san francisco earthquake in 1989 lasted 8 -- 15 seconds.
san francisco earthquake in 1989 lasted 8 -- 15 seconds.
san francisco earthquake 1989 how long did it last?
8 -- 15 seconds
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bullet::::- before and after the great earthquake and fire: early films of san francisco, 1897–1916 – american memory at the library of congress









































bullet::::- a geologic tour of the san francisco earthquake, 100 years later – american geological institute









































bullet::::- the great 1906 earthquake and fire – virtual museum of the city of san francisco website









































bullet::::- the great 1906 earthquake and fire – bancroft library









































bullet::::- mark twain and the san francisco earthquake – shapell manuscript foundation









































bullet::::- several videos of the aftermath – internet archive









































bullet::::- "san francisco earthquake and fire, april 18, 1906"
1906 san francisco earthquake