abstract

Numerous fresh landslide scars visible in aerial photographs of central Vancouver Island taken in the period 1946 to 1957 are attributed to the earthquake, magnitude 7.2, of June 23, 1946. Distribution of the scars shows a very strong concentration in a zone parallel to the favored fault-plane solution but some 50 km to one side, straddling the favored P nodal auxiliary plane. Topography precludes the development of a corresponding belt of landslides on the opposite side of the favored fault plane. A high proportion of slides face southerly or southwesterly but an explanation for this favored orientation is lacking.

First Page Preview

First page PDF preview
You do not currently have access to this article.