2011-06-01_REPORT - C1980007

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 6/1/2011
• Doc Name: 4th Quarter 2010 Seismic Monitoring Report ‎(Emailed)‎
• From: Mountain Coal Company
• To: DRMS
• Permit Index Doc Type: Subsidence Report
• Email Name: TAK
• Media Type: D
• Archive: No

North Fork Valley Seismic Network — Fourth Quarter 2010
Wong, I.G. and McGarr, A., 1990, Implosional failure in mining- induced seismicity: A critical
review, in Rockbursts and Seismicity in Mines, Proceedings of the Second International
Symposium, C. Fairhurst (ed.), A.A. Balkema Publishers, p. 45 -51.
Im W:\X_WCFS \PROJECTS \WEST ELK -MTN COAL \2010 Q4 \Q4_2010_ MCC.DOC \18- MAR -1 1\ \OAK 6