From November 1988 until the end of January 1989 the Saguenay region (Province of Qudbec, Canada), experienced sixty-seven earthquakes (M > 0). A foreshock, magnitude 4.8 mbLg, occurred on 23 November at 4:12 am (all times in this paper are EST). Two days later at 6:46 pm on 25 November, an unexpected 6.5 mbLg (5.9 mb) shock was recorded by a network of portable seismometers, distributed near the epicenter by the Geological Survey of Canada after the foreshock. (Both this and the foreshock occurred during the hours of darkness.) The main shock caused strong...

First Page Preview

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