To provide a pedestal for a bookshelf for measures against earthquakes, in which the angle of about 5 degrees is provided between the upper part and lower part of the pedestal of a triangular prism and books are made to slide and return to original positions even when the books are to jump out and fall by raising the front part to place the books in the bookshelf at the time of an earthquake.

For the pedestal, the angle 4 is provided between the upper part 2 and lower part 3 of the pedestal 1 of the triangular prism. Thus, even when the books are to jump out from the bookshelf and fall at the time of an earthquake, since the angle is provided between the upper part and lower part of the pedestal of the triangular prism, the books return to the original positions.