USGS: Based on last 110 years, typically ~17 major earthquakes (7.0-7.9) and one 8+ quake each year. https://earthquake.usgs.gov/learn/topics/increase_in_earthquakes.php
Archiving my Twitter, Facebook and other social network activity
USGS: Based on last 110 years, typically ~17 major earthquakes (7.0-7.9) and one 8+ quake each year. https://earthquake.usgs.gov/learn/topics/increase_in_earthquakes.php