Graphic ‘beach ball’ representations calculated for U.S. underground nuclear tests can aid monitoring

Credit: Pixabay/CC0 Public Domain

Researchers at Lawrence Livermore National Laboratory have calculated moment tensors for 130 underground nuclear and 10 chemical test explosions that have taken place at the Nevada National Security test site.

Often represented graphically to resemble a striped “beach ball,” moment tensors “are essentially a mathematical concept that’s used to describe forces that drive earthquakes,” said Andrea Chiang, co-author of…

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