Archive for the ‘Oakland Geology’ Category

Right Lateral, Into the Abyss of Time

December 12, 2009

We moved our family into Oakland in the late 60’s. We shopped in the Lucky Store, usually the one on Lakeshore Avenue, but occasionally we went to the Montclair store on Mountain Boulevard.

The Montclair store had a persistent problem with plumbing and damage to the floor in the meat department, which ran along the southern wall. After noticing this for several months, it occurred to me that the problem could be related to movement on the Hayward Fault, which might pass through the building.

Apparently, that was the case. The Lucky corporation decided to re-locate the store in a new building- the present site- and conducted a series of trenching studies, so they could place the new building completely on one side of the trace of the fault. The economics were such that they could take care of the persistent problem, but would not be too concerned about the long term exposure to seismic problems.

Following this process, I fully expected that the original building would be torn down. No way! It now houses the Rite Aid store. I have shopped there, just as I continue to shop at the Lucky Store. While I am aware of the hazard-shall I park in the basement or on the roof?- it does not impact my daily life. (more…)