Small earthquake epicenters near the Anza seismic gap define a 20‐km quiescent segment of fault bounded to the northwest and southeast by areas of relatively high seismicity. San Jacinto Fault Zone. Ghosh has done research on the San Jacinto Fault. The San Jacinto fault zone is the most seismically active strand of the San Andreas fault system in southern California, with a succession of moderate sized earthquakes (6 < M < 7) over the period since 1890. The Anza slip gap is a 40 km segment of the San Jacinto fault that separates Citation Li, Y., & Vernon, F. L. (2001). The … The ages of the ruptures are constrained by 111 radiocarbon dates, 97 of which fall in stratigraphic order. We interpret the low-velocity waveguides on these active strands to partly result from recent prehistoric significant earthquakes on them and evaluate the future earthquake in the Anza region. 5876 sanders and l