The phenomenon of induced seismicity has been recognized for decades; however, it has commanded significant new attention in the last five years. This is particularly true as it is related to unconventional hydrocarbon recovery methods that are seeing ...

Most people, including those who live there, regard Kansas as a seismically quiet place. Until a couple of years ago, hardly anyone I met from Kansas had felt an earthquake that had originated within the state. That all changed about 18 months ...

Earthquake activity in parts of the central United States has increased dramatically in recent years. The space-time distribution of the increased seismicity, as well as numerous published case studies, indicates that the increase is of ...

The sharp increase in seismicity over a broad region of central Oklahoma has raised concerns regarding the source of the activity and its potential hazard to local communities and energy-industry infrastructure. Efforts to monitor and ...

Fluid injection into deep wellbores can increase pore pressure, reduce effective stress, and trigger earthquakes. The extent of the seismogenic response to injection provides insight into how close faults are to failure in the injection-affected ...

Most of the seismicity in the Los Angeles Basin (LA Basin) occurs at depth below the sediments and is caused by transpressional tectonics related to the big bend in the San Andreas fault. However, some of the seismicity could be associated with ...

An increase in regional seismicity has been documented for the Horn River Basin (HRB) since the development of shale gas began in late 2006. Operational parameters of all hydraulic-fracturing (HF) treatments in the HRB between November 2006 and ...

Induced seismicity of the Groningen gas field is caused by the production of gas. Because of the large areal extent of the reservoir, the long history of depletion, and the available data sets (which exist as a result of consequences and public ...

In the Netherlands, seismicity is induced by the reactivation of faults because of the extraction of gas. The Dutch mining law requires a seismic-risk assessment as part of the license application process. For this purpose, a risk-assessment ...

The number of instances of induced seismicity associated with hydraulic fracturing has increased over the last few years, resulting in the development of industry protocols to mitigate seismic hazard. The main focus of these protocols is “traffic-...

Analysis of the spatiotemporal distribution of seismic events in Youngstown, Ohio, from previous studies has revealed that the seismicity was triggered by injection during January through December 2011 into a brine-disposal well (North Star #1 ...

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 ...

Three years ago, leaders from three major E&P societies spawned the idea of a collaborative event for the main disciplines of the asset teams that develop the unconventional resources that are expanding in North America and worldwide. The result is a ...

In Part 1 of this tutorial in the April 2015 issue of TLE, we loaded some logs and used a data framework called Pandas to manage them. We made a lithology-fluid-class (LFC) log and used it to color a crossplot. This month, we take the workflow further ...

This SEG Wiki interview, the fourth in the series, features Karl Schleicher, senior research fellow, Bureau of Economic Geology at the University of Texas at Austin. Schleicher joins Isaac Farley, SEG digital publications manager, to discuss open data in ...

The Editorial Calendar details upcoming (approximately one year in advance) publication plans for The Leading Edge. This includes all special sections, guest editors, and information about submitting articles to TLE.

This is the last President's Page I'll write during my three-year term as Director at large. In previous columns, I have commented on the “Great Crew Change” and the changing demographics of SEG and have advocated for diversity of representation. This is ...

In last month's FTOS, I mentioned the commuter rail in the San Francisco area. I said that the odds of my being under the bay if an earthquake hits was about one in 70. Clearly, the odds are greatly affected by the conditions I place or imply by the ...

The Women's Network Committee (WNC) is excited to follow April's inaugural “Full Spectrum” column on dual-career couples with an examination of the degree of gender diversity within SEG, focusing on leadership and honors and awards. Diversity is an asset; ...

This article provides news of recent past or upcoming SEG activities.

Board of Directors motions covered in the 10–11 February 2015 Board meeting.

The Calendar chronologically lists professional events of interest to SEG members and means by which further information can be obtained.

Applications for Active membership have been received from the listed candidates. This publication does not constitute election but places the names before the membership at large in accordance with SEG's Bylaws, Article III, Section 5. If any member has ...

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The advertising index for this month's issue.

Sam was on a subsurface team that matured one of the company's top prospects to drillable status. The seismic interpretation of this prospect involved a difficult jump correlation of the target section to the drilling location, from an area several tens ...