Rolling Thunder Mine safety activity
MSHA violations, accident reports and inspections.
Safety activity
Inundation
Fatality
Accident narrative
A water inundation occurred on the No. 1 Section in the No. 1 Face near spad 1717. Resulted in a Fatal injury. Rescue crews located the fatally injured person on 11/13/2025.
Fire-resistant hydraulic fluids and fire suppression devices on underground equipment.
30 CFR 75.1107-1(a)(3)(ii) · $151.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $151.00 proposed penalty
Inspection of fire suppression devices.
30 CFR 75.1107-16(b) · $697.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $151.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $959.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $151.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $267.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $398.00 proposed penalty
Permissible exposure level.
30 CFR 62.130(a) · $151.00 proposed penalty
Permissible electric face equipment; maintenance.
30 CFR 75.503 · $165.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $209.00 proposed penalty
Methane monitors.
30 CFR 75.342(a)(4) · $151.00 proposed penalty
Permissible electric face equipment; maintenance.
30 CFR 75.503 · $366.00 proposed penalty
Regular Safety and Health Inspection
150.8 on-site hours reported
Handling of materials
Days away from work only
Accident narrative
Employee stated that they were in the #5 entry installing the last row of roof bolts, while manually bending a roof bolt, they stated that they felt a "pop" in right shoulder.
Non-Injury Accident Investigation
8.0 on-site hours reported
Violation — cited standard not reported
Fall of roof or back
Accident only
Accident narrative
A non-injury roof fall was discovered in the intersection at the #5 crosscut on Yankee Mains (No. 5 belt) in the N0. 4 entry. The fall was approximately 20' x 20' x 10' thick.
On-shift examination.
30 CFR 75.362(a)(2) · Significant and substantial (S&S) · $3,448.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $6,540.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $398.00 proposed penalty
On-shift examination.
30 CFR 75.362(g)(2)(i) · $151.00 proposed penalty
Loading and haulage equipment; operation.
30 CFR 77.1607(i) · Significant and substantial (S&S) · $697.00 proposed penalty
Permanent splicing of trailing cables.
30 CFR 75.604(b) · $209.00 proposed penalty
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.