Volcanos questions

With a summit elevation of 3,794 metres, Mount Erebus is the second-highest volcano in Antarctica (after Mount Sidley). Located in the Ross Dependency on Ross Island, it is the southernmost active volcano on Earth.

Nevado Ojos del Salado is a stratovolcano in the Andes on the Argentina–Chile border and the highest active volcano in the world at 6,893 m (22,615 ft).[3] It is also the second highest mountain in the Western Hemisphere and Southern Hemisphere and the highest in Chile.

Mount Teide is a volcano on Tenerife in the Canary Islands, Spain. Its 3,718-metre (12,198 ft) summit is the highest point in Spain and the highest point above sea level in the islands of the Atlantic.

Parícutin is a cinder cone volcano located in the Mexican state of Michoacán, near the city of Uruapan and about 322 kilometers (200 mi) west of Mexico City. The volcano surged suddenly from the cornfield of local farmer Dionisio Pulido in 1943, attracting both popular and scientific attention.

There are approximately 200 volcanoes in Iceland. Most of them are concentrated along the border of tectonic plates stretching from the south-west of the island to the northeast. It is estimated that from the year 1500 from Icelandic volcanoes, the amount of lava equal to about one third of the amount of lava from all other eruptions in this period around the world.

The largest island in a lake on an island is Pulau Samosir in Danau Toba on Sumatra. Samosir in Lake Toba, Indonesia – 630 km2 (240 sq mi), was originally formed as a peninsula; its current island status, however, is only through its deliberate separation from the mainland by a canal.

Pico de Orizaba is a stratovolcano, the highest mountain in Mexico and the third highest in North America. It rises 5,636 metres (18,491 ft) above sea level in the eastern end of the Trans-Mexican Volcanic Belt, on the border between the states of Veracruz and Puebla. The volcano is currently dormant but not extinct, with the last eruption taking place during the 19th century. It is the second most prominent volcanic peak in the world after Africa's Mount Kilimanjaro.

A lahar is a violent type of mudflow composed of a slurry of pyroclastic material, rocky debris and water. Lahars are extremely destructive: they can flow tens of metres per second, they have been known to be up to 140 metres deep, and large flows tend to destroy any structures in their path. They have even been known to decimate entire settlements.

Green Lake with a surface area of 0.8 hectares and a maximum depth of 6 metres, it was the largest natural freshwater lake in the Hawaiian Islands. On June 2, 2018, the lake was destroyed when lava flows from Kīlauea's lower Puna eruption boiled it away and completely filled the entire basin

Popocatépetl is 70 km (43 mi) southeast of Mexico City, from where it can be seen regularly, depending on atmospheric conditions. Until recently, the volcano was one of three tall peaks in Mexico to contain glaciers. It is linked to the Iztaccihuatl volcano to the north by the high saddle known as the Paso de Cortés.