Hi All. Learn something new everyday. Not really sure why I took this route while looking for some data for Petra in regards to a tsunami that came to her in a dream sometime ago (a couple of years ago) and that it so vivid to her that I have been looking for a source that could cause a tsunami to occur where she said her dream indicated.

Of course for the most part I just passed it off as a dream, but still I always kept it in the back of my mind that she could be correct for a future tsunami in the Bay Area.

I have never heard of a tsunami being generated by the 1906 San Francisco quake. That is until now. Take Care…Don in creepy town

“An Unusual Tsunami
Shortly after the Great San Francisco earthquake of April 18, 1906, a sea level disturbance (tsunami) was recorded at the Presidio tide gauge station in San Francisco (the station is now located nearby at Ft. Point). This disturbance puzzled Lawson (1908), author of the comprehensive report of the earthquake, and Henry Reid, proponent of the elastic rebound theory of earthquakes, primarily because it appeared as a small and solitary negative amplitude wave. Here is what the record looked like with the tidal component removed (the red arrow indicates the approximate time of the earthquake):

This tsunami record is unusual because the initial lowering of sea level is not followed by a subsequent positive amplitude wave. The lowering of sea level over about 16 minutes was followed by a series of oscillations with an approximate period of 40-45 minutes. Lawson (1908) originally ascribed these later oscillations to reverberation of the tsunami within San Francisco Bay. As shown in the animations below, however, it appears that these oscillations are caused by complex wave effects outside the Golden Gate and not within the bay. The central question remains--what type of mechanism (earthquake rupture, landslide, other) generated the tsunami recorded at the Presidio tide gauge station.”

• An Unusual Tsunami