We received several reports of a booming, explosion-like noise coming from a parking garage near 16th and L Streets NW just before 11:30 a.m. D.C. Fire/EMS spokesperson Alan Etter tells us that the fire department responded to what turned out to be an electrical failure with some Pepco equipment, possibly a transformer, at that location. No visible fire resulted from the short circuit, but we did hear some smoke was visible in the area immediately after the booming noise. Etter described the incident as “not a big deal.”