Vol­ca­noes are found main­ly where tec­ton­ic plates con­verge or diverge. The Mid-Atlantic Ridge is a point of diverg­ing tec­ton­ic plates and con­tains numer­ous vol­ca­noes. The Pacif­ic Ring of Fire is a region of con­ver­gent tec­ton­ic plates and also has many vol­ca­noes. Vol­ca­noes can also form in regions where plate thin­ning or stretch­ing occurs on the crust, such as the East African Fis­sure and Grande Reef in North Amer­i­ca. The Unit­ed States has more vol­ca­noes than any oth­er coun­try on Earth, fol­lowed by Rus­sia and Indone­sia.

most volcanoes

Volcanoes in the USA

The Unit­ed States has the largest num­ber of vol­ca­noes at 173, and most of them are in Alas­ka, where erup­tions occur almost every year. Oth­er vol­ca­noes are found in Hawaii, and Kilauea is the world’s most active vol­cano, hav­ing erupt­ed con­tin­u­ous­ly since 1983. There are about 161 active vol­ca­noes in the USA. Most of them are on the west­ern side of the coun­try. Eigh­teen vol­ca­noes are cat­e­go­rized as very high threat due to inter­nal activ­i­ty and the prox­im­i­ty of a large pop­u­la­tion. Five of the 18 vol­ca­noes are in Alas­ka. Vol­canic Mount Kilauea in Hawaii is con­sid­ered the most dan­ger­ous vol­cano in the entire coun­try. In gen­er­al, it is in the Unit­ed States that most of the most amaz­ing vol­ca­noes in the world are locat­ed.

volcanoes in the usa

Volcanoes in Russia

Rus­sia is home to 166 vol­ca­noes. The Kam­chat­ka Penin­su­la has the largest con­cen­tra­tion of vol­ca­noes lying in the east­ern part of Rus­sia. There are 29 active vol­ca­noes on the Kam­chat­ka Penin­su­la. Klyuchevskaya Sop­ka is the high­est vol­canic moun­tain, which is locat­ed at an alti­tude of 4756 meters above sea lev­el, and is the largest active vol­cano in the north­ern hemi­sphere. Bol­shaya Udi­na is one of the vol­ca­noes in Rus­sia that was orig­i­nal­ly con­sid­ered extinct, but seis­mic activ­i­ty was record­ed in 2017. No one knows when the last time the moun­tain erupt­ed.

See also
Della Magdalena - Devil's Bridge in Italy

Volcanoes in Indonesia

There are about 139 vol­ca­noes in Indone­sia. Vol­ca­noes in Indone­sia are part of the Pacif­ic Ring of Fire, and most of its erup­tions in the past have result­ed in dam­age to arable land and loss of life. Mount Mer­api and Kelut are the most active vol­ca­noes in Indone­sia on the island of Java. Most of the coun­try’s vol­ca­noes are on the 1,800 mile long chain com­mon­ly known as the Sun­da Arc. The arc is the point where sub­duc­tion of the Indi­an Ocean plate occurs. The largest erup­tions on the plan­et occurred in Indone­sia. The erup­tion of Mount Tamb­o­ra in 1815 is one of the largest erup­tions in the world in recent his­to­ry. The erup­tion had a huge impact on the cli­mate in Europe in 1816. The year was called the year with­out sum­mer.

volcanoes in indonesia

Volcanoes in Iceland

Ice­land is home to 130 vol­ca­noes and most of its vol­ca­noes are locat­ed with­in the Mid-Atlantic Ridge, which is a diverg­ing tec­ton­ic plate bound­ary. Green­land has 30 active vol­ca­noes, and since 874 AD. 13 vol­ca­noes erupt­ed. The worst erup­tion occurred between 1783 and 1784, which killed about a quar­ter of Ice­land’s inhab­i­tants. In 2010, Eyjaf­jal­la­jokull erupt­ed and a vol­canic ash plume in the air blocked air trav­el in north­ern Europe for sev­er­al weeks.