�������t¶��

Berkeley's Seismo Blog does a good job describing some of the faults involved.

As Saturn spins, its internal vibrations inscribe telltale signatures in its rings; studying those markings is now termed “kronoseismology,” from kronos, the Greek name for Saturn, and seismo, for quakes and vibrations.

Earthquakes can make the ground hum with vibrations when two giant slabs of the crust suddenly slide past each other — “the same as a clapper hitting a church bell,” the University of California, Berkeley’s Seismo Blog explains.

In PNSN’s “Seismo blog” Thursday afternoon, Renate Hartog wrote that the Seattle fault runs right through the area of the current swarm.