average Japanese tree height 39.5px = 6.096 meters
bottom length of object 411 px = 63.4292658228 meters
top length of object 122px = 18.8281519 meters
width of object 165.5px = 25.5414684 meters
Conical Frustum Volume Calculator in cms
CC = 149034798732.11 cc
Since it is a huge chunk of earth and seems to frag like rock I will be using 30% rock and 70% soil"
44710439619.6cc rock
104324359112cc soil
violent frag for both
44710439619.6 x 69 j/cc = 3085020300000j
104324359112 x 0.2 j/cc = 20864871822.4j
Final results
E = 742.32437859 tons (Multi-City Block+)
Now for cat girl who lifted this off the ground
Rock is 2.515 grams/cubic centimeter = 112446755643 grams
Soil is 1.33 grams/cubic centimeter = 138751397619 grams
the weight of this would be 251,198,153.262 kilograms (Class M)