The document discusses earthquake data and distributions. It notes that earthquakes are clustered around boundary lines, particularly convergent boundaries like the oceans. Nearly half of large earthquakes above magnitude 7 occur within 100 miles of convergent boundaries, and over three-quarters occur within 200 miles. The document also lists places that may be at risk of future large earthquakes like Saudi Arabia, Idaho, Chile, and California due to their locations near boundaries or past seismic activity.