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With a POD after 1700 have the area within 50 miles of the OTL San Franscisco Peninsula *NOT* be one of ten largest Metropolitan areas on the Pacific Coast of North America between the Aleutian Islands and the southern tip of Baja California by the year 2000.
Note, the butterflies will *not* change the severity or location of the Earthquakes in that area. There will still be one at the same place/time in 1906 and 1989 for example.