The blasts occurred at the corner of Eighth Avenue and 35th Street at around 10:16 a.m.
At least one firefighter was injured late Thursday when a manhole exploded and caught fire in Bushwick, Brooklyn.
Con Edison said 600 fires have erupted in New York City manholes since Sunday, and one woman was speaking after being hospitalized from an explosion earlier this week.
A bizarre and dangerous incident left two people injured in Midtown Manhattan Monday morning.
A manhole fire caused quite a scare Saturday evening in Midtown East.