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Issues
Volume 90, Number 3
May/June 2019
ISSN 0895-0695
EISSN 1938-2057
OPINION
The Groningen Gasquakes: Foreseeable Surprises, Complications of Hard Science, and the Search for Effective Risk Communication
Seismological Research Letters March 06, 2019, Vol.90, 1071-1077. doi:https://doi.org/10.1785/0220180368
IN MEMORIAM
In Memoriam: Jim Agnew (1955–2018)
Seismological Research Letters April 10, 2019, Vol.90, 1078. doi:https://doi.org/10.1785/0220190070
ARTICLES
Hybrid Event Detection and Phase‐Picking Algorithm Using Convolutional and Recurrent Neural Networks
Seismological Research Letters April 10, 2019, Vol.90, 1079-1087. doi:https://doi.org/10.1785/0220180319
Characterizing Acoustic Signals and Searching for Precursors during the Laboratory Seismic Cycle Using Unsupervised Machine Learning
David C. Bolton; Parisa Shokouhi; Bertrand Rouet‐Leduc; Claudia Hulbert; Jacques Rivière; Chris Marone; Paul A. Johnson
Seismological Research Letters March 06, 2019, Vol.90, 1088-1098. doi:https://doi.org/10.1785/0220180367
The December 2018 5.7 and January 2019 5.3 Earthquakes in South Sichuan Basin Induced by Shale Gas Hydraulic Fracturing
Seismological Research Letters April 03, 2019, Vol.90, 1099-1110. doi:https://doi.org/10.1785/0220190029
Seismic and Aseismic Fault Slip Associated with the 2017 8.2 Chiapas, Mexico, Earthquake Sequence
Seismological Research Letters February 27, 2019, Vol.90, 1111-1120. doi:https://doi.org/10.1785/0220180262
3D Model Backprojection of the 2017 8.2 Chiapas Earthquake: A Two‐Stage Rupture with a Barrier‐Induced Velocity Increase
Seismological Research Letters March 27, 2019, Vol.90, 1121-1130. doi:https://doi.org/10.1785/0220180268
Did the Deadly 1917 Monterchi Earthquake Occur on the Low‐Angle Alto Tiberina (Central Italy) Normal Fault?
Seismological Research Letters February 27, 2019, Vol.90, 1131-1144. doi:https://doi.org/10.1785/0220180155
Traffic Light Systems: To What Extent Can Induced Seismicity Be Controlled?
Seismological Research Letters March 27, 2019, Vol.90, 1145-1154. doi:https://doi.org/10.1785/0220180337
Assessments of the Performance of the 2017 One‐Year Seismic‐Hazard Forecast for the Central and Eastern United States via Simulated Earthquake Shaking Data
Seismological Research Letters April 10, 2019, Vol.90, 1155-1167. doi:https://doi.org/10.1785/0220190007
The Current Unlikely Earthquake Hiatus at California’s Transform Boundary Paleoseismic Sites
Seismological Research Letters April 03, 2019, Vol.90, 1168-1176. doi:https://doi.org/10.1785/0220180244
Automated Quality Control for Large Seismic Networks: Implementation and Application to the AlpArray Seismic Network
Seismological Research Letters February 20, 2019, Vol.90, 1177-1190. doi:https://doi.org/10.1785/0220180342
Effects of Failure of the Ocean‐Bottom Seismograph Leveling System on Receiver Function Analysis
Seismological Research Letters April 10, 2019, Vol.90, 1191-1199. doi:https://doi.org/10.1785/0220180276
Lake‐Bottom Seismograph Observations of Microseisms in Yellowstone Lake
Seismological Research Letters April 03, 2019, Vol.90, 1200-1208. doi:https://doi.org/10.1785/0220180242
On the Feasibility of Using the Dense MyShake Smartphone Array for Earthquake Location
Seismological Research Letters April 10, 2019, Vol.90, 1209-1218. doi:https://doi.org/10.1785/0220180349
A Crustal Velocity Model for the Peninsular Ranges of Baja California and Southwestern Laguna Salada, Mexico
Erik Esteban Ramírez Ramos; José Antonio Vidal‐Villegas; Jorge Ramírez‐Hernández; Antonio González‐Fernández; Joann Miriam Stock
Seismological Research Letters March 13, 2019, Vol.90, 1219-1229. doi:https://doi.org/10.1785/0220180248
Shear‐Wave Velocity in the Seattle Basin to 2 km Depth Characterized with the Microtremor Array Method: Insights for Urban Basin‐Scale Imaging
Seismological Research Letters March 27, 2019, Vol.90, 1230-1242. doi:https://doi.org/10.1785/0220180194
From Earthquake Source Parameters to Ground‐Motion Warnings near You: The ShakeAlert Earthquake Information to Ground‐Motion (eqInfo2GM) Method
Seismological Research Letters March 20, 2019, Vol.90, 1243-1257. doi:https://doi.org/10.1785/0220180245
Engineering Seismological Parameters of Two 4.3 Intraplate Earthquakes in the Northern Rhine Area, Germany
Seismological Research Letters April 03, 2019, Vol.90, 1258-1267. doi:https://doi.org/10.1785/0220180265
Broadband (0–5 Hz) Fully Deterministic 3D Ground‐Motion Simulations of a Magnitude 7.0 Hayward Fault Earthquake: Comparison with Empirical Ground‐Motion Models and 3D Path and Site Effect...
Arthur J. Rodgers; N. Anders Petersson; Arben Pitarka; David B. McCallen; Bjorn Sjogreen; Norman Abrahamson
Seismological Research Letters February 27, 2019, Vol.90, 1268-1284. doi:https://doi.org/10.1785/0220180261
Systematic Determination of Focal Mechanisms over a Wide Magnitude Range: Insights from the Real‐Time FMNEAR Implementation in Chile from 2015 to 2017
Seismological Research Letters March 27, 2019, Vol.90, 1285-1295. doi:https://doi.org/10.1785/0220180322
The Application of Coda and Energy Methods for Magnitude Estimation of Microseismic Events
Seismological Research Letters April 03, 2019, Vol.90, 1296-1307. doi:https://doi.org/10.1785/0220180366
A Complete Automatic Procedure to Compile Reliable Seismic Catalogs and Travel‐Time and Strong‐Motion Parameters Datasets
Davide Scafidi; Daniele Spallarossa; Gabriele Ferretti; Simone Barani; Barbara Castello; Lucia Margheriti
Seismological Research Letters April 10, 2019, Vol.90, 1308-1317. doi:https://doi.org/10.1785/0220180257
Research on Parameter Calculation for the Ogata–Katsura 1993 Model in Terms of the Frequency–Magnitude Distribution Based on a Data‐Driven Approach
Seismological Research Letters April 03, 2019, Vol.90, 1318-1329. doi:https://doi.org/10.1785/0220180372
On the Apparently Inappropriate Use of Multiple Hypothesis Testing in Earthquake Prediction Studies
Seismological Research Letters April 10, 2019, Vol.90, 1330-1334. doi:https://doi.org/10.1785/0220180378
RETRACTION
Notice of Retraction: Preliminary Analysis of Strong Ground Motions in the Heavily Damaged Zone in Mashiki Town, Kumamoto, Japan, during the Mainshock of the 2016 Kumamoto Earthquake (...
Seismological Research Letters March 27, 2019, Vol.90, 1335. doi:https://doi.org/10.1785/0220190066
ELECTRONIC SEISMOLOGIST
A Reliable Strategy for Improving Automatic First‐Arrival Picking of High‐Noise Three‐Component Microseismic Data
Seismological Research Letters April 03, 2019, Vol.90, 1336-1345. doi:https://doi.org/10.1785/0220190038
DATA MINE
The 2016 7.8 Pedernales, Ecuador, Earthquake: Rapid Response Deployment
Anne Meltzer; Susan Beck; Mario Ruiz; Mariah Hoskins; Lillian Soto‐Cordero; Joshua C. Stachnik; Colton Lynner; Rob Porritt; Daniel Portner; Alexandra Alvarado; Stephen Hernandez; Hugo Yepes; Philippe Charvis; Yvonne Font; Marc Regnier; Hans Agurto‐Detzel; Andreas Rietbrock; Sergio Leon‐Rios; E. Diego Mercerat
Seismological Research Letters March 06, 2019, Vol.90, 1346-1354. doi:https://doi.org/10.1785/0220180364
Exotic Seismic Events Catalog (ESEC) Data Product
Seismological Research Letters April 10, 2019, Vol.90, 1355-1363. doi:https://doi.org/10.1785/0220180402
The Central Mongolia Seismic Experiment: Multiple Applications of Temporary Broadband Seismic Arrays
Anne Meltzer; Joshua C. Stachnik; Demberel Sodnomsambuu; Ulziibat Munkhuu; Baasanbat Tsagaan; Mungunsuren Dashdondog; Raymond Russo
Seismological Research Letters April 10, 2019, Vol.90, 1364-1376. doi:https://doi.org/10.1785/0220180360
EASTERN SECTION
Earthquake Early Warning Feasibility Study for the New Madrid Seismic Zone
Seismological Research Letters March 06, 2019, Vol.90, 1377-1392. doi:https://doi.org/10.1785/0220180163
Evidence for Large New Madrid Earthquakes about A.D. 0 and 1050 B.C., Central United States
Martitia P. Tuttle; Lorraine W. Wolf; Mary Evelyn Starr; Pilar Villamor; Robert H. Lafferty, III; Juliet E. Morrow; Robert J. Scott, Jr.; Steven L. Forman; Kathleen Hess; Kathleen Tucker; James Dunahue; Marion L. Haynes
Seismological Research Letters March 20, 2019, Vol.90, 1393-1406. doi:https://doi.org/10.1785/0220180371
Implementation of a Smoothed‐Seismicity Algorithm in Monte Carlo PSHA Software EqHaz and Implications for Localization of Hazard in the Western Canada Sedimentary Basin
Seismological Research Letters April 10, 2019, Vol.90, 1407-1419. doi:https://doi.org/10.1785/0220180284
Short‐Term Hindcasts of Seismic Hazard in the Western Canada Sedimentary Basin Caused by Induced and Natural Earthquakes
Seismological Research Letters April 10, 2019, Vol.90, 1420-1435. doi:https://doi.org/10.1785/0220180285
MEETING CALENDAR
Meeting Calendar
Seismological Research Letters April 10, 2019, Vol.90, 1436. doi:https://doi.org/10.1785/0220190077
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Cover Image
Cover Image
Front: On 16 December 2018, an ML 5.7 earthquake struck Xingwen County, Sichuan Province, China, and on 3 January 2019, an ML 5.3 earthquake occurred 8 km to the west, resulting in extensive damage to nearby structures. Lei et al. (this issue) reports that these earthquakes are the largest and most damaging in the Changning shale gas block, where 11 ML ≥ 4.0 events (including three ML ≥ 5.0) have been observed since hydraulic fracturing (HF) began in 2014. A 3D view (top) shows a simplified geological section overlapping with relocated hypocenters for observed earthquakes. The shaded image shows the landscape and well pads in which hydraulic fracturing was performed or is ongoing. The map view (bottom) shows active HF pads and three days of pre- and aftershocks of the 16 December 2018 ML 5.7 earthquake. The shaded area shows the change of Coulomb failure stress (ΔCFS) from the ML 5.7 earthquake to receiver faults of (strike, dip, rake) = (170, 83, 12) and depth of 2 km. ZJ indicates the location of Zhoujia village, which suffered the most extensive damage.
Back: By coincidence (and scaling) the acceleration response spectrum of the 2011 Goch (Germany) earthquake recorded at the 130 m level of the north tower of Cologne Cathedral follows the shape of this World Heritage Monument. Hinzen (this issue) describes the ground motion parameters of two similarly sized local earthquakes (ML 4.3) measured by a 40-station network with several stations with identical epicentral distances, including the five stations in the cathedral.
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