JAKARTA, Jan. 10 (Xinhua) -- Mount Merapi, located near the densely populated city of Yogyakarta, the capital of the Special Region of Yogyakarta Province in Indonesia, emitted hot lava on Friday.
That, and it's not a great idea to attempt to plug them up with concrete. The most common type of lava flow is basaltic, making up around 90 percent of all lava flows on the planet. In these flows ...