I have received recently a handful of yields of underground tests, 
numbers which were not included in DOE's NVO-209 Rev. 14.
... 
They are potentially useful in calibrating seismic detection equipment.

   Shot/Series           Date      Yield

Bit-B/BOWLINE           10/31/68   <0.1 lb.

Kyack A/MANDREL         9/20/69    2.6 KT 

Seersucker/WHETSTONE    2/19/65    73 tons

Sepia/FLINTLOCK         11/12/65   4.5 KT

Serena/GRENADIER        7/25/85    89.7 KT

Serpa/GUARDIAN          12/17/80   78.3 KT

Sevilla/CROSSTIE        6/25/68    57 tons

Seyval/PHALANX          11/12/82   0.5 KT

Shallows/ANVIL          2/26/76    4.3 KT

Shaper/MANDREL          3/23/70    89.5 KT

Shave/BOWLINE           1/22/69    5.2 KT

Sheepshead/QUICKSILVER  9/26/79    145 KT

Shrew/NOUGAT            9/10/61    18 tons

Shuffle/CROSSTIE        4/18/68    46 KT

Sidecar/LATCHKEY        12/13/66   2.8 KT

Sienna/FLINTLOCK        1/18/66    4.5 KT

Silene/TOGGLE           6/28/73    63 tons

Simms/LATCHKEY          11/5/66    2.1 KT

Sled/BOWLINE            8/29/68    175 KT

Tun A/MANDREL           12/10/69   2.8 KT

These are from HQDNA-A-119M, Defense Nuclear Agency, 
Test Information Index, Issue 24, 1 November 1992.

Chuck Hansen
Editor, "The Swords of Armageddon"