Region
United States
29
Africa
2
Europe
2
Australia
1
Cascadia Subduction Zone
1
Chicago
1
Chicago (Ill.)
1
China
1
Earth (Planet)
1
Ecuador
1
Europe, Central
1
Europe, Eastern
1
Europe, Northern
1
Galapagos Islands
1
Illinois
1
India
1
Latin America
1
Moon
1
New York
1
New York (State)
1
North America
1
North Carolina
1
Northwest Coast of North America
1
Northwest, Pacific
1
Rocky Mountains
1
Russia
1
Russia (Federation)
1
Southern States
1
Soviet Union
1
Tasmania
1
Universe
1