Roger,

KB has been studying patterns preceding M6.5+ earthquakes for about 25 years, and this is only the latest of his methods.

However, as we often discuss here, deciphering patterns preceding earthquakes is controversial and difficult to assess. The real test of any method, understood, misunderstood, or a shot in the dark, is its performance on independent events, and events that haven't happened yet are the most decisive tests.

John