((1971))
10.1785/BSSA0570030501 / Bull. Seism. Soc. Am. / A low stress-drop, low magnitude earthquake with surface faulting: The Imperial, California, earthquake of March 4, 1966 by Brune ((1967))
10.1785/BSSA0580061849 / Bull. Seism. Soc. Am. / On the synthesis of shear-coupled PL waves by Chander ((1968))
10.1785/BSSA0590051823 / Bull. Seism. Soc. Am. / Aftershocks of the Dasht-e-Bayāz, Iran, earthquake of August, 1968 by Crampin ((1969))
{'key': '2021091018212401700_BIB19', 'article-title': 'Aftershocks of the Borrego Mountain earthquake, April 12 to June 12, 1968', 'author': 'Hamilton', 'year': '(1971)', 'journal-title': 'U.S. Geol. Survey Professional Paper'} / U.S. Geol. Survey Professional Paper / Aftershocks of the Borrego Mountain earthquake, April 12 to June 12, 1968 by Hamilton ((1971))
10.1785/BSSA05406A1811 / Bull. Seism. Soc. Am. / Total energy and energy spectral density of elastic wave radiation from propagating faults by Haskell ((1964))
10.1785/BSSA0590020865 / Bull. Seism. Soc. Am. / Elastic displacements in the near-field of a propagating fault by Haskell ((1969))
10.1029/JB076i014p03229 / J. Geophys. Res. / Upper mantle structure of mid-western United States by Helmberger ((1971))
10.1111/j.1365-246X.1931.tb04462.x / Mon. Notic. Roy. Astron. Soc., Geophys. Suppl. / On the cause of oscillatory movement in seismograms by Jeffreys ((1931))
10.1785/BSSA0580010339 / Bull. Seism. Soc. Am. / Travel times, apparent velocities, and amplitudes of body waves by Julian ((1968))
{'key': '2021091018212401700_BIB25', 'first-page': '473', 'article-title': 'The nature of seismic origins as inferred from seismological and geodetic observations', 'volume': '35', 'author': 'Kasahara', 'year': '(1957)', 'journal-title': 'Bull. Earthquake Res. Inst., Tokyo Univ.'} / Bull. Earthquake Res. Inst., Tokyo Univ. / The nature of seismic origins as inferred from seismological and geodetic observations by Kasahara ((1957))
{'key': '2021091018212401700_BIB26', 'first-page': '29', 'article-title': 'Investigation of the mechanism of earthquakes', 'volume': '4', 'author': 'Keilis-Borok', 'year': '(1960)', 'journal-title': 'Soc. Res. Geophys.'} / Soc. Res. Geophys. / Investigation of the mechanism of earthquakes by Keilis-Borok ((1960))
{'key': '2021091018212401700_BIB27', 'first-page': '278', 'article-title': 'Properties of recent earthquakes in the New Madrid seismic zone', 'volume': '52', 'author': 'Kisslinger', 'year': '(1971)', 'journal-title': 'Trans. Am. Geophys. Union'} / Trans. Am. Geophys. Union / Properties of recent earthquakes in the New Madrid seismic zone by Kisslinger ((1971))
10.1111/j.1365-246X.1958.tb00033.x / Geophys. J. / Energy release in earthquakes by Knopoff ((1958))
10.1785/BSSA0590051843 / Bull. Seism. Soc. Am. / Source dynamics of the Dasht-e-Bayāz earthquake of August 31, 1968 by Niazi ((1969))
{'issue': '(4)', 'key': '2021091018212401700_BIB30', 'first-page': '24', 'article-title': 'On the amplitudes of long period P waves (abstract)', 'volume': '37', 'author': 'Nuttli', 'year': '(1966)', 'journal-title': 'Earthquake Notes'} / Earthquake Notes / On the amplitudes of long period P waves (abstract) by Nuttli ((1966))
{'key': '2021091018212401700_BIB31', 'volume-title': 'Elementary Seismology', 'author': 'Richter', 'year': '(1958)'} / Elementary Seismology by Richter ((1958))
10.1029/JB077i020p03788 / J. Geophys. Res. / The relation of corner frequency to fault dimensions by Savage ((1972))
10.1029/JB074i008p02049 / J. Geophys. Res. / Seismic and aseismic slip on the San Andreas fault by Scholz ((1969))
10.1190/1.1445002 / Geophysics / The production of elastic waves by explosive pressures, 1, Theory and empirical field observations by Sharpe ((1942))
10.1785/BSSA0580061955 / Bull. Seism. Soc. Am. / Displacement on the San Andreas fault initiated by the 1966 Parkfield earthquake by Smith ((1968))
Wu F. T. (1966). Lower limit of the total energy of earthquakes and partitioning of energy among seismic waves, Ph.D. Thesis, California Institute of Technology.
10.1029/JB075i008p01529 / J. Geophys. Res. / Stress estimates of South American shallow and deep earthquakes by Wyss ((1970))
{'key': '2021091018212401700_BIB38', 'first-page': '591', 'article-title': 'The source parameters of the San Fernando earthquake inferred from teleseismic body waves', 'volume': '62', 'author': 'Wyss', 'year': '(1972)', 'journal-title': 'Bull. Seism. Soc. Am.'} / Bull. Seism. Soc. Am. / The source parameters of the San Fernando earthquake inferred from teleseismic body waves by Wyss ((1972))
10.1029/JB076i011p02716 / J. Geophys. Res. / Comparison of P-wave spectra of underground explosions and earthquakes by Wyss ((1971))

Dates

Type	When
Created	3 years, 11 months ago (Sept. 10, 2021, 2:21 p.m.)
Deposited	1 year, 9 months ago (Nov. 8, 2023, 12:16 p.m.)
Indexed	1 month, 1 week ago (July 26, 2025, 4:42 a.m.)
Issued	53 years, 5 months ago (April 1, 1972)
Published	53 years, 5 months ago (April 1, 1972)
Published Online	53 years, 5 months ago (April 1, 1972)
Published Print	53 years, 5 months ago (April 1, 1972)

Funders 0

None

BibTeX

@article{Hanks_1972, title={The use of body-wave spectra in the determination of seismic-source parameters}, volume={62}, ISSN={0037-1106}, url={http://dx.doi.org/10.1785/bssa0620020561}, DOI={10.1785/bssa0620020561}, number={2}, journal={Bulletin of the Seismological Society of America}, publisher={Seismological Society of America (SSA)}, author={Hanks, Thomas C. and Wyss, Max}, year={1972}, month=apr, pages={561–589} }

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      "article-title": "Scaling law of seismic spectrum",
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      "author": "Aki",
      "year": "(1967)",
      "journal-title": "J. Geophys. Res."
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      "first-page": "5359",
      "DOI": "10.1029/JB073i016p05359",
      "article-title": "Seismic displacements near a fault",
      "volume": "73",
      "author": "Aki",
      "year": "(1968)",
      "journal-title": "J. Geophys. Res."
    },
    {
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      "first-page": "1183",
      "DOI": "10.1785/BSSA0580031183",
      "article-title": "The Borrego Mountain, California, earthquake of 9 April 1968: A preliminary report",
      "volume": "58",
      "author": "Allen",
      "year": "(1968)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB5",
      "article-title": "Borrego Mountain earthquake: Foreshock, main shock, and larger aftershocks",
      "author": "Allen",
      "year": "(1971)",
      "journal-title": "U.S. Geol. Survey Professional Paper"
    },
    {
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      "first-page": "1751",
      "DOI": "10.1785/BSSA0590051751",
      "article-title": "The Dasht-e-Bay\u0101z (Iran) earthquake of August 31, 1968: A field report",
      "volume": "59",
      "author": "Ambraseys",
      "year": "(1969)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
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      "first-page": "521",
      "DOI": "10.1785/BSSA0590020521",
      "article-title": "The Mudurnu Valley, West Anatolia, Turkey, earthquake of 22 July 1967",
      "volume": "59",
      "author": "Ambraseys",
      "year": "(1969)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
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      "unstructured": "Archambeau C. B. (1964). Elastodynamic source theory, Ph.D. Thesis, California Institute of Technology."
    },
    {
      "key": "2021091018212401700_BIB9",
      "doi-asserted-by": "crossref",
      "first-page": "241",
      "DOI": "10.1029/RG006i003p00241",
      "article-title": "General theory of elastodynamic source fields",
      "volume": "6",
      "author": "Archambeau",
      "year": "(1968)",
      "journal-title": "Rev. Geophys."
    },
    {
      "key": "2021091018212401700_BIB10",
      "doi-asserted-by": "crossref",
      "first-page": "401",
      "DOI": "10.1785/BSSA0510030401",
      "article-title": "Radiation of seismic surface waves from finite moving sources",
      "volume": "51",
      "author": "Ben-Menahem",
      "year": "(1961)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB11",
      "doi-asserted-by": "crossref",
      "first-page": "2605",
      "DOI": "10.1029/JZ069i012p02605",
      "article-title": "Radiation patterns of seismic surface waves from buried dipolar point sources in a flat stratified earth",
      "volume": "69",
      "author": "Ben-Menahem",
      "year": "(1964)",
      "journal-title": "J. Geophys. Res."
    },
    {
      "key": "2021091018212401700_BIB12",
      "doi-asserted-by": "crossref",
      "first-page": "203",
      "DOI": "10.1785/BSSA0550020203",
      "article-title": "A procedure for source studies from spectrums of long-period seismic waves",
      "volume": "55",
      "author": "Ben-Menahem",
      "year": "(1965)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB13",
      "unstructured": "Berckhemer H. Jacob K. H. (1968). Investigation of the dynamical process in earthquake foci by analyzing the pulse shape of body waves, Final Sci. Rep. AF 61(052)-801, Air Force Cambridge Research Laboratories."
    },
    {
      "key": "2021091018212401700_BIB14",
      "doi-asserted-by": "crossref",
      "first-page": "4997",
      "DOI": "10.1029/JB075i026p04997",
      "article-title": "Tectonic stress and the spectra of seismic shear waves from earthquakes",
      "volume": "75",
      "author": "Brune",
      "year": "(1970)",
      "journal-title": "J. Geophys. Res."
    },
    {
      "key": "2021091018212401700_BIB15",
      "first-page": "5002",
      "article-title": "Correction (to Brune(1970))",
      "volume": "76",
      "author": "Brune",
      "year": "(1971)",
      "journal-title": "J. Geophys. Res."
    },
    {
      "key": "2021091018212401700_BIB16",
      "doi-asserted-by": "crossref",
      "first-page": "501",
      "DOI": "10.1785/BSSA0570030501",
      "article-title": "A low stress-drop, low magnitude earthquake with surface faulting: The Imperial, California, earthquake of March 4, 1966",
      "volume": "57",
      "author": "Brune",
      "year": "(1967)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB17",
      "doi-asserted-by": "crossref",
      "first-page": "1849",
      "DOI": "10.1785/BSSA0580061849",
      "article-title": "On the synthesis of shear-coupled PL waves",
      "volume": "58",
      "author": "Chander",
      "year": "(1968)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB18",
      "doi-asserted-by": "crossref",
      "first-page": "1823/1841",
      "DOI": "10.1785/BSSA0590051823",
      "article-title": "Aftershocks of the Dasht-e-Bay\u0101z, Iran, earthquake of August, 1968",
      "volume": "59",
      "author": "Crampin",
      "year": "(1969)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB19",
      "article-title": "Aftershocks of the Borrego Mountain earthquake, April 12 to June 12, 1968",
      "author": "Hamilton",
      "year": "(1971)",
      "journal-title": "U.S. Geol. Survey Professional Paper"
    },
    {
      "key": "2021091018212401700_BIB20",
      "doi-asserted-by": "crossref",
      "first-page": "1811",
      "DOI": "10.1785/BSSA05406A1811",
      "article-title": "Total energy and energy spectral density of elastic wave radiation from propagating faults",
      "volume": "54",
      "author": "Haskell",
      "year": "(1964)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB21",
      "doi-asserted-by": "crossref",
      "first-page": "865",
      "DOI": "10.1785/BSSA0590020865",
      "article-title": "Elastic displacements in the near-field of a propagating fault",
      "volume": "59",
      "author": "Haskell",
      "year": "(1969)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB22",
      "doi-asserted-by": "crossref",
      "first-page": "3229",
      "DOI": "10.1029/JB076i014p03229",
      "article-title": "Upper mantle structure of mid-western United States",
      "volume": "76",
      "author": "Helmberger",
      "year": "(1971)",
      "journal-title": "J. Geophys. Res."
    },
    {
      "key": "2021091018212401700_BIB23",
      "doi-asserted-by": "crossref",
      "first-page": "407",
      "DOI": "10.1111/j.1365-246X.1931.tb04462.x",
      "article-title": "On the cause of oscillatory movement in seismograms",
      "volume": "2",
      "author": "Jeffreys",
      "year": "(1931)",
      "journal-title": "Mon. Notic. Roy. Astron. Soc., Geophys. Suppl."
    },
    {
      "key": "2021091018212401700_BIB24",
      "doi-asserted-by": "crossref",
      "first-page": "339",
      "DOI": "10.1785/BSSA0580010339",
      "article-title": "Travel times, apparent velocities, and amplitudes of body waves",
      "volume": "58",
      "author": "Julian",
      "year": "(1968)",
      "journal-title": "Bull. Seism. Soc. Am."
    },
    {
      "key": "2021091018212401700_BIB25",
      "first-page": "473",
      "article-title": "The nature of seismic origins as inferred from seismological and geodetic observations",
      "volume": "35",
      "author": "Kasahara",
      "year": "(1957)",
      "journal-title": "Bull. Earthquake Res. Inst., Tokyo Univ."
    },
    {
      "key": "2021091018212401700_BIB26",
      "first-page": "29",
      "article-title": "Investigation of the mechanism of earthquakes",
      "volume": "4",
      "author": "Keilis-Borok",
      "year": "(1960)",
      "journal-title": "Soc. Res. Geophys."
    },
    {
      "key": "2021091018212401700_BIB27",
      "first-page": "278",
      "article-title": "Properties of recent earthquakes in the New Madrid seismic zone",
      "volume": "52",
      "author": "Kisslinger",
      "year": "(1971)",
      "journal-title": "Trans. Am. Geophys. Union"
    },
    {
      "key": "2021091018212401700_BIB28",
      "doi-asserted-by": "crossref",
      "first-page": "44",
      "DOI": "10.1111/j.1365-246X.1958.tb00033.x",
      "article-title": "Energy release in earthquakes",
      "volume": "1",
      "author": "Knopoff",
      "year": "(1958)",
      "journal-title": "Geophys. J."
    },
    {
      "key": "2021091018212401700_BIB29",
      "doi-asserted-by": "crossref",
      "first-page": "1843",
      "DOI": "10.1785/BSSA0590051843",
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      "author": "Niazi",
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      "article-title": "On the amplitudes of long period P waves (abstract)",
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      "author": "Nuttli",
      "year": "(1966)",
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      "volume-title": "Elementary Seismology",
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      "year": "(1958)"
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      "article-title": "The relation of corner frequency to fault dimensions",
      "author": "Savage",
      "year": "(1972)",
      "journal-title": "J. Geophys. Res."
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      "first-page": "2049",
      "DOI": "10.1029/JB074i008p02049",
      "article-title": "Seismic and aseismic slip on the San Andreas fault",
      "volume": "74",
      "author": "Scholz",
      "year": "(1969)",
      "journal-title": "J. Geophys. Res."
    },
    {
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      "first-page": "144",
      "DOI": "10.1190/1.1445002",
      "article-title": "The production of elastic waves by explosive pressures, 1, Theory and empirical field observations",
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      "year": "(1942)",
      "journal-title": "Geophysics"
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      "author": "Smith",
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      "journal-title": "Bull. Seism. Soc. Am."
    },
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      "unstructured": "Wu F. T. (1966). Lower limit of the total energy of earthquakes and partitioning of energy among seismic waves, Ph.D. Thesis, California Institute of Technology."
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      "article-title": "Stress estimates of South American shallow and deep earthquakes",
      "volume": "75",
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      "year": "(1970)",
      "journal-title": "J. Geophys. Res."
    },
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      "article-title": "The source parameters of the San Fernando earthquake inferred from teleseismic body waves",
      "volume": "62",
      "author": "Wyss",
      "year": "(1972)",
      "journal-title": "Bull. Seism. Soc. Am."
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      "DOI": "10.1029/JB076i011p02716",
      "article-title": "Comparison of P-wave spectra of underground explosions and earthquakes",
      "volume": "76",
      "author": "Wyss",
      "year": "(1971)",
      "journal-title": "J. Geophys. Res."
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