"There were 78 miners in the affected area. We transported 76 miners out of the area," Leszek Pietraszek, head of the PGG mining group which operates the Rydultowy mine, told reporters.
"Two miners are still being sought by rescue teams," Pietraszek said.
The mine operator had initially said there were 68 miners underground.
Pietraszek said 17 miners were hospitalised, including one in a serious condition with head and chest injuries.
According to experts, the tremor was the biggest recorded since the Second World War with an estimated magnitude of 3.1-3.4 on the Richter scale.
The tremor occurred at a depth of 1,200 meters (3,900 feet).
Last year, 15 miners died in mining accidents in Poland, compared to 36 the year before.
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