Alaska

Washington

Wyoming

Hawaii

Oregon

None

A world map showing volcanoes active between 1800 and 2020. Volcanoes are scattered globally, with notable concentrations in the western US, Mexico, Central America, the Andes, the Mediterranean, East Africa, Southeast Asia, and the Pacific Ring of Fire.

Time series map animation showing locations of significant volcanic eruptions from 1800 to 2019. Use timeline controls at bottom of the map to display data by time period.

Volcanoes

World

NOAA

Arizona

Utah

District of Columbia

Florida

Nunavut

Virginia

Mississippi

Texas

Louisiana

North Carolina

Alabama

New Mexico

South Carolina

Colorado

Georgia

Maryland

Québec

Tennessee

California

Arkansas

A map shows the ethnic and cultural regions in U S. French-Canadian (orange) in Quebec, Black belt (blue) in the southeastern states. Hispanic borderlands (mustard) in south states. Navajo Reservation (yellow) in Arizona, and Nunavut shaded grey.

Distinctive contemporary cultural regions of North America

Ethnic and Cultural Regions

North America

nature

Yukon

Northwest Territories

Idaho

New Hampshire

Rhode Island

Vermont

Montana

Maine

North Dakota

Kentucky

Nova Scotia

Delaware

Prince Edward Island

Saskatchewan

West Virginia

Nebraska

Missouri

New Brunswick

Kansas

Wisconsin

British Columbia

Newfoundland and Labrador

New Jersey

Michigan

Alberta

Connecticut

Pennsylvania

Nevada

Massachusetts

New York

Manitoba

Oklahoma

Ontario

South Dakota

Ohio

Indiana

Minnesota

Iowa

Illinois

A map shows areas of insolation (incoming solar radiation) across the world, categorized by watts per square meter.

Average annual levels of solar radiation reaching the Earth's surface

Insolation

The map illustrates global insolation, showing variations in incoming solar radiation from the tropics to the polar regions. In the Northern Hemisphere, high insolation (220 to 280 plus watts per square meter), highlighted as dark green to dark red spans from northwestern Mexico through southern Texas, Florida, and the Caribbean, across the Atlantic to North Africa and Southwest Asia, with peaks in the eastern Sahara and Arabian Peninsula. In the Southern Hemisphere, high insolation areas stretch from East Africa to South Africa and across the Indian Ocean to most of Australia, with other high insolation zones in the Central Pacific and south-central South America. Middle insolation values (120 to 219 watts per square meter), highlighted as light blue to green, are found between 50 degrees north and 50 degrees south latitude, excluding high insolation regions. Low insolation areas (80 to 119 watts per square meter), highlighted as blue to light blue, are located north of the 50-degree lines to the poles in North America, the North Atlantic, and Eurasia, and around the Southern Ocean in Antarctica. The lowest insolation values (less than 80 watts per square meter), highlighted as dark blue, are in the ocean east of northern Greenland.

Display by:	Volcanoes	Ethnic and Cultural Regions							Insolation
	Volcanoes	Acadiana	Black Belt	Cuban South Florida	French-Canadian Quebec	Hispanic borderlands	Navajo Reservation	Nunavut	240–259	220–239	200–219	180–199	160–179	140–159	120–139	100–119	80–99	Less than 80
Alaska	1															28.4%	69.2%	2.23%
Arizona						48.4%	14.0%		44.2%	33.7%	22.1%
Utah							1.23%				70.0%	8.89%	2.63%
Yukon																100%
Northwest Territories															2.63%	82.4%	14.9%
District of Columbia			100%										100%
Florida				3.77%						32.7%	67.3%
Idaho													78.1%	21.9%
New Hampshire														100%
Rhode Island														100%
Vermont														100%
Washington	2												1.22%	98.8%
Wyoming	1											12.4%	87.6%
Nunavut								98.3%							1.36%	33.1%	65.5%
Montana													14.7%	85.3%
Maine														99.8%	0.153%
North Dakota														100%
Kentucky												46.4%	53.6%
Nova Scotia														52.4%	47.6%
Virginia			29.1%									2.49%	97.5%
Delaware													100%
Prince Edward Island															100%
Saskatchewan														42.7%	57.2%
Mississippi			63.6%								82.1%	17.9%
West Virginia													99.2%	0.827%
Nebraska												9.53%	90.5%
Texas						56.1%			5.26%	58.9%	35.9%
Missouri												66.4%	33.6%
Louisiana		20.6%	48.2%							26.8%	73.2%
Hawaii	3									2.67%	97.3%
North Carolina			54.7%									73.0%	27.0%
Oregon	2												96.3%	3.75%
New Brunswick														47.2%	52.8%
Alabama			48.6%								66.2%	33.8%
New Mexico						89.9%	3.98%		15.5%	33.9%	49.1%
Kansas											5.90%	91.6%	2.46%
Wisconsin														100%
British Columbia														21.7%	31.5%	46.8%
Newfoundland and Labrador															29.5%	69.1%	1.36%
New Jersey													51.6%	48.4%
South Carolina			70.7%									100%
Michigan														100%
Alberta														29.7%	53.1%	17.2%
Connecticut														100%
Pennsylvania													19.4%	80.6%
Colorado						17.0%					48.1%	51.6%	0.332%
Nevada										1.58%	63.4%	31.2%	3.86%
Massachusetts												0.220%		99.8%
Georgia			62.2%								48.3%	51.7%
New York														100%
Maryland			16.4%										100%
Québec					99.6%									10.4%	38.5%	41.0%	10.1%
Manitoba														26.0%	66.7%	7.35%
Oklahoma											82.2%	17.8%
Tennessee			2.75%									100%
Ontario														30.4%	56.0%	13.7%
California						49.1%			2.69%	22.7%	49.4%	19.9%	5.25%
Arkansas			20.3%								50.1%	49.9%
South Dakota													50.1%	49.9%
Ohio													51.6%	48.4%
Indiana												0.561%	79.2%	20.2%
Minnesota														99.9%
Iowa													77.7%	22.3%
Illinois												11.8%	73.8%	14.4%

MapMaster 3

Volcanoes