No. 147, First Sunquake of Solar Cycle 24 Observed by Solar Dynamics Observatory, by A. G. Kosovichev. An X-class flare - and a Sunquake.

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/First_Sunquake_of_Solar_Cycle_24_Observed_by_Solar_Dynamics_Observatory

Older Nuggets are available at
http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets
 (the new series), and at
http://sprg.ssl.berkeley.edu/~tohban/nuggets/ (the original series).

We publish these at roughly two-week intervals and welcome
contributions, which should be at least loosely related to RHESSI
science.