Abstract: A method is provided which permits easy, in-the-field installation of an earthquake damage control mechanism. In particular, the mechanism comprises a turnbuckle having threaded yokes disposed at opposite ends of the turnbuckle together with eyebolts disposed within the yoke portions of the threaded yokes as a means for providing a retention device for anchoring relatively heavy computer and/or other equipment in position during seismological events. The electrical equipment is disposed within a frame which preferably includes a plurality of metal plates disposed at the bottom thereof. The frame is also provided with casters which permit the equipment to be rolled conveniently into place and then anchored firmly into position using a small number of pins which extend through the threaded yokes and eyebolts.