The Navy confirmed that a rumble felt countywide June 29 was the result of military exercises about 35 miles off the San Diego coast. The incident was triggered by fighter jets doing maneuvers as part...

Was it an earthquake or a sonic boom? There are no answers yet to a significant rumble felt about 12:45 p.m. June 29 from Encinitas east to Harmony Grove and south to San Diego. The U.S. Geological...