Mining Incidents

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Every injury and fatality MSHA has on file. Filter by state, year, sector, classification, experience, or any keyword from the investigator's narrative.

Total incidents
273,095
Of which fatal
1,202
Years on record
2000–2026
Classifications
20
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The record

591 total records

Showing 50 of 591
April 19, 2026 WY · Coal plumber, pipefitter, millwright POWERED HAULAGE
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

A millwright was moving parts with a knuckle boom when the controller was bumped resulting in an injury to the finger that required stitches.

March 20, 2026 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A grass fire started at the rail road tracks and spread to the mine property. The fire could not be put out within 30 minutes

January 22, 2026 WY · Coal blaster, shooter, shotfirer, explosive worker, powder gang/monkey SLIP OR FALL OF PERSON
Thunder Basin Coal Company LLC · Fall from ladders

The employee was dismounting the drill from the offside ladder. When on the last rung of the ladder, EE's foot slipped off and when EE landed on the uneven ground EE felt a pop in EE's ankle.

January 19, 2026 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A coal fire was located in the 5 west pit that could not be extinguished within 30 minutes

January 9, 2026 WY · Coal greaser, grease man, oiler, lube man, dragline oiler SLIP OR FALL OF PERSON
Thunder Basin Coal Company LLC · Fall onto or against objects

Employee tripped in the revolving frame of a dragline catching their fall with their right arm. Employee was diagnosed with a torn bicep tendon on 1/16/2026 and had a procedure on 1/22/2026 to repair the bicep tendon

December 23, 2025 WY · Coal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

while moving a part in the warehouse the employee lost their grip causing the part to move suddenly pinching finger and causing a laceration that required 6 stitches.

December 18, 2025 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

Employee was trimming a piece of plastic when knife slipped resulting in a laceration to left index finger requiring five stitches.

November 13, 2025 WY · Coal motorman, motor person, swamper, switchman, locomotive operator SLIP OR FALL OF PERSON
Thunder Basin Coal Company LLC · Fall to the walkway or working surface

Dark out with dry/calm weather conditions. Uneven walking surface with loose ballast and exposed rail ties.

November 5, 2025 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A coal fire was discovered in the 6 west spoils that could not be extinguished within 30 minutes

October 23, 2025 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A coal fire was discovered in the 5 west pit that could not be extinguished within 30 minutes

September 20, 2025 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A coal fire was discovered in the south pit that could not be extinguished within 30 minutes.

September 1, 2025 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A coal fire was discovered in the South Pit that could not be extinguished within 30 minutes

July 29, 2025 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Thunder Basin Coal Company LLC · Struck against stationary object

Employee slid out of seat on bus ride out to EE's equipment. When EE slid out of EE's seat EE hit EE's left side (ribs) on a lunchbox. Positive X-ray showed fractured ribs. Was released to work and returned EE's next scheduled shift.

June 11, 2025 WY · Coal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Thunder Basin Coal Company LLC · Fall from machine

A driver was stepping off truck step onto the lowboy when EE misplaced EE's footing, causing a small fall to the ground. Employee landed on EE's shoulders and struck back EE's head on the ground causing a small laceration on the back of the head, requiring one staple to repair laceration.

June 6, 2025 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Thunder Basin Coal Company LLC · Struck by flying object

While securing a load to the bed of a service truck with a ratchet strap the anchor point failed. the buckle from the strap struck the employee in the mouth damaging three teeth.

January 23, 2025 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in lifting objects

Employee needed to get a strap under a RAX link pin, so they could lift it up into place. They tried to lift one end of the pin to slide the strap under it. When employee lifted on the pin employee tore bicep and tendon.

December 29, 2024 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

bottom of a coal pit, discovered a small coal fire burning at toe of coal wall.

December 20, 2024 WY · Coal motorman, motor person, swamper, switchman, locomotive operator OTHER
Thunder Basin Coal Company LLC · Bodily reaction, (Not Elsewhere Classified)

Team member was making a squatting motion on level dry ground when what EE claimed to be EE's knee gave out and EE fell down to the ground. Outside conditions at the time were clear and sunny.

November 19, 2024 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Fall to the walkway or working surface

Snow and ice on haul road caused i.e. to slip and break their left ankle.

September 28, 2024 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in lifting objects

A Mechanic removed a fender from a bulk truck and with help lifted and placed the fender on the ground. After setting fender down mechanic felt pain in EE's back and sat down in hopes the pain would pass. Employee was transported to hospital and diagnosed with lumbar spasms and required to miss one day of work to rest.

September 11, 2024 WY · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Thunder Basin Coal Company LLC · Inhalation of radiations, caustics, toxic and noxious substances

Employee came into office 9/11/2024 claiming smoke inhalation from torching on material on mine site. Unknown time of return.

August 17, 2024 WY · Coal blaster, shooter, shotfirer, explosive worker, powder gang/monkey HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in lifting objects

Employee was operating a skid steer stemming holes on pattern. Once finished, the employee parked skid steer and went the lift the lap bar and exit skid steer. Employee received 1st Aid for pain in the right shoulder and returned to work. On 10/15/2024 , employees rotator cuff was repaired and was placed on leave by the medical provider.

August 4, 2024 WY · Coal utility man, shift tech, service/dump truck operator HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

An employee was making adjustments to a shovel bucket, when the stand kicked out from under the latch bar and it pinched the web of the employee's thumb, causing a laceration that required stitches.

July 16, 2024 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Thunder Basin Coal Company LLC · Struck against a moving object

An employee reported that EE's back was sore from a shovel dropping a bucket of material in EE's haul truck. EE continued working for two days and then went on days off. EE did not report to work on 7/26/2024 and began missing time.

July 14, 2024 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A grass fire started under the powerlines and burned for over 30 minutes. Five dead black birds were found at the ignition point, indicating they had caused a phase-to-phase arc flash.

June 16, 2024 WY · Coal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Thunder Basin Coal Company LLC · Struck against a moving object

An employee with a history of back injuries began experiencing increased pain and was taken in for evaluation on 06/16/2024. An MRI was schedule with a follow up appointment on 06/20/2024. A previously bulged disc and arthritis were diagnosed, and physical therapy was recommended to relieve nerve impingement, and EE began missing time.

June 11, 2024 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

Employee was getting a chain into position around body retaining pin to aid in pulling a lower strut pin. While holding the body retaining pin up placing chain into position, the pin slipped out of their hand. When pin fell it pinched their middle and ring finger of left hand between body retaining pin and differential housing.

June 4, 2024 WY · Coal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDTOOLS (NONPOWERED)
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

Employee was prepping a splice for vulcanization when the olfa knife employee was using slipped and contacted employee's arm. Employee was transported to the hospital and received stitches resulting in a recordable incident. Employee was released back to work full duty.

May 31, 2024 WY · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

A wash bay attendant got into the cab of a grader and the door closed on EE's finger.

March 28, 2024 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A powerline air switch arced and caused sparks that ignited a grass fire that burned for over 30 minutes.

March 24, 2024 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Thunder Basin Coal Company LLC · Over-exertion (Not Elsewhere Classified)

An employee slipped and injured EE's knee getting off a pit bus. EE continued working until 03/27/2024, at which time EE missed work to go have knee surgery.

March 21, 2024 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Thunder Basin Coal Company LLC · Fall from machine

Subject exited axle box on unit 192, the hand grab bar welds broke and employee fell to the ground, approximately 4 feet, landing on back.

February 15, 2024 WY · Coal IGNITION OR EXPLOSION OF GAS OR DUST
Thunder Basin Coal Company LLC · Accident type, without injuries

A millwright was thawing out an airhorn on an electric shovel with a small butane torch, when methanol sprayed out of a connection and was ignited by the torch. The flash caused burns to the employee's lower face and neck areas which were treated with First Aid.

January 12, 2024 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer DUST DISEASE OF LUNGS
Thunder Basin Coal Company LLC · Inhalation of radiations, caustics, toxic and noxious substances

A Part 90 Miner applied for short-term disability on 01/11/2024 and did not come to work on the next schedule shift, which was 01/12/2024.

December 27, 2023 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

A haul truck operator drove into the back of a haul truck that had stopped, crushing the cab and pinning EE under the steering column for about 1 hour. EE had nerve damage to EE's legs.

December 19, 2023 WY · Coal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver OTHER
Thunder Basin Coal Company LLC · Unclassified, insufficient data

A haul truck was driving erratically up a ramp. It stopped near the top, rolled back down into the left repose and tipped onto its side. The operator was found unresponsive, removed from the truck, and airlifted to a Medical Center. Driver died the following day from an apparent medical condition, as no injuries were found.

December 16, 2023 WY · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Thunder Basin Coal Company LLC · Fall down stairs

A wash bay technician was on a portable stairway, trying to remove a mud clod from the ripper frame of a track dozer. EE's hands slipped off and EE fell back on the concrete floor, fracturing two ribs.

December 4, 2023 WY · Coal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in lifting objects

Employee lifted a riffle drawer with coal and pulled something in their lower back.

October 29, 2023 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Thunder Basin Coal Company LLC · Fall onto or against objects

An employee was using a shovel to clean mud from the tracks of a dozer, when the shovel broke and the employee fell into the blade, cutting employee's ear.

October 20, 2023 WY · Coal greaser, grease man, oiler, lube man, dragline oiler SLIP OR FALL OF PERSON
Thunder Basin Coal Company LLC · Fall from ladders

A maintenance employee stepped from an IT loader to the third step of a 6' step ladder and fell to the concrete floor, bruising their hip. Employee was released by the doctor but did not report to work on 10/23/2023.

September 23, 2023 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

An area was seen smoldering at the top of an 85-foot coal wall. Dozers were used to push an access ramp in, so a water truck with surfactant could be applied to the area and extinguish it. The area burned for over 30 minutes.

September 8, 2023 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

A mechanic smashed their little finger between a track dozer and a jack handle.

August 29, 2023 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

Smoldering coal was found in five different areas of the coal mine. The apparent cause was spontaneous combustion from the recent rain, followed by hot dry weather. The areas were difficult to access, so they burned for over 30 minutes.

August 19, 2023 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

An area was seen smoldering at the top of an 85-foot coal wall. An elevated dirt ramp had to be constructed to get a water truck high enough to extinguish and seal the area, so it burned for over 30 minutes.

August 18, 2023 WY · Coal FIRE
Thunder Basin Coal Company LLC · Accident type, without injuries

A series of three grass fires started along the railroad tracks west of the mine property and burned onto the mine. It took firefighting personnel over 30 minutes to extinguish the flames.

Showing 50 of 591