In Indonesia, the Kawah Ijen volcano earned its nickname the “electric blue fire” because of its iconic blue lava. Kawah Ijen is one of the most structurally-complex volcanos in Java. Also, a native village of 12000 people lies in the volcano’s crater.
The “blue lava,” which is actually liquid sulfur, is caused by a high amount of sulfur touching air. This lava is also blue because it is extremely hot, with the temperature of 1112 degrees Fahrenheit. Also Furthermore, this blue lava can be only seen at night.
Also, blue lava, as well blue smoke, can be seen inside the crater. an amazing fact is that as well as blue lava there is also blue smoke The world’s most acidic lake also lies in this crater.
According to Business Insider, there is also a very dangerous job in the crater, digging for sulfur. The miners wake up at 1 to 2 A.M. and hike to the volcano. Then they began to hunt for sulfur. When they finish they need to lift it up the mountain. A quote said : every day carrying our sulfur, if our shoulders swell, its normal.