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

80 total records

Showing 50 of 80
February 7, 2026 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Mariana Copper One · Struck by flying object

While removing old teeth off a bucket from a loader the technician was striking the old tooth with a hammer and a chunk of the tooth broke off and struck the bicep of the right arm.

April 7, 2025 UT · Metal/Non-Metal leaching operator HANDLING OF MATERIALS
Mariana Copper One · Absorption of radiations, caustics, toxic and noxious substances

Employee was leveling and digging trench on the leach pad and the tops of the hands turned red and were dry and appeared to be a sunburn. After being seen EE had a reaction to the process solutions on EE's hands.

December 12, 2024 UT · Metal/Non-Metal leaching operator HANDTOOLS (NONPOWERED)
Mariana Copper One · Struck against stationary object

Employee was cutting pad liner with a knife in their right hand when the knife slipped in EE's right hand and EE's right thumb was cut. Result of sharp pad liner cutting EE's thumb while cutting it.

October 26, 2024 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Mariana Copper One · Struck by flying object

Employee was standing next to the dozer, when another employee was using a hammer to align the track. When they smacked the track a piece of the dozer track came off and hit the right forearm of the employee, resulting in a small piece of metal stuck in the employee's arm

October 6, 2024 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech STEPPING OR KNEELING ON OBJECT
Mariana Copper One · Struck against stationary object

Employee was climbing off the ladder of the drill onto the ground. When EE stepped to the ground, maintaining 3 points of contact, EE stepped on a rock. This caused EE to slip and roll an ankle. EE has missed 3 days of work, and is scheduled to return to EE's normal shift on 10/17/2024. I will update the return and missed time when that day comes.

September 26, 2024 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Mariana Copper One · Caught in, under or between a moving and a stationary object

While breaking bead from a loader tire, with the porta power ram, the ram slipped and smashed the left thumb between the ram and the frame of the loader. This caused a finger laceration, fracture of distal phalanx of finger and open nailbed injury.

August 18, 2024 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech FALLING/SLIDING/ROLLING MATERIALS
Mariana Copper One · Struck by falling object

Employee was walking past loader when another employee jumped off ladder and landed on their shoulders, and head, knocking them to the ground.

June 21, 2024 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Mariana Copper One · Fall onto or against objects

Employee was descending non-slip traction steps into a containment area, they tripped, fell forward while catching themself, they broke their left pinky finger.

September 19, 2023 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Mariana Copper One · Caught in, under or between (Not Elsewhere Classified)

Employee was descending a 6' step ladder when EE's weight shifted to one side causing the ladder to twist, EE fell and sprained EE's ankle when EE's foot got caught between the first and second rung.

September 11, 2023 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Mariana Copper One · Struck by... (Not Elsewhere Classified)

Employee was using a 1" drive ratchet to remove a bolt. As EE was pulling it towards self, EE's hand slipped off the ratchet and EE punched self in the left side of their mouth. This caused an upper tooth to come loose.

August 8, 2023 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Mariana Copper One · Over-exertion (Not Elsewhere Classified)

Employee was descending a ladder off a 100-ton haul truck. EE's right foot slipped off the second rung and as EE caught self, EE felt a strain to EE's lower back.

January 20, 2023 UT · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management MACHINERY
Mariana Copper One · Struck by flying object

Employee was working with 4 other employees to start a water well. When the well was started the employee was looking at a flow meter when it failed and popped off the pipe it was mounted on. The flow meter hit employee on the right side of their face causing lacerations on forehead and around right eye. Employee was sutured to close the wound and has an orbital fracture.

October 28, 2022 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Mariana Copper One · Struck by falling object

Employee was bent over to grab a sample of fines next to a blast hole drill when a piece of metal fell from the mast. The piece metal struck employee in the top backside of EE's hard hat and then off EE's shoulder. EE was taken to hospital and diagnosed with a concussion.

September 25, 2022 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Mariana Copper One · Over-exertion in lifting objects

Employee was setting one end of a four inch drill pipe down when they felt a pain to their lower back.

January 31, 2022 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech IGNITION OR EXPLOSION OF GAS OR DUST
Mariana Copper One · Contact with hot objects or substances

Employee had reset an oil heater and was checking the pressure when it ignited and the flame flashed out the inspection port. This flash caused first degree burns to employee's cheeks and nose. Employee was given restricted duty for three days.

November 18, 2021 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Mariana Copper One · Caught in, under or between a moving and a stationary object

Employee was removing a drive shaft on a lube truck when employee's fingers got pinched between the drive shaft and the u-joint

April 18, 2021 UT · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Mariana Copper One · Struck by... (Not Elsewhere Classified)

Employee was rinsing a flask in a sink. The flask slipped out of EE's hand and when EE went to catch it, it broke causing a small laceration to the inside of EE's ring finger. Employee received 3 sutures.

May 17, 2018 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mariana Copper One · Caught in, under or between a moving and a stationary object

Operator was changing bit on the drilling rig, when the bushing slid down the hammer & pinched skin on right little finger between the bit and the bushing. DR cleaned wound and applied superglue. The regulation is vague on this being a reportable due no stitches being used, this delayed the reporting of injury I received verification from MSHA on the nature of this treatment.

April 11, 2018 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Mariana Copper One · Caught in, under or between a moving and a stationary object

EE was putting a 12 inch pipe in the 412 fusion machine and ee skin on the top of ee left ring finger was pinched between the pipe and a pin on the machine. A small laceration was the result and it required 3 stitches.

July 6, 2017 UT · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver EXPLODING VESSELS UNDER PRESSURE
Mariana Copper One · Absorption of radiations, caustics, toxic and noxious substances

Unloading acid trailer and hose started to swell. Shut down operation and hose blew.

March 19, 2016 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mariana Copper One · Caught in, under or between (Not Elsewhere Classified)

EE was trying to remove a stuck cathode from the striping machine. When the cathode un-lodged from the stripping machine it struck EE's right ring finger smashing it against the frame work of the machine. The machine was locked out at the time of the incident.

December 1, 2015 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mariana Copper One · Over-exertion in lifting objects

Lifting sheet of copper out of the cell line. The edge of the sheet caught employees glove and jerked his left arm forward and down.

September 19, 2015 UT · Metal/Non-Metal leaching operator SLIP OR FALL OF PERSON
Mariana Copper One · Fall to the walkway or working surface

Employee was walking up the ILS pond and slipped on sand and fell and landed on right hand with his elbow locked. He felt pain in right hand and in right shoulder. Employee is on rotation and worked after incident, but then after his off time, reported that he wanted to see doctor. No lost time, has been given restricted duty temporarily.

September 8, 2015 UT · Metal/Non-Metal electrician, lineman HANDTOOLS (NONPOWERED)
Mariana Copper One · Struck by... (Not Elsewhere Classified)

While stripping a shred of copper off of a cathode with a pry bar, the bar slipped out off the copper sheet and hit the employee in the mouth. The employee received a laceration on the upper left side of his lip/mouth.

July 24, 2015 UT · Metal/Non-Metal leaching operator SLIP OR FALL OF PERSON
Mariana Copper One · Over-exertion (Not Elsewhere Classified)

While employee was working on a 2" acid line by the ILS Pond, it started to rain. The pond liner was wet and when the employee stepped on it, his foot slipped and he sprained his ankle.

June 18, 2015 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Mariana Copper One · Fall to the walkway or working surface

Employee was pulling on a copper cathode when it slipped. He fell backwards and went to catch himself by putting his hand down. He strained his wrist and was put on restricted duty.

April 18, 2015 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mariana Copper One · Over-exertion in lifting objects

Employee was using a gripper to lift a copper cathode, as he lifted the cathode up he twisted to set it down and strained his back.

April 6, 2015 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Mariana Copper One · Struck by... (Not Elsewhere Classified)

Employee was welding and cutting on a retainer pin in windy conditions. He felt something get into his eye around his safety glasses. He was seen by an optometrist where a small metal flake was removed. He was given a prescription for an antibiotic drop.

April 3, 2015 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Mariana Copper One · Fall to the walkway or working surface

Employee was checking pond levels when he slipped and fell. He tried to catch himself and sprained his wrist. He was put on restricted duty for 5 days.

March 30, 2015 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Mariana Copper One · Struck by flying object

Employee is not sure how but a piece of metal got in his eye while driving to the shop. He had been grinding earlier and perhaps had something on his face. He was seen by an optometrist and a piece of metal was removed and a rust ring removed. He was taken off work for 2 days.

December 31, 2014 UT · Metal/Non-Metal weighman, scale person SLIP OR FALL OF PERSON
Mariana Copper One · Fall onto or against objects

Employee was watching some cathodes being lowered into the EW cells about 30 feet away. An arc flash occurred and he fell back against a pipe. He was seen by a doctor on 1/14/15 and taken off work for a muscle sprain in his upper back.

November 19, 2014 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Mariana Copper One · Fall to the walkway or working surface

Employee slipped on some liner material and fell on his left side hurting his left shoulder. He was put on restricted duty until an MRI can be completed to diagnosis any problem.

January 15, 2014 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mariana Copper One · Caught in, under or between a moving and a stationary object

Employee was helping move a stainless steel cathode to a holding rack. As he put his end in the rack he set it down on his finger causing a small laceration. The employee received 4 sutures to close the laceration.

December 31, 2013 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mariana Copper One · Struck against stationary object

Employee was hooking up a 2" hose to a pump. The clamp on the hose had a sharp edge and as he grabbed the hose to attach it to the pump, he cut his middle finger. He received 8 sutures to close.

April 1, 2013 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Mariana Copper One · Fall onto or against objects

While washing the windows of a 773 cat truck the decking employee was standing on broke. He fell and hit the radiator cap bruising his ribs. He was put on restricted duty.

February 16, 2013 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Mariana Copper One · Fall from machine

Employee was getting off a track-hoe when her foot closest to the ground slipped off the step. She fell to the ground and while trying to catch her self she fractured her wrist.

December 13, 2012 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Mariana Copper One · Over-exertion (Not Elsewhere Classified)

Employee was checking a compressor room when he tripped on a piece of grating at the same time his pant leg caught twisting his knee and ankle. He was put on restricted duty.

August 18, 2012 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Mariana Copper One · Over-exertion (Not Elsewhere Classified)

Employee was climbing the ladder into a 740 Cat haul truck when he felt a pop in his back. He was seen by a doctor and released to light duty.

July 25, 2012 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mariana Copper One · Over-exertion (Not Elsewhere Classified)

Employee was reaching up to release a locking mechanism when he felt a strain to his shoulder. He was seen on a monthly basis until it was determined by the doctor in January to repair his shoulder. He was put on restricted duty after his surgery.

July 16, 2012 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Mariana Copper One · Fall onto or against objects

Employee was checking a battery box on a dozer when he slipped and fell against the draft arm and track frame on his left side. He was seen by a doctor and given x-rays with negative results. He had a cat-scan on 8/27/12 and they discovered he had cracked two ribs.

April 13, 2012 UT · Metal/Non-Metal drill helper HANDTOOLS (NONPOWERED)
Mariana Copper One · Struck by... (Not Elsewhere Classified)

Employee 1 was assisting Employee 2 with the removal of core from a core sample tube. Employee 1 was holding the tube in an upright position, while Employee 2 was tapping on the tube with a dead-blow hammer (bowling pin). Employee 2 struck Employee 1's thumb in the process, resulting in a laceration to Employee 1's right thumb, requiring seven stitches.

April 10, 2012 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Mariana Copper One · Fall to the walkway or working surface

Employee was installing drip lines and was walking on the leach pad. He stepped over a rock on to some softer material and twisted his right leg. He went to the doctor on 4/23/2012 and was put on restricted duty.

March 6, 2012 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Mariana Copper One · Fall from machine

Employee was throwing trash into a trash bin from the back of a pick-up truck. He grabbed a large piece of card board and a gust of wind came up that knocked him off balance. He fell to the ground on his right shoulder, dislocating his shoulder.

February 2, 2012 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Mariana Copper One · Fall to the walkway or working surface

Employee was walking to the ready line when she slipped on some snow and fell onto her back and right side. She sought medical attention on 02/10/2012 and was put on restricted duty.

December 11, 2011 UT · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
Mariana Copper One · Caught in, under or between a moving and a stationary object

Employee was cleaning the restroom when she slammed her right hand in a door on 12/8/2011. She was seen for soft tissue injury that day. She was seen 3 months later by a physician for that same hand and it was determined that the injury aggravated issues associated with Dupuytren's contracture. She was placed on restricted duty with no use of that hand.

August 16, 2011 UT · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
Mariana Copper One · Absorption of radiations, caustics, toxic and noxious substances

Employee was running a forklift when it over heated. He opened the engine compartment to check it and the radiator cap came off spraying his arm with hot coolant. He was placed on restricted duty.

April 4, 2011 UT · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management SLIP OR FALL OF PERSON
Mariana Copper One · Fall to the walkway or working surface

Employee was standing on the tracks of a track-hoe and when he went to walk towards the cab the heel of his boot caught and he fell on his right side. He was seen by a doctor on 4/8/2011 and it was determined he had a cracked elbow.

August 21, 2010 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Mariana Copper One · Struck by... (Not Elsewhere Classified)

Employee was using a pry bar to peel away a 3' X 3' thin sheet of copper from a cathode. The copper sheet swung towards him and cut his right forearm. He recieved sutures and put on light duty.

July 27, 2010 UT · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
Mariana Copper One · Absorption of radiations, caustics, toxic and noxious substances

Employee was helping move a 2" plastic pipe when the pipe broke at a weld and sprayed the employee with a sulfric acid solution.

May 20, 2010 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Mariana Copper One · Over-exertion (Not Elsewhere Classified)

Employee was moving a nitrogen bottle out of a rack when he felt a pull in his groin area.

Showing 50 of 80