Fascinating question about quakes and whales, Marco. While only a chapter in my new global warming book (humor) covers quakes, this topic certainly is an intriguing one. Here's just two references I found. There are countless more.

In his paper, Dr. Puharich stated, "Of the many great earthquakes of 1976, ... to the phenomenon of whales beaching themselves to death in mass. ...

http://www.eham.net/articles/9909
NHNE News Brief 27 (9/6/96)
Several hours later there was a beaching of Sperm Whales in Oregon that lasted ... However, within 72 hours of the beachings, four quakes hit in Big Bear, ...