How was Mount Bromo formed?

Mt Bromo crater 2012. The Tengger caldera was formed in five stages. 1) The original Tengger Volcano was built up by eruption of pyroclastic deposits and lava flows to a height of 4500 m. This original volcano was called Ngadisari, and formed 820,000 years ago. read more

Mount Bromo (Indonesian: Gunung Bromo), is an active volcano and part of the Tengger massif, in East Java, Indonesia. At 2,329 meters (7,641 ft) it is not the highest peak of the massif, but is the most well known. read more

Bromo Volcano (Tengger Caldera) Mount Bromo (2392m) is a small pyroclastic cone which rises 133m above the surrounding floor of the massive (9x10km) Tengger Caldera. read more