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Placas Tectônicas

A litosfera terrestre é dividida em placas tectônicas que flutuam sobre a astenosfera. A maioria dos terremotos ocorre ao longo dos limites das placas.

African

AF Major Plate

Large plate covering Africa and part of the Atlantic Ocean. Diverges from the South American Plate …

61.300.000,0 km²

Antarctic

AN Major Plate

Plate underlying Antarctica and surrounding ocean. Surrounded by mid-ocean ridges.

60.900.000,0 km²

Eurasian

EU Major Plate

Covers Europe and most of Asia. Collides with Indian Plate forming the Himalayas.

67.800.000,0 km²

Indo-Australian

AU Major Plate

Sometimes divided into Indian and Australian plates. Drives into Eurasian plate.

58.900.000,0 km²

North American

NA Major Plate

Covers North America, Greenland, and part of the North Atlantic.

75.900.000,0 km²

Pacific

PA Major Plate

Largest tectonic plate, almost entirely under the Pacific Ocean. The Ring of Fire follows its edges.

103.300.000,0 km²

South American

SA Major Plate

Covers South America and part of South Atlantic. Subduction under Nazca Plate drives Andes earthqua…

43.600.000,0 km²

Arabian

AR Minor Plate

Drives into Eurasian plate causing earthquakes in Iran, Turkey, and the Middle East.

5.000.000,0 km²

Caribbean

CA Minor Plate

Small plate between North and South American plates. Source of Caribbean earthquakes.

3.300.000,0 km²

Cocos

CO Minor Plate

Oceanic plate subducting under Central America and Mexico, causing frequent large earthquakes.

2.900.000,0 km²

Juan de Fuca

JF Minor Plate

Subducting under Pacific Northwest, responsible for Cascadia megathrust earthquake risk.

250.000,0 km²

Nazca

NZ Minor Plate

Oceanic plate subducting under South America, generating the world's most powerful earthquakes.

15.600.000,0 km²

Philippine Sea

PS Minor Plate

Complex plate driving seismicity across Japan, Philippines, and Taiwan.

5.500.000,0 km²

Scotia

SC Minor Plate

Small plate near southern tip of South America.

1.600.000,0 km²

Somali

SO Minor Plate

Rifting from African Plate along East African Rift System.

16.700.000,0 km²