The Gofar transform fault, located approximately 1,000 miles west of Ecuador, has puzzled scientists for decades due to its unusual pattern of recurring magnitude 6 earthquakes every five to six years. A new study published in *Science* reveals that hidden 'barrier zones' within the fault act as natural brakes, preventing these earthquakes from escalating in size. Researchers from various institutions, including the Woods Hole Oceanographic Institution and the U.S. Geological Survey, utilized ocean bottom seismometers to gather data on seismic activity. Their findings indicate that the fault's structure is not merely passive; instead, it contains highly fractured regions that allow seawater to seep in, creating conditions that temporarily lock parts of the fault during seismic events. This natural braking mechanism could explain why many underwater earthquakes do not exceed certain limits. While the Gofar fault itself poses little danger to populated areas, the implications of this discovery could enhance earthquake forecasting and hazard assessments for similar transform faults globally.