Japan Volcanoes: NarukoKazangun

NarukoKazangun may not be as popular as Mount Fuji, but it still warrants your attention. Once you know a little more about this particular volcano, you may have a good idea why Naruko is such a popular town.

Japan is home to many, many volcanoes and NarukoKazangun is just one of them. However, NarukoKazangun is a stratovolcano and is found in Osaki, Miyagi Prefecture.

Stratovolcanos are the best looking volcanoes, but they can also be the most dangerous.

Osaki was formed by the merging of several towns including Naruko, an area made popular by its hot springs.

What makes NarukoKazangun special is that is has a caldera that is about 7 kilometers wide and a number of lava domes. One of its lava domes is Mount Kurumigatake, specifically located in the middle of the caldera.

Lava domes are formed because of lava that is too viscous to flow farther. They are also described as dynamic because they constantly change. NarukoKazangun has four lava domes to date.

It is because of NarukoKazangun that Naruko enjoys visits from tourists. Water in hot springs is groundwater that is geothermally heated.

The hot springs from NarukoKazangun are natural and filled with minerals that people are looking for.

These hot springs of Naruko have been enjoyed by the Japanese people for centuries and still draw more people every year. There are five major hot spring areas in Naruko alone.

NarukoKazangun cannot be easily discerned by the untrained eye. However, it is classified as an active volcano by the Japan Metrological Agency.

NarukoKazangun is a very old volcano. In fact, it is thousands of years old. When two pyroclastic flows came together about thousands of years ago and on separate occasions, the volcano was formed. The lava domes were formed more recently about 20,000 years ago.

Through those thousands of years, NarukoKazangun continued to be active and there were lava domes that were formed and subsequently destroyed. A strong eruption caused some Tephra to be emitted, which is said to be what helped create Katanuma Lake. The lake looks like it changes color depending on the light.

Since it is the NarukoKazangun that is said to be why Katanuma Lake exists, it comes as no surprise that this lake is very acidic. It is one of Japan’s most acidic lakes so a swim is out of the question.

NarukoKazangun was said to have erupted in 837 after several days of tremors. This is how the volcano got its modern name. They say that the name is derived from the word “narugo.” This Japanese word, roughly translated, means “the place with the trembling sound.”

That particular eruption was said to have made NarukoKazangun spew hot water instead of lava that was described to have run like a river.

These days, NarukoKazangun erupting is far from people’s minds as they enjoy the natural hot springs and relieve clogged arteries and skin ailments.

Naruko remains a thriving tourist spot that will continue to draw more tourists because of its beautiful scenery in autumn. Sometimes the deadliest products of nature can create fantastic natural wonders. Just visit NarukoKazangun and Naruko so you can see why.


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