Magnitudes of Soviet tests

To augment my article “Soviet Test Yields” (Eos, November 28, p. 1524) I would like to make available additional mb (Lg) magnitudes from NORSAR, the Norwegian Seismic Array, for four of the events listed in Table 1 (with permission from Frode Ringdal and Roger A. Hansen, from their paper “NORSAR Yield Estimation Studies” presented to the DARPA/AFTAC Seismic Research Symposium held November 28–29 at Patrick Air Force Base, Florida).