Complex sentence: The Elsinore fault zone, not including Whittier, Chino, and Laguna Salada faults, is 180 kilometers (111 miles) long with a slip-rate of 4.0 millimeters/year (0.15 in/yr).
Split into simpler sentences: The Elsinore fault zone, not including Whittier, Chino, and Laguna Salada faults, is 180 kilometers (111 miles) long. Its slip rate is 4.0 millimeters/year (0.15 in/yr).