Layer Estimates:

Layer: Plate borders (ID:0)
Count: 267
Extent:

XMin: -20037507.0671618
YMin: -9876845.89584948
XMax: 20037507.0671618
YMax: 23226283.4739284
Spatial Reference: 102100 (3857)

Layer: Volcanoes (ID:1)
Count: 979
Extent:

XMin: -19996946.4437
YMin: -14623041.004
XMax: 19870332.7564
YMax: 11402087.6148
Spatial Reference: 102100 (3857)