A magnitude-4.3 earthquake rattled northern Sonoma County Tuesday evening, centered near the Geysers geothermal area. According to the U.S. Geological Survey, the quake struck roughly five miles southeast of Cloverdale and was quickly followed by a 2.5 aftershock. Local officials report no immediate signs of injuries or structural damage following the temblor. Seismic activity is a frequent occurrence in the Geysers region due to ongoing geothermal operations and fault lines. Residents across the area reported feeling moderate shaking, but operations across the county remain normal.