Ratio of the maximum surface acceleration to the local gravitational acceleration on the Kamoi side (western; panels a–d) and the opposite side (eastern; panels e–h) for different η values. All simulations assume a constant K value of 2000. The panels are arranged such that η decreases from left to right. Each column corresponds to an η value of 5 × 10⁻⁷, 1 × 10⁻⁷, 5 × 10⁻⁸, and 1 × 10⁻⁹.