Induced Seismicity in Western Canada Linked to Tectonic Strain Rate: Implications for Regional Seismic Hazard

2018 ◽  
Vol 45 (20) ◽  
Author(s):  
Honn Kao ◽  
Roy Hyndman ◽  
Yan Jiang ◽  
Ryan Visser ◽  
Brindley Smith ◽  
...  
Keyword(s):  
Seismic Hazard ◽  
Strain Rate ◽  
Induced Seismicity ◽  
Western Canada

Reactivation of an Intraplate Fault by Mine‐Blasting Events: Implications to Regional Seismic Hazard in Western Canada

2020 ◽  
Vol 125 (6) ◽  
Author(s):  
Ramin M. H. Dokht ◽  
Brindley Smith ◽  
Honn Kao ◽  
Ryan Visser ◽  
Jesse Hutchinson
Keyword(s):  
Seismic Hazard ◽  
Western Canada

scholarly journals A New Procedure for Evaluating Ground-Motion Models, with Application to Hydraulic-Fracture-Induced Seismicity in the United Kingdom

2020 ◽  
Vol 110 (5) ◽  
pp. 2380-2397 ◽  
Author(s):  
Gemma Cremen ◽  
Maximilian J. Werner ◽  
Brian Baptie
Keyword(s):  
Seismic Hazard ◽  
Ground Motion ◽  
Shale Gas ◽  
Hydraulic Fracture ◽  
Induced Seismicity ◽  
Ground Motions ◽  
Induced Earthquakes ◽  
Statistical Tool ◽  
Motion Models ◽  
Ground Motion Models

ABSTRACT An essential component of seismic hazard analysis is the prediction of ground shaking (and its uncertainty), using ground-motion models (GMMs). This article proposes a new method to evaluate (i.e., rank) the suitability of GMMs for modeling ground motions in a given region. The method leverages a statistical tool from sensitivity analysis to quantitatively compare predictions of a GMM with underlying observations. We demonstrate the performance of the proposed method relative to several other popular GMM ranking procedures and highlight its advantages, which include its intuitive scoring system and its ability to account for the hierarchical structure of GMMs. We use the proposed method to evaluate the applicability of several GMMs for modeling ground motions from induced earthquakes due to U.K. shale gas development. The data consist of 195 recordings at hypocentral distances (R) less than 10 km for 29 events with local magnitude (ML) greater than 0 that relate to 2018/2019 hydraulic-fracture operations at the Preston New Road shale gas site in Lancashire and 192 R<10  km recordings for 48 ML>0 events induced—within the same geologic formation—by coal mining near New Ollerton, North Nottinghamshire. We examine: (1) the Akkar, Sandikkaya, and Bommer (2014) models for European seismicity; (2) the Douglas et al. (2013) model for geothermal-induced seismicity; and (3) the Atkinson (2015) model for central and eastern North America induced seismicity. We find the Douglas et al. (2013) model to be the most suitable for almost all of the considered ground-motion intensity measures. We modify this model by recomputing its coefficients in line with the observed data, to further improve its accuracy for future analyses of the seismic hazard of interest. This study both advances the state of the art in GMM evaluation and enhances understanding of the seismic hazard related to U.K. shale gas development.

Predicting the Seismic Hazard Due to Deep Injection Well-Induced Seismicity

2014 ◽  
Author(s):  
Ali Fatehi ◽  
Richard Quittmeyer ◽  
Melih Demirkan ◽  
Jose Blanco ◽  
Jeffrey Kimball
Keyword(s):  
Seismic Hazard ◽  
Induced Seismicity ◽  
Injection Well

From Induced Seismicity to Direct Time-Dependent Seismic Hazard

2012 ◽  
Vol 102 (6) ◽  
pp. 2563-2573 ◽  
Author(s):  
V. Convertito ◽  
N. Maercklin ◽  
N. Sharma ◽  
A. Zollo
Keyword(s):  
Seismic Hazard ◽  
Induced Seismicity ◽  
Time Dependent

Impact of using updated seismic information on seismic hazard in western Canada

2010 ◽  
Vol 37 (4) ◽  
pp. 562-575 ◽  
Author(s):  
K. Goda ◽  
H. P. Hong ◽  
G. M. Atkinson
Keyword(s):  
Seismic Hazard ◽  
Recurrence Relations ◽  
Hazard Model ◽  
Sensitivity Analyses ◽  
Western Canada ◽  
Earthquake Catalog ◽  
Uniform Hazard Spectra ◽  
New Information ◽  
Proposed Model ◽  
The Impact

This study provides a preliminary assessment of the impact of new seismological information on the existing seismic hazard model, as implemented in the 2005 National building code of Canada (NBCC); this seismic hazard model was actually developed in the early 1990s, and thus there is significant new information available in the literature since then. A reassessment of seismic hazard is carried out by updating magnitude-recurrence relations based on the earthquake catalog up to the end of 2006, including conversion of all earthquake magnitudes to a homogenous moment magnitude scale. The recent ground-motion prediction equations, which update the knowledge base used in the 2005 NBCC, are also used. Focusing on Vancouver and Victoria, sensitivity analyses are carried out to investigate both individual and combined impacts of these updates on the uniform hazard spectra. The proposed model can be used as a guide to the direction in which future seismic hazard models for western Canada may move.

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