Hōjō Coal Mine Disaster
1914 mine explosion in Japan From Wikipedia, the free encyclopedia
The Mitsubishi Hōjō mine disaster occurred December 15, 1914, in Kyushu, Japan. A gas explosion at the Hōjō (Hojyo) coal mine killed 687. It is the worst mining accident in Japanese history.[2]
 American news coverage of the disaster | |
| Date | December 15, 1914 |
|---|---|
| Location | Mitsubishi Hōjō Coal Mine |
| Coordinates | 33°40′55″N 130°47′16″E |
| Cause | Coal Mine explosion |
| Casualties | |
| 687-1000 [A 1] | |
Mitsubishi formally opened the Hōjō mine in 1908. It was the seventh mine in an elaborate network of mines known as the Mitsubishi Chikuho coalfield.[4] The mine was a shaft mine that pioneered deep shaft mining in Japan and was one of the deeper mines of its day, at parts was 295 feet (90 m) deep. [4]
On December 15, 1914 coal dust and methane gas mixed together in the air until some sort of spark set off a giant explosion. The blast sent the mine shaft cage, used to take miners in and out of the mine, flying out of the mine shaft.
After the explosion, the owners of mine cut up hundreds of oranges and tossed them down the shaft thinking that the citrus would negate the poison gas fumes.[1] As the rescuers went down into the mine they "Each held a summer orange in their mouth and went down breathing only through their noses" under the same belief.[1] After a short while to prevent the fire from spreading underground and destroying valuable coal the mine's entrances were sealed to put out the fire but as a result, also killing anyone who survived the initial explosion underground.[3] As with most Japanese mines the wives worked with their husbands and an estimated 20% of those killed were women.[3]
Deaths by mine sector location.[3]
| Sector | Deaths |
|---|---|
| Left Nogi Ascent | 112 |
| Right Mata Descent area | 250 |
| New Oyama Fourth Descent area | 60 |
| Second New Kuroki Descent | 88 |
| Second New Mata, Right Slope | 70 |
| Ditto, Left No.3 Descent | 50 |
| Third New Mata Descent | 50 |
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