Abstract: A method for providing earthquake reinforcement for existing wood frame buildings by providing two truss members, the first for securing the building to the foundation and the second to prevent the building cripple walls from collapsing during an earthquake.The first truss member comprises a lower brace member supported between two L-shaped beams, a bolt through the brace member and through one L-shaped beam joining the first truss member to the concrete foundation, the second truss member comprising a brace member having a height determined by the height of the cripple wall and supported between upper and lower L-shaped beams, the lower L-shaped beam being bolted to the adjacent L-shaped beam of the first truss member.The lower beam member of the second truss member is secured to a wood beam which in turn is fixed to the cripple wall. The upper beam member of the second truss member is secured to a wood beam fixed to the cripple wall.