|The Wasco 4.9 earthquake, as recorded at Modesto Junior College|
California has been shaken by another near-magnitude 5 earthquake, and this one is a bit odd. It hit in the Great Valley, one of the few places in California NOT known for having faults and earthquakes. It occurred near the south valley town of Wasco, and had a magnitude of 4.9, along with a couple of aftershocks as high as magnitude 2.6. The first motion solution suggests right lateral strike-slip motion in the same orientation as the San Andreas fault, which lies to the west in Coast Ranges.
|Not the kind of place one expects to see fault zones...|
The U.S. Geological Survey event page for the earthquake can be seen at http://earthquake.usgs.gov/earthquakes/eventpage/ci37528064#general_region.