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
Filters 2 active
Time period
Experience at time of incident

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The record

165 matching records

Showing 50 of 165
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.

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.

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.

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.

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.

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.

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 20, 2022 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

An employee was lowering a folding handrail and caught EE's ring finger in a pinch-point, resulting in an avulsion of the tip.

March 5, 2022 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion (Not Elsewhere Classified)

The employee felt a pop in the knee while getting into a pickup truck. EE continued to work until was diagnosed with a ruptured ACL on 3/11/22 and began losing time.

October 23, 2021 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Fall from machine

Employee was preparing to drain oil from swing case of machine. Employee fell approximately 7 feet to ground sustaining multiple injuries.

September 20, 2021 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

Tech was moving a heavy turbo from part cart to the back of the service truck bumper. The right pinky finger was smashed in between the turbo and the bumper. Tech has a fractured pinky.

April 23, 2021 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

The employee was placing a large wood block onto the fender of a forklift, when the block bounce up and pinch EE's two finger tips between the block and the forklift fender. This resulted in a tuft fracture and lacerations that required stitches.

October 10, 2020 WY · Coal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in lifting objects

Employee reports they were dumping approximately 30 lbs of coal on a pile with a twisting motion. Employee then felt pain. Employee informed management on 10-16-2020. Letter attached to original form for further information.

December 28, 2019 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in pulling or pushing objects

An equipment operator experienced a non-displaced fracture to a bone in the right shoulder when pulling on the cab door of the electric shovel.

November 8, 2019 WY · Coal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

A warehouse supervisor was moving a large battery from a wheeled cart onto a pallet, when the battery slipped off the edge and caught the supervisor's finger between the cart and the battery, causing a laceration that required stitches.

October 4, 2019 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by falling object

A Technician was in the process of replacing a rear strut on a 798 haul truck. As they removed the lower rear strut pin, the lower section of strut fell. This was caused by an unknown internal failure which allowed the lower section of strut to fall hitting the Technician in the leg.

November 29, 2018 WY · Coal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

An employee was attempting to disconnect a 4 inch hose secured by camlock fittings. The employee opened the ears and was attempting to disconnect it by holding onto the hose with both hands and wiggling it off. Once the hose came free, the end of the hose hit the employee in the mouth, breaking a tooth.

June 10, 2018 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

A mechanic caged and removed a brake can that needed replaced from a truck. The mechanic had the old brake can on the shop floor and was in the process of removing the cage bolt. The mechanic attempted to relieve some of the air pressure, however the air pressure released quicker than expected, resulting in the cage bolt/nut pinching the mechanics finger. 6 stitches req'd.

May 21, 2018 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 plant technician strained their back and shoulder moving a bearing on 05/21/2018. They continued to work at full duty until they had shoulder surgery on 01/18/2019. They began losing time on 01/25/2019.

March 21, 2018 WY · Coal welder (non-shop) HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in pulling or pushing objects

Injured employee was dragging welding leads behind them when they became lodged under a stationary tire. This jerked employee's arm and injured the shoulder.

March 16, 2018 WY · Coal motorman, motor person, swamper, switchman, locomotive operator HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion (Not Elsewhere Classified)

On 3/16 at 1530 employee secured train returned to cab, felt pain in back, at the time employee refused all medical treatment. The Next day, went to the clinic. Was released back to work with no restrictions and no loss of time. On 3/19, employee went back for a follow up appt. Did receive additional medical treatment. At that point made it reportable.

October 3, 2017 WY · Coal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in lifting objects

employee was removing sample from sampling system. As employee pulled the sample out, it was too heavy for employee and employee strained lower back

September 29, 2017 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

The mechanic was guiding the left front spindle assembly into position on a motor grader when the assembly suddenly slipped into place pinching the mechanic's gloved left ring finger between the spindle and the frame. This resulted in a laceration requiring stitches.

July 15, 2017 WY · Coal coal/ore shovel operator, shoveler, power shoveler HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by falling object

The equipment operator was assisting electricians remove a cover from on top the RPC cabinet when the cover fell to the floor, bouncing and hitting the operator. This resulted in a laceration to the inside of the right calf muscle requiring stitches.

May 30, 2017 WY · Coal outside foreman, leadman HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

Employee was assisting another employee with the dovetail of a trailer to add an extension to lengthen the trailer when the incident occurred. There is a handle on the dovetail but it was stuck so employees put hands underneath to pull up on it and the stand that is underneath came swinging back pinching employee's left middle finger. This resulted in a nine stitch repair.

May 30, 2017 WY · Coal motorman, motor person, swamper, switchman, locomotive operator HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion (Not Elsewhere Classified)

Team member was climbing the ladder on the locomotive. Team member reported that EE heard popping noise in the right wrist. Poor body mechanics.

April 24, 2017 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion (Not Elsewhere Classified)

The IE was working in an engine compartment of a 795 haul truck when ee lost balance. When ee grabbed the deck of the truck to catch balance the twisting motion on shoulder caused it to pop.

February 1, 2017 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Absorption of radiations, caustics, toxic and noxious substances

Crew was dipping center pin of shovel in liquid nitrogen when it started to bubble out of the tank coming into contact with employee's left hand.

January 28, 2017 WY · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

Two millwrights were removing a dragline swing pinion retainer plate when the plate slipped from their grip, resulting in a crushing/fracture of the left little finger for one of the technicians.

April 22, 2016 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by falling object

Employee was struck in arm by boom after cylinder failure caused boom to drop to bed. Employee was bruised and received 2 stitches.

December 3, 2015 WY · Coal outside foreman, leadman HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Over-exertion in lifting objects

While lifting/pulling a conveyor belt wiper, the employee's shoulder was dislocated. The employee underwent 2 medical procedures to have the shoulder put back in position.

October 29, 2015 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 sample bag to put it in the back of the truck and felt shoulder pop. NO scheduled work shifts missed. 11/23/2015 EE went to the Chiropractor for evaluation, and was assigned to light duty. 02/29/2016 Doctor return to work statement- do not lift over 25 lbs. 03/14/2016 Doctor's evaluation - return to regular duty

October 15, 2015 WY · Coal utility man, shift tech, service/dump truck operator HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between two or more moving objects

The rescue team was conducting plant fire system familiarization training when a technician's hand was pinched/smashed between the upper and lower sections of the elevator door while pulling it closed. The result was a fractured right index finger.

August 30, 2015 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

A 2" X 10' web sling was laying across the hood of the dozer with a 3/4" shackle attached to one end and the other end on the OH crane hook. The mechanic was pulling the sling across the hood when the shackle struck him in the mouth. The result was a broken upper left tooth.

July 21, 2015 WY · Coal electrician, lineman HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

The electrician was in the process of opening an 8KV disconnect switch on a substation when his hand slipped off of the throw handle causing the handle to recoil, striking him on the right lower lip. The result was a laceration requiring stitches and a very minor chip of a tooth.

July 7, 2015 WY · Coal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between (Not Elsewhere Classified)

Employee pinched hand between a hitch ball and trailer coupler. Broke bone in left hand near joint between index finger and palm.

June 23, 2015 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

A pit millwright and a dragline oiler were replacing a spreader bar pin to the upper chain when the weld on the pin's lifting-eye broke. The lifting-eye hit the dragline oiler in the mouth breaking a tooth and fracturing his jaw.

May 2, 2015 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

A mechanic's right middle finger was pinched/smashed when the upper park brake assembly slipped while being removed from the left rear wheel motor on a haul truck. The result was a finger tip fracture and laceration requiring stitches.

January 13, 2015 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

Employee was securing a down line to a wooden stake when a splinter entered the employee's right hand between the thumb and first finger as the employee was sliding his gloved hand along the wooden stake. Surgery was required to remove the wooden splinter and sutures were applied.

December 31, 2014 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

The millwright was adjusting a web sling on the rod of the hydraulic hammer on the IT (Integrated Tool handler) when the rod was tilted downward, pinching/lacerating the millwright's left index finger requiring stitches.

December 30, 2014 WY · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

The left index finger was lacerated when picking up a piece of broken dozer blade, resulting in 9 stitches.

December 25, 2014 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

A millwright was replacing dump ropes and links on the arch of bucket. The new dump rope and link were installed and pinned on the left side. While attempting to install the keeper bolt, the rope and socket assembly slipped, pinching/amputating the end of the left index finger between the link and socket assembly.

October 18, 2014 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

Employee was performing a latch bar adjustment on the 28 shovel. While installing a shim, his right thumb was jolted in the latch bar assembly resulting in a fracture.

September 18, 2014 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Struck by... (Not Elsewhere Classified)

The mechanic was struck under the chin by a 1" nut when attempting to pull the right tie rod pin from a haul truck. The result was a chipped tooth and two small lacerations that required stitches.

July 25, 2014 WY · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Thunder Basin Coal Company LLC · Caught in, under or between a moving and a stationary object

An equipment operator's left middle finger was pinched/smashed while positioning the latch bar on a shovel dipper to change the shim pack. When the latch-lever was lowered onto the prop device, the prop shifted and pinched the technician's finger. The result was a laceration that required stitches.

Showing 50 of 165