1) Major earthquakes are more common near convergent plate boundaries and in certain areas like South America and the Philippines.
2) Approximately 47% of major earthquakes occur within 100 miles of plate boundaries and 71% occur within 200 miles.
3) Areas at risk for future major earthquakes include the Philippines, Pacific Northwest, South America, New Zealand, Japan, Indonesia, Alaska, the Mediterranean, Burma, and the Lesser Antilles due to factors like their proximity to plate boundaries and lack of recent seismic activity.