Earthquakes Canada has posted the following reports:
Automatic detection of seismic event: magnitude 4.2 - 17 May 9:53 EDT - BRAESIDE, ON region
Automatic detection of seismic event: magnitude 4.8 - 17 May 9:43 EDT - BRAESIDE, ON region
The epicentre west of Ottawa near Arnprior, ON was felt by locals in the city, Sundridge, Toronto and Detroit, Michigan areas.