Event:
Marine clay under houses liquefies, 31 die (St-Jean-Vianney Quebec)
More Notable Events on April 4:
1994 Netscape Communications founded as Mosaic Communications
1989 Kareem Abdul-Jabbar's last NBA game in Seattle
1972 1st electric power plant fueled by garbage begins operating
1949 Israel and Jordan sign armistice agreement
1850 City of Los Angeles incorporated
