Not exactly. IIRC, some of the test holes at Yucca Flats were almost a mile deep. Except for an accidental release or two of radioactive dust and gases, the radiation is contained underground.
At Fukushima, if the one fuel storage pool goes, workers will have to evacuate the entire Daiichi complex and the surrounding area. Without workers on site working the problem, many of the other five reactors and storage pools will begin to overheat and add significantly to the amount of radioactive materials escaping into the environment. This could go on for many, many years and easily exceed the level of contamination released at Chernobyl.
Has Chernobyl killed you?