41.   The craters form when the ground caves into the cavity caused by the underground blast.

42.   The French reply that all the test facilities are at Mururoa and it is not worth building a new test range for eight final underground blasts.

43.   The move was the latest effort in what appears to be a crackdown on anti-nuclear and pro-independence activists as France prepares for its second underground nuclear blast.

44.   The move was the latest effort in what appears to be a crack down on anti-nuclear and pro-independence activists as France prepares for its second underground nuclear blast.

45.   The new treaty bans all test explosions, including underground blasts.

46.   The underground blast in Kiselyovsk, also near Kemerovo, killed one and injured two people.

47.   The United States had been expected to favor a test ban loophole to allow miniature nuclear blasts underground with explosive yields no more than four pounds of TNT.

48.   The underground blast Friday on Mururoa Atoll in French Polynesia was the third in a series that France says it needs to keep its nuclear arsenal in shape.

49.   The underground blasts are only visible from around the lagoon at Mururoa, which heaves and foams like a spa bath as the shock wave lashes the water.

50.   The union announced the ban after France detonated an underground nuclear blast in the South Pacific Monday despite international opposition.