ROME—A moderate earthquake rattled Italy’s financial capital of Milan on Saturday morning. There were no immediate reports of damage or injuries. Italy’s Institute for Geophysics and Vulcanology said the quake had a preliminary magnitude between 4.3 and 4.8. It struck at 11:34 a.m. (1034 GMT; 5:34 a.m. EST) in the province of Bergamo. Italy’s fire department tweeted that “at the moment no reports of damage or requests for rescue” had arrived in its operations center.