Some shaking and rattling for folks near Cobb. The U.S. Geological Survey says there were actually two earthquakes, one around 8;45 Wednesday and another about 2:42 this morning. The second quake was the strongest, with a magnitude of about 4.2. It was centered in an area north of Healdsburg and Windsor near the Sonoma-Lake County line. No reports of any damage, but State Senator Mike McGuire’s office calls it–a pretty good shaker. Social media posts from as far away as San Francisco reported feeling the ground move.