introduction to Volcanoes by siphiwo.pptx

Volcanic eraptic activity

1. Volcano: Mount Fuji By Siphiwokuhle

2. Location & Formation Near the  Pacific Ocean  coast in  the central   of Honshu . It is a volcano that has been dormant since its last eruption, in 1707, but is still generally classified as active by geologists .  It is a stratovolcano (composite volcano). According to tradition, the volcano was formed   by an   earthquake over 2.6 million years ago . the first eruptions and the first peaks probably occurred sometime after 700,000 years ago.

3. .Found near a Destructive plate boundary

4. The present-day mountain is a composite of three successive volcanoes: at the bottom is Komitake , about 100,000 years ago and, finally, by the most recent, Shin Fuji. Shin Fuji probably first became active about 10,000 years ago and has continued ever since to erupt occasionally. In the process it has added the summit zone of the volcano, to date it is around 3 776 metres.

5. Fuji as a Tourist Attraction Rising to 3,776 metres, Mount Fuji-san is the tallest mountain in  Japan  and is known for its graceful conical form. It is the country’s sacred symbol, and temples and shrines are located around and on the volcano .  Tourism in the area is highly developed, with amusement parks, botanical gardens, ski resorts, and other recreational sites.

6. Problems involved Volcanic eruptions create smog and harmful gases that make it hard to breathe and irritate the skin, eyes, nose, and throat . They can contaminate water supplies. Damage infrastructure

7. Lakes Formed In ancient times, lava flow from volcanic eruption of Mt. Fuji spread across the area, damming up rivers and resulting in the formation of these lakes Yamanaka- ko Kawaguchi- ko Sai- ko Shoji- ko , Motosu-ko

8. How to survive a volcanic eruption Avoid areas downwind and river valleys downstream of the volcano. Take temporary shelter from volcanic ash in the location where you are. Cover ventilation openings and seal doors and windows