A magnitude 2.5 microquake occurred at 10:55 p.m. Tuesday near the San Diego Maritime Museum on Harbor Drive on San Diego Bay, says the U.S. Geological Survey. The shaker, which was not widely felt, appears to have been produced by the Rose Canyon fault, a strike-slip system that extends onshore, roughly from Mission Valley to La Jolla. The fault hasn't produced a significant quake since the period before European settlers moved into the region, says USGS. But seismologists say it is possible that the Rose Canyon could produce a 7.0 or larger quake if it broke on conjunction with the Newport-Inglewood fault.
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