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Volume 92, Number 6
November 2021
Issue Cover
ISSN: 0895-0695
EISSN: 1938-2057

Opinion

What Is an Exceptional Earthquake?
Gianluca Valensise; Emanuela Guidoboni; Iunio Iervolino
View articletitled, What Is an Exceptional Earthquake?
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In Memoriam

J. Carl Stepp (1932–2021)
Robin McGuire; Ivan Wong; Gabriel Toro; William Lettis
View articletitled, J. Carl Stepp (1932–2021)
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Articles

Rupture Kinematics of the 11 January 2021 Mw 6.7 Hovsgol, Mongolia, Earthquake and Implications in the Western Baikal Rift Zone
Gang Liu; Xuejun Qiao; Pengfei Yu; Yu Zhou; Bin Zhao; Wei Xiong
View articletitled, Rupture Kinematics of the 11 January 2021 <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub></math></span> 6.7 Hovsgol, Mongolia, Earthquake and Implications in the Western Baikal Rift Zone
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The 2019 Ms 4.2 and 5.2 Beiliu Earthquake Sequence in South China: Complex Conjugate Strike‐Slip Faulting Revealed by Rupture Directivity Analysis
Xiaohui He; Hao Liang; Peizhen Zhang; Yue Wang
View articletitled, The 2019 <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">s</mi></msub></math></span> 4.2 and 5.2 Beiliu Earthquake Sequence in South China: Complex Conjugate Strike‐Slip Faulting Revealed by Rupture Directivity Analysis
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Source Characteristics of the 2019 Mw 6.5 Ambon, Eastern Indonesia, Earthquake Inferred from Seismic and Geodetic Data
Irwan Meilano; Rino Salman; Suchi Rahmadani; Qibin Shi; Susilo Susilo; Eric Lindsey; Pepen Supendi; Daryono Daryono
View articletitled, Source Characteristics of the 2019 <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub></math></span> 6.5 Ambon, Eastern Indonesia, Earthquake Inferred from Seismic and Geodetic Data
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Loreto Intermediate Depth Earthquake of 26 May 2019 (Northeast Peru): Source Parameters by Inversion of Local to Regional Waveforms and Strong‐Motion Observations
Hernando Tavera; Bertrand Delouis; Arturo Mercado; David Portugal
View articletitled, Loreto Intermediate Depth Earthquake of 26 May 2019 (Northeast Peru): Source Parameters by Inversion of Local to Regional Waveforms and Strong‐Motion Observations
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Assessment of the Seismic Hazards of the Marikina Valley Fault from 2019 Mw 6.1 Castillejos Earthquake and Historical Events
Ying‐Hui Yang; Min‐Chien Tsai; Jyr‐Ching Hu; Qiang Chen; Mario Aurelio; Qian Xu; Ziqin Jiang; Lang Xu; Chao Yang; Lin Li
View articletitled, Assessment of the Seismic Hazards of the Marikina Valley Fault from 2019 <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub></math></span> 6.1 Castillejos Earthquake and Historical Events
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Path Calibration of the Democratic People’s Republic of Korea 3 September 2017 Nuclear Test
Douglas S. Dreger; Roland Gritto; Owen Nelson
View articletitled, Path Calibration of the Democratic People’s Republic of Korea 3 September 2017 Nuclear Test
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Joint Inversion of Rupture across a Fault Stepover during the 8 August 2017 Mw 6.5 Jiuzhaigou, China, Earthquake
Yong Zhang; Wanpeng Feng; Xingxing Li; Yajing Liu; Jieyuan Ning; Qinghua Huang
View articletitled, Joint Inversion of Rupture across a Fault Stepover during the 8 August 2017 <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub></math></span> 6.5 Jiuzhaigou, China, Earthquake
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Focal Mechanisms of West Bohemia, Central Europe, Earthquakes—End of May 2014: Evidence of Volume Changes
Dana Křížová; Jiří Málek
View articletitled, Focal Mechanisms of West Bohemia, Central Europe, Earthquakes—End of May 2014: Evidence of Volume Changes
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Inferring Critical Slip‐Weakening Distance from Near‐Fault Accelerogram of the 2014 Mw 6.2 Ludian Earthquake
Xiang Chen; Hongfeng Yang; Mingpei Jin
View articletitled, Inferring Critical Slip‐Weakening Distance from Near‐Fault Accelerogram of the 2014 <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub></math></span> 6.2 Ludian Earthquake
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The 9 October 1963 Vajont Catastrophe from the Point of View of the WWSSN‐LP Recordings of the TRI‐117 Station, Trieste, Italy
Stefano Parolai; Denis Sandron; Alessandro Rebez
View articletitled, The 9 October 1963 Vajont Catastrophe from the Point of View of the WWSSN‐LP Recordings of the TRI‐117 Station, Trieste, Italy
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The Role of Site Conditions on the Structural Damage in the City of Valdivia during the 22 May 1960 Mw 9.5 Megathrust Chile Earthquake
César Pastén; Felipe Campos; Felipe Ochoa‐Cornejo; Sergio Ruiz; Galo Valdebenito; David Alvarado; Felipe Leyton; Ricardo Moffat
View articletitled, The Role of Site Conditions on the Structural Damage in the City of Valdivia during the 22 May 1960 <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub></math></span> 9.5 Megathrust Chile Earthquake
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The Oldest Report of a 1537 Mexico Tsunami Based on Japanese Literature Is Erroneous
Yutaka Hayashi
View articletitled, The Oldest Report of a 1537 Mexico Tsunami Based on Japanese Literature Is Erroneous
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Seismic Moment Tensor Inversion of an Induced Microseismic Event, Offshore Norway: An Insight into the Possible Cause of Wellbore Liner Failure during a Drilling Operation
Zoya Zarifi; Fredrik Hansteen; Florian Schopper
View articletitled, Seismic Moment Tensor Inversion of an Induced Microseismic Event, Offshore Norway: An Insight into the Possible Cause of Wellbore Liner Failure during a Drilling Operation
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Probabilistic Forecasting of Hydraulic Fracturing‐Induced Seismicity Using an Injection‐Rate Driven ETAS Model
Simone Mancini; Maximilian Jonas Werner; Margarita Segou; Brian Baptie
View articletitled, Probabilistic Forecasting of Hydraulic Fracturing‐Induced Seismicity Using an Injection‐Rate Driven ETAS Model
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Intensity of Induced Earthquakes in Northeast British Columbia, Canada
Alireza Babaie Mahani; Stuart Venables; Honn Kao; Ryan Visser; Michelle Gaucher; Ramin M. H. Dokht; Jeff Johnson
View articletitled, Intensity of Induced Earthquakes in Northeast British Columbia, Canada
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CCLoc—An Improved Interferometric Seismic Event Location Algorithm Applied to Induced Seismicity
Martin Gal; Ernest Lotter; Gerrit Olivier; Mark Green; Stephen Meyer; Phil Dales; Anya M. Reading
View articletitled, CCLoc—An Improved Interferometric Seismic Event Location Algorithm Applied to Induced Seismicity
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Characteristics of Seismicity in the Eagle Ford Shale Play, Southern Texas, Constrained by Earthquake Relocation and Centroid Moment Tensor Inversion
Peng Li; Guo‐Chin D. Huang; Alexandros Savvaidis; Florentia Kavoura; Robert W. Porritt
View articletitled, Characteristics of Seismicity in the Eagle Ford Shale Play, Southern Texas, Constrained by Earthquake Relocation and Centroid Moment Tensor Inversion
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Wastewater Disposal Has Not Significantly Altered the Regional Stress State in Southern Kansas
Robert J. Skoumal; Elizabeth S. Cochran
View articletitled, Wastewater Disposal Has Not Significantly Altered the Regional Stress State in Southern Kansas
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Quick and Dirty (and Accurate) 3D Paleoseismic Trench Models Using Coded Scale Bars
Jaime E. Delano; Rich W. Briggs; Christopher B. DuRoss; Ryan D. Gold
View articletitled, Quick and Dirty (and Accurate) 3D Paleoseismic Trench Models Using Coded Scale Bars
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Contamination of Frequency–Magnitude Slope (⁠b‐Value) by Quarry Blasts: An Example for Italy
Laura Gulia; Paolo Gasperini
View articletitled, Contamination of Frequency–Magnitude Slope (<span class="inline-formula no-formula-id">⁠<span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><mi xmlns="">b</mi></math></span>‐Value) by Quarry Blasts: An Example for Italy
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Monotonic Neural Network for Ground‐Motion Predictions to Avoid Overfitting to Recorded Sites
Tomohisa Okazaki; Nobuyuki Morikawa; Hiroyuki Fujiwara; Naonori Ueda
View articletitled, Monotonic Neural Network for Ground‐Motion Predictions to Avoid Overfitting to Recorded Sites
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Rupture Models of Recent Mw>7 Thrust Earthquakes in the Guerrero–Oaxaca Region of the Mexico Subduction Zone Using Teleseismic Body Waves
Carlos Mendoza; M. Rosario Martínez‐López
View articletitled, Rupture Models of Recent <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub><mo xmlns="">&gt;</mo><mn xmlns="">7</mn></math></span> Thrust Earthquakes in the Guerrero–Oaxaca Region of the Mexico Subduction Zone Using Teleseismic Body Waves
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A Testable Worldwide Earthquake Faulting Mechanism Model
Matteo Taroni; Jacopo Selva
View articletitled, A Testable Worldwide Earthquake Faulting Mechanism Model
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Ambient Noise Level in Eastern North China from ChinArray and Its Response to COVID‐19
Weilai Wang; Guangyao Cai; Guijuan Lai; Mingfei Chen; Long Zhang
View articletitled, Ambient Noise Level in Eastern North China from ChinArray and Its Response to COVID‐19
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Can Seismic Strain Waves Be Measured Quantitatively by Borehole Tensor Strainmeters?
Kanghua Zhang; Jiayong Tian; Zhifei Hu
View articletitled, Can Seismic Strain Waves Be Measured Quantitatively by Borehole Tensor Strainmeters?
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Development of a Compact Broadband Ocean‐Bottom Seismometer
Masanao Shinohara; Tomoaki Yamada; Hajime Shiobara; Yusuke Yamashita
View articletitled, Development of a Compact Broadband Ocean‐Bottom Seismometer
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Seismic Wave Propagation and Basin Amplification in the Wasatch Front, Utah
Morgan P. Moschetti; David Churchwell; Eric M. Thompson; John M. Rekoske; Emily Wolin; Oliver S. Boyd
View articletitled, Seismic Wave Propagation and Basin Amplification in the Wasatch Front, Utah
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Short‐Period Surface‐Wave Tomography in the Continental United States—A Resource for Research
Robert B. Herrmann; Charles J. Ammon; Harley M. Benz; Asiye Aziz‐Zanjani; Joshua Boschelli
View articletitled, Short‐Period Surface‐Wave Tomography in the Continental United States—A Resource for Research
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A MERMAID Miscellany: Seismoacoustic Signals beyond the P Wave
Joel D. Simon; Frederik J. Simons; Jessica C. E. Irving
View articletitled, A MERMAID Miscellany: Seismoacoustic Signals beyond the <em>P</em> Wave
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Volcanic Tremor Extraction and Earthquake Detection Using Music Information Retrieval Algorithms
Zahra Zali; Matthias Ohrnberger; Frank Scherbaum; Fabrice Cotton; Eva P. S. Eibl
View articletitled, Volcanic Tremor Extraction and Earthquake Detection Using Music Information Retrieval Algorithms
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Identification of and Favorable Conditions for a New Long‐Offset Seismic Phase from Offshore–Onshore Seismic Surveys
Changrong Zhang; Shaohong Xia; Jinghe Cao; Kuiyuan Wan; Cheng Xiong
View articletitled, Identification of and Favorable Conditions for a New Long‐Offset Seismic Phase from Offshore–Onshore Seismic Surveys
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Uncertainties in Seismic Moment Tensors Inferred from Differences between Global Catalogs
Boris Rösler; Seth Stein; Bruce D. Spencer
View articletitled, Uncertainties in Seismic Moment Tensors Inferred from Differences between Global Catalogs
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Multiscale Temporal and Spatial Estimation of the b‐Value
Rubén García‐Hernández; Luca D’Auria; José Barrancos; Germán D. Padilla; Nemesio M. Pérez
View articletitled, Multiscale Temporal and Spatial Estimation of the <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><mi xmlns="">b</mi></math></span>‐Value
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Toward False Event Detection and Quarry Blast versus Earthquake Discrimination in an Operational Setting Using Semiautomated Machine Learning
Alexandra Renouard; Alessia Maggi; Marc Grunberg; Cécile Doubre; Clément Hibert
View articletitled, Toward False Event Detection and Quarry Blast versus Earthquake Discrimination in an Operational Setting Using Semiautomated Machine Learning
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Near‐Fault Monitoring Reveals Combined Seismic and Slow Activation of a Fault Branch within the Istanbul–Marmara Seismic Gap in Northwest Turkey
Patricia Martínez‐Garzón; Virginie Durand; Stephan Bentz; Grzegorz Kwiatek; Georg Dresen; Taylan Turkmen; Murat Nurlu; Marco Bohnhoff
View articletitled, Near‐Fault Monitoring Reveals Combined Seismic and Slow Activation of a Fault Branch within the Istanbul–Marmara Seismic Gap in Northwest Turkey
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Seismogenic Faults of the Changning Earthquake Sequence Constrained by High‐Resolution Seismic Profiles in the Southwestern Sichuan Basin, China
Renqi Lu; Dengfa He; Jing‐Zeng Liu; Wei Tao; Hanyu Huang; Fang Xu; Guanshen Liu
View articletitled, Seismogenic Faults of the Changning Earthquake Sequence Constrained by High‐Resolution Seismic Profiles in the Southwestern Sichuan Basin, China
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A Composite Catalog of Damaging Earthquakes for Mainland China
Yilong Li; Zhenguo Zhang; Danhua Xin
View articletitled, A Composite Catalog of Damaging Earthquakes for Mainland China
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High‐Definition Mapping of the Gutenberg–Richter b‐Value and Its Relevance: A Case Study in Italy
Matteo Taroni; Jiancang Zhuang; Warner Marzocchi
View articletitled, High‐Definition Mapping of the Gutenberg–Richter <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><mi xmlns="">b</mi></math></span>‐Value and Its Relevance: A Case Study in Italy
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Near‐Real‐Time Damage Estimation for Buildings Based on Strong‐Motion Recordings: An Application to Target Areas in Northeastern Italy
Chiara Scaini; Bojana Petrovic; Alberto Tamaro; Luca Moratto; Stefano Parolai
View articletitled, Near‐Real‐Time Damage Estimation for Buildings Based on Strong‐Motion Recordings: An Application to Target Areas in Northeastern Italy
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Erratum

Erratum to Near‐Real‐Time Damage Estimation for Buildings Based on Strong‐Motion Recordings: An Application to Target Areas in Northeastern Italy
Chiara Scaini; Bojana Petrovic; Alberto Tamaro; Luca Moratto; Stefano Parolai
View articletitled, <em>Erratum to </em>Near‐Real‐Time Damage Estimation for Buildings Based on Strong‐Motion Recordings: An Application to Target Areas in Northeastern Italy
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Eastern Section

Identifying Direct SP‐Converted Waves Constrains Local Induced Earthquake Depths
Keith A. Nolte; George P. Tsoflias
View articletitled, Identifying Direct <em>SP</em>‐Converted Waves Constrains Local Induced Earthquake Depths
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Electronic Seismologist

ANISOtime: Traveltime Computation Software for Laterally Homogeneous, Transversely Isotropic, Spherical Media
Kensuke Konishi; Anselme F. E. Borgeaud; Kenji Kawai; Robert J. Geller
View articletitled, ANISOtime: Traveltime Computation Software for Laterally Homogeneous, Transversely Isotropic, Spherical Media
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PolarGUI: A MATLAB‐Based Tool for Polarization Analysis of the Three‐Component Seismic Data Using Different Algorithms
Huailiang Li; Kai Qu; Wenzheng Rong; Xianguo Tuo; Jing Lu; Ruili Wang; Xuben Wang; Jérémie Courtois
View articletitled, PolarGUI: A MATLAB‐Based Tool for Polarization Analysis of the Three‐Component Seismic Data Using Different Algorithms
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On‐the‐Fly Full Hessian Kernel Calculations Based upon Seismic‐Wave Simulations
Yujiang Xie; Catherine A. Rychert; Nicholas Harmon; Qinya Liu; Dirk Gajewski
View articletitled, On‐the‐Fly Full Hessian Kernel Calculations Based upon Seismic‐Wave Simulations
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Visualizing Global Seismic Phases with AlpArray
On Ki Angel Ling; Simon C. Stähler; Domenico Giardini; the AlpArray Working Group
View articletitled, Visualizing Global Seismic Phases with AlpArray
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Historical Seismologist

The First Written Accounts of Pre‐Hispanic Earthquakes in the Americas
Gerardo Suárez; Virginia García‐Acosta
View articletitled, The First Written Accounts of Pre‐Hispanic Earthquakes in the Americas
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Eduquakes

Instrument Response Removal and the 2020 MLg 3.1 Marlboro, New Jersey, Earthquake
Alexander L. Burky; Jessica C. E. Irving; Frederik J. Simons
View articletitled, Instrument Response Removal and the 2020 <span class="inline-formula no-formula-id"><span class="mathFormula"></span><math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi>Lg</mi></msub></math></span> 3.1 Marlboro, New Jersey, Earthquake
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Why Do My Squiggles Look Funny? A Gallery of Compromised Seismic Signals
Adam T. Ringler; David B. Mason; Gabi Laske; Tyler Storm; Mary Templeton
View articletitled, Why Do My Squiggles Look Funny? A Gallery of Compromised Seismic Signals
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Earthquake Lites

When Punjab Cried Wolf: How a Rumor Triggered an “Earthquake” in India
Stacey S. Martin; Rémy Bossu; Robert Steed; Matthieu Landès; Davuluri Srinagesh; Dakuri Srinivas; Susan E. Hough
View articletitled, When Punjab Cried Wolf: How a Rumor Triggered an “Earthquake” in India
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Book Review

Review of Viscoelastic Waves and Rays in Layered Media
Andreas Fichtner
View articletitled, Review of <em>Viscoelastic Waves and Rays in Layered Media</em>
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News and Notes

SSA News and Notes
View articletitled, SSA News and Notes
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  • Cover Image

    Cover Image

    issue cover

    On September 8 (Sept. 7, local time), 2021, as we were getting this issue of SRL ready to go to press, a magnitude (Mw) 7.0 earthquake causing significant damage occurred near Acapulco, Mexico, very close to the infamous Guerrero Gap. The cover image shows damage to a hotel in Acapulco. Although it is too soon for research papers on the 2021 earthquake, we would like to draw your attention to two articles in this issue (Suarez and Garcia-Acosta, and Mendoza and Martinez-Lopez) focusing on earthquakes in the Guerrero region of Mexico.

    Image credit: David Guzmán/EPA-EFE/Shutterstock

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  • Online ISSN 1938-2057
  • ISSN 0895-0695
  • Copyright © 2025 Seismological Society of America
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