Mount Sinabung 2015 Update - Mount Sinabung, one of Indonesia's most active volcanoes, has been sending clouds of ash and debris into the sky since early June. And now, the highly active volcano is continuously making headlines after a long period of dormancy.

Since the increasing activity of Mount Sinabung sparked fears among volcanologists, the Indonesian authorities have raised the alert status of the volcano to the highest level.

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After closely monitoring its activity, Mount Sinabung erupted on June 16 and its eruption has since continued. As previously reported, at least 48 avalanches of hot ash surged down its slopes and it has also been shooting smoke and ash over 700 meters into the air.

On Friday, environment videographer James Reynolds shared a video of Mount Sinabung's intense eruptions of ash, gas and debris. According to Washington Post, the video showed Sinabung's pyroclastic flow hurtling down the mountain like an avalanche as it destroyed everything on its path.

This was remarkable, ash cloud resembled super cell thunderstorm, detached from #volcano #Sinabung #Indonesia pic.twitter.com/WfwUcsJ666

— James Reynolds (@EarthUncutTV) June 19, 2015

A pyroclastic flow is a mixture of hot gas, rock and lava or ash with temperatures soaring at around 1000 degrees, The Telegraph noted. And as per the U.S. Geological Survey (USGS), it can vary in speed but is universally deadly and destructive.

"A pyroclastic flow will destroy nearly everything in its path," the agency said. "With rock fragments ranging in size from ash to boulders traveling across the ground at speeds typically greater than [50 mph], pyroclastic flows knock down, shatter, bury or carry away nearly all objects and structures in their way."

USGS also added that the extreme temperatures of rocks and gas inside pyroclastic flows are generally between 400 and 1,300 degrees Fahrenheit, which can burn combustible materials such as petroleum products, wood, vegetation, and houses.

While Mount Sinabung probably rested dormant without eruption for four centuries, it could still be on the verge of a violent eruption.

Despite the danger, The Weather Channel has learned that thousands of residents living near the volcano are refusing to leave their homes. As said by local disaster mitigation agency head Subur Tambun, only 10,000 of about 33,000 villagers living within the main danger zones have evacuated into much safer settlements.

Meanwhile, Indonesia, the expansive archipelago nation with more volcanoes than any other country, is prone to volcanic eruptions and seismic upheavals because of its location on the Pacific "Ring of Fire."

TagsMount Sinabung, Indonesia, Volcano, volcanic eruption, Pyroclastic Flow