In this scene, Vision collapses a base in Camp Lehigh onto Wanda. As she remains under there for a lengthy period of time, I assume that she was likely crushed under there. If she wasn't, she likely would've escaped with her telekinesis immediately instead of just waiting. In the image, Bruce is 49 px tall. The length of the base is 467 px, the height is 101 px, the length of the sloped side is 202 px, base1 is 523 px, and base2 is 208 px. Mark Ruffalo is 5'8" or 1.73 m.
1.73/49=0.03530612244 m/px
467*0.03530612244=16.4879591795 m
101*0.03530612244=3.56591836644 m
202*0.03530612244=7.13183673288 m
523*0.03530612244=18.4651020361 m
208*0.03530612244=7.34367346752 m
Using the volume of a trapezoidal prism, we get a total volume of 758.709819 m^3. Subtracting the volume of the base of the prism as there is none, we get a volume of 454.257970383 m^3. Concrete has a density of 2400 kg/m^3 and assuming 80% hollowness because in the scene we see a decently large portion of concrete before it reaches the inside of the base, we get a mass of 218043.825784 kg.
In this image, Wanda is 196 px tall and the height of the room is about 720 px tall. Elizabeth Olsen is 5'6 or about 1.71 m tall.
1.71/196=0.00872448979 m/px
720*0.00872448979=6.2816326488 m
Calculating its potential energy using the speed of gravity and the values above, we get 13436474.618307 J or 0.003211394507243546872 tons of tnt. The surface area of just the roof would be 356.261054213 m^2. The average weight of a female that's 1.71 m is about 62 kg. Using a body surface area calculator, her body would have a surface area of about 1.726 m^2. Dividing the surface area of the roof by that of her body and then that by the tons of tnt, we get:
356.261054213/1.726=206.408490274
0.003211394507243546872/206.408490274=0.00001555844 tons of tnt or 65096.51296 J (Wall level)