Homer and his son survived this one blast, and i'm gonna calc it.
He blew the roof, so since this is a one-story house, this means it has length worth of 14.6304 meters, and since the roof got blown in one frame, then this gives us the velocity.
Timeframe = 1/24 s.
Velocity = 14.6304 / (1/24) = 351.1296 m/s.
Now, for the weight of the roof, According to this article, an average roof is around 22 feet wide and 48 feet long.
Area of roof = 22 * 48 = 1056 square feet.
The roof of the Simpsons' house looks like a typical asphalt-shingled, wood-framed roof, which is around 15 pounds per square foot.
Weight of a roof per square foot = 15 * 1056 = 15840 pounds = 7184.903 kg.
Now, for the K.E.
K.E. = 0.5 * (7184.903) * (351.1296)^2 = 4.42921e8 Joules = 0.11 Tons of TNT (Small Building Level+)
April's Soda Blast = 0.11 Tons of TNT (Small Building Level+)