Skip to Main Content
Skip Nav Destination
GEOREF RECORD

Shaking intensity from injection-induced versus tectonic earthquakes in the central-eastern United States

Susan E. Hough
Shaking intensity from injection-induced versus tectonic earthquakes in the central-eastern United States (in Injection-induced seismicity, Robert Habiger (editor) and Gregory Beroza (editor))
Leading Edge (Tulsa, OK) (June 2015) 34 (6): 690-697

Abstract

Although instrumental recordings of earthquakes in the central and eastern United States (CEUS) remain sparse, the U. S. Geological Survey's "Did you feel it?" (DYFI) system now provides excellent characterization of shaking intensities caused by induced and tectonic earthquakes. Seventeen CEUS events are considered between 2013 and 2015. It is shown that for 15 events, observed intensities at epicentral distances greater than approximately 10 km are lower than expected given a published intensity-prediction equation for the region. Using simple published relations among intensity, magnitude, and stress drop, the results suggest that 15 of the 17 events have low stress drop. For those 15 events, intensities within approximately 10-km epicentral distance are closer to predicted values, which can be explained as a consequence of relatively shallow source depths. The results suggest that those 15 events, most of which occurred in areas where induced earthquakes have occurred previously, were likely induced. Although moderate injection-induced earthquakes in the central and eastern United States will be felt widely because of low regional attenuation, the damage from shallow earthquakes induced by injection will be more localized to event epicenters than shaking tectonic earthquakes, which tend to be somewhat deeper. Within approximately 10 km of the epicenter, intensities are generally commensurate with predicted levels expected for the event magnitude.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 34
Serial Issue: 6
Title: Shaking intensity from injection-induced versus tectonic earthquakes in the central-eastern United States
Title: Injection-induced seismicity
Author(s): Hough, Susan E.
Author(s): Habiger, Roberteditor
Author(s): Beroza, Gregoryeditor
Affiliation: U. S. Geological Survey, United States
Pages: 690-697
Published: 201506
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 9
Accession Number: 2015-087029
Categories: Environmental geologySeismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, geol. sketch map
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201537
Program Name: USGSOPNon-USGS publications with USGS authors
Close Modal

or Create an Account

Close Modal
Close Modal