STRONG-MOTION ACCELEROGRAPH RECORDS FROM THE 1993 NAPIERVILLE EARTHQUAKE

An earthquake of magnitude M(L) = 4.3 occurred near Napierville, Quebe c, on November 16, 1993. An accelerograph at the liquefaction, storage , and regasification plant of Gaz Metropolitain in Montreal, about 55 km from the epicentre, recorded the ground motion. Although the maximu m accelerations and velocities from this event are small, the accelera tion time histories do confirm the high energy content in the very she a period range. The recorded ground motion and corresponding absolute acceleration response spectra are presented and various attenuation re lationships, proposed for eastern North America, are utilized to compa re the measured and predicted ground motion parameters.