A series of earthquakes with a magnitude of 4.2 struck different areas in California. The first earthquake occurred 2 miles southwest of San Bernardino at a depth of 15 km near the San Jacinto fault, which is generally locked and had a magnitude 7 quake in the 19th century. The USGS reported another 4.2-magnitude earthquake on Wednesday evening, less than 20 miles south of Cajon Pass in Southern California. Subsequently, northern Sonoma County near the Geysers, an area known for geothermal activity, was also hit by a 4.2 magnitude quake. The Geysers geothermal field in Lake County experienced a total of four quakes since the morning, with the latest being centered just under three miles northeast of Cobb. There have been no reports of damage.
An earthquake with a preliminary magnitude of 4.2 centered just under three miles northeast of Cobb in Lake County rattled The Geysers geothermal field Friday afternoon, one of four quakes since this morning, according to the USGS. https://t.co/ZJIi33lbfe
Magnitude 4.2 earthquake strikes SF Bay Area https://t.co/WoutFKzKZA
#BREAKING: A preliminary 4.2 magnitude earthquake struck in northern Sonoma County near the Geysers, an area known for geothermal activity, according to the USGS. https://t.co/SihknMhgkF https://t.co/6s1UNZwCoG
#BREAKING A preliminary magnitude 4.2 earthquake rattled The Geysers area in Northern California. No reports of damage. @nbcbayarea https://t.co/axQMu1Hlji
A preliminary 4.2-magnitude earthquake rattled Southern California Wednesday evening, the USGS reported. https://t.co/FzbB9grUHr
A magnitude 4.2 earthquake struck California on Wednesday evening, less than 20 miles south of Cajon Pass. https://t.co/QtnlWITDvZ
This quake is M4.2 2 miles SW of San Bernardino. Location is pretty deep (15 km) very close to the San Jacinto fault. That part of the fault is generally locked - it had a M7 in the 19th century. We often see small quakes like this below locked segments. https://t.co/fEtrcCIsBW