Experts say Rodgers Creek Fault quake would be the most intense in southern Sonoma County, but would extend north to Healdsburg. The Rodgers Creek Fault is a principal strand of the San Andreas Fault system north of San Francisco Bay (fig. This scenario shows the ground shaking from a magnitude 7.2 earthquake involving rupture of both the Hayward and Rodgers Creek faults. The Rodgers Creek Fault passes through Sonoma Mountain and its north end terminates within Santa Rosa. The Hayward-Rodgers Creek fault zone is considered the most likely bay area fault to experience an earthquake with moment magnitude (M) of ≥6.7 within the next 30 years (), yet the location and connectivity of the Hayward and Rodgers Creek faults remain uncertain beneath San Pablo Bay.Where the faults enter the bay, their projections are separated across-strike by ~5 km. The 30-year mean probability of a magnitude (M)>6.7
The Maacama fault is observed to creep at a four alinement arrays along its entire 180 km extent (McFarland et al., 2009).
The Rodgers Creek fault (RCF) is a principal component of the San Andreas fault system north of San Francisco. . Although earthquakes on multiple faults do occur, they are much rarer than earthquakes … By Angela Hart, Patch Staff Apr 14, 2011 1:11 pm PT | … The Rodgers Creek fault (RCF) is a principal component of the San Andreas fault system north of San Francisco. Without amenities of other POAs, yet filled with the wonderful wildlife and natural surroundings found in the nearby Chattahoochee National Forest. The accompanying map and digital data identify recently active strands of the Rodgers Creek Fault in Sonoma County, California, interpreted primarily from the geomorphic expression of recent faulting on aerial photography and hillshade imagery derived from airborne lidar data. Publication (Other) USGS Scientific Investigations Map 2018 Menlo Park, CA USGS This updated map of the Rodgers Creek section of the Rodgers Creek Fault is based primarily on new mapping from interpretation of geomorphic expression of active faulting on high-resolution lidar imagery and, to a lesser extent, on aerial photography and from field mapping. Fault creep north of the San Francisco Bay Area has been observed in a few discrete locations, along the Maacama and Rodgers Creek faults, but the distribution of creep along these faults are not mapped in detail.
Rodgers Creek is a 30 year old POA with the lowest current dues ($120/ yr) for land owner property in the state of Georgia (most lots are 1.3 to 1.7 acres). In this scenario, rupture begins beneath San Pablo Bay and simultaneously proceeds towards the south on the Hayward fault and towards north on the Rodgers Creek fault. map sheet) that accommodates 6–10 millimeters per year (mm/yr) of plate-boundary motion (Schwartz and others, 1992). The Healdsburg Fault continues along the east side of the Cotati Valley north of Santa Rosa, and the Healdsburg Fault is actually a step-over from the Rogers Creek fault.