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Wednesday afternoon the floor at the Santa Cruz County jail started bulging and tiles started to pop off, said Deputy April Skalland.

The front lobby of the jail was evacuated and the prisoners were placed on lockdown as the mystery was investigated. According to Deputy Skalland, neither a gas leak nor a water leak caused the floor tiles to start moving.

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At this time it is still unknown what caused the floor to start moving. According to the United States Geological Survey no earthquakes were recorded during this time.