Pechmann, J. C. and Arabasz, W. J. and Pankow, K. L. and Burlacu, R. and McCarter, M. K. (2008) Seismological Report on the 6 August 2007 Crandall Canyon Mine Collapse in Utah. Seismological Research Letters, 79 (5). pp. 620-636. DOI: https://doi.org/10.1785/gssrl.79.5.620
Full text not available from this repository.Abstract
At 2:48 a.m. local time (MDT; 08:48 UTC) on 6 August 2007, a major collapse occurred in the Crandall Canyon coal mine in east-central Utah. This collapse resulted in the deaths of six miners who were working underground in the area of the collapse. Ten days later, a much smaller collapse in this mine killed three rescue workers and injured six others (Stricklin 2007). A local magnitude (ML) 3.9 seismic event occurred at approximately the same time and place as the Crandall Canyon Mine collapse. Seismological evidence summarized in this paper and in a companion paper by Ford et al. (2008, this issue of SRL) indicates that most of the seismic wave energy in this event was generated by the mine collapse and not by a naturally occurring earthquake. The ML 3.9 event was preceded and followed by numerous smaller (ML ≤ 2.5) seismic events in the same area, most of which are probably mining-related as well. These events include an ML 1.6 shock associated with the coal burst that killed the three rescuers. For convenience, we will refer to the ML 3.9 event as the Crandall Canyon Mine “main shock” and to the events that followed it as “aftershocks,” even though these terms are normally used for naturally occurring earthquakes. There is a high-quality data set for the Crandall Canyon Mine seismic events from surrounding stations of the University of Utah regional seismic network, a five-station temporary network that we deployed in the mine area after the 6 August collapse, the National Science Foundation EarthScope Transportable Array, and other networks. In this paper, we analyze the seismological data for the Crandall Canyon Mine main shock and for preceding events and aftershocks in order to gain a better understanding of these events and …
| Item Type: | Article |
|---|---|
| Subjects: | Methodology > Method and procesing > Collective properties of seismicity Region > USA > Utah > Emery County Inducing technology > Underground mining |
| Project: | IS-EPOS project |