Kya Kabhi Socha Aapne?
Jab bhi TV par news aati hai ke koi volcano phata toh hum dekhte hain ke pahad se laal rang ka laava nikal raha hai, aasman mein kaali raakh udi ja rahi hai, aur aas paas ka sab kuch jal raha hai. Yeh manzar bohat dramatic aur khatarnak hota hai.
Lekin kya aapne kabhi socha ke volcano kaise phatta hai? Aakhir pahad ke andar aisi kya cheez hoti hai jo is tarah aag aur dhuaan bahar fekti hai؟
Aaj hum bilkul simple aur scientific andaz mein samjhenge ke volcano kaise phatta hai step by step, aasan zaban mein!
Volcano Kya Hai Pehle Yeh Samajh Lein
Volcano ko samajhna zaroori hai taake hum is sawaal ka jawab de sakein ke yeh aakhir phatta kyun hai.
Volcano asal mein earth ki surface mein ek opening hai jaise zameen par koi crack ya sorakh jahan se neeche ka hot molten rock, gases aur ash bahar aati hai.
Earth ke andar temperature bohat zyada hai roughly 5000°C tak! Is garmi ki wajah se neeche ki rocks melt ho kar magma mein badal jaati hain. Yeh magma halka hota hai aur upar ki taraf dhakel leta hai. Jahan bhi earth ki surface mein koi weak area hota hai wahan se magma bahar aa sakta hai.
Jab yeh magma surface tak pahunchta hai toh ise lava kehte hain. Aur isi poori process ko volcanic eruption kehte hain.
Volcano Kaise Phatta Hai Step by Step Process
Ab aate hain core question par volcano kaise phatta hai. Yeh process 4 simple steps mein samajh sakte hain:
Step 1 : Magma Ka Banna
Earth ke andar mantle naam ki layer mein bohat high temperature aur pressure hota hai. Yahan ki rocks melt ho kar magma mein badal jaati hain.
Yeh magma solid rocks se halka hota hai isliye yeh upar ki taraf badhta hai. Bilkul waise jaise paani mein tel upar aa jaata hai.
Step 2 : Magma Ka Magma Chamber Mein Ikathha Hona
Magma earth ke andar se upar badhta hai aur ek jagah ikathha ho jaata hai. Isse kehte hain magma chamber.
Yeh chamber ek underground tank jaisa hai jo molten rock se bhara hota hai. Kuch volcanoes mein yeh chamber bohat bara hota hai kilometers tak!
Step 3 : Pressure Ka Barhna
Magma chamber mein lagatar naya magma aata rehta hai. Jab chamber mein jagah kum ho jaati hai toh pressure barhna shuru ho jaata hai.
Is pressure mein gases bhi shamil hoti hain jaise water vapor, carbon dioxide aur sulfur dioxide. Yeh gases magma ke andar bubble ki tarah phase jaati hain.
Jaise aap soda ki bottle zor se hilate ho aur phir kholte ho gas ka pressure tezi se bahar aata hai. Bilkul waise hi volcano mein hota hai!
Step 4 : Eruption Volcano Phatna
Jab pressure itna zyada ho jaata hai ke earth ki surface rock use nahi rok sakti tab volcano phatta hai!
- Magma (ab lava ke naam se) tezi se bahar nikalta hai
- Gases zor se release hoti hain
- Rocks ke pieces (tephra) hawa mein udd jaate hain
- Ash (raakh) aasman mein fail jaati hai
Yeh hai volcano ke phattne ka poora process!
Volcano Ke Types Sab Ek Jaisa Nahi Phatta
Volcano kaise phatta hai yeh magma ki thickness aur gas ki quantity par depend karta hai. Different types ke volcanoes alag tarah se phatte hain:
Hawaiian Eruption : Ismein laava slow aur gentle flow mein aata hai. Bilkul dangerous nahi hota. Log khade ho kar dekh sakte hain. Hawaii ke volcanoes is tarah phatte hain.
Strombolian Eruption : Ismein chhote chhote explosions ke saath laava upar feka jaata hai. Italy ka Stromboli volcano is tarah phatta hai isliye iska naam Strombolian hai.
Vulcanian Eruption : Ismein dark ash cloud aur moderate explosions hote hain. Italy ke Vulcano island se aaya hai yeh naam.
Plinian Eruption : Yeh sabse powerful type hai. Ash bohat oonchai tak jaati hai stratosphere tak! 79 AD mein Italy ka Mount Vesuvius is tarah phata tha jisne Pompeii city ko destroy kar diya.
Volcano Kyun Phatta Hai Main Causes
Volcano phattne ki 3 main causes hain:
1 : Plate Tectonics Earth Ki Plates
Earth ka outer surface doosre plates mein bata hua hai. Yeh plates continuously hilti rehti hain bohat slowly، roughly 2-5 centimeter har saal.
Jahan yeh plates ek doosre se dur jaati hain wahan magma upar aa sakta hai.
Jahan yeh plates ek doosre se takraati hain ek plate neeche jaati hai aur melt ho kar magma banati hai.
Jahan yeh plates side-slip karti hain wahan weak areas create hoti hain.
Duniya ke roughly 90% volcanoes inhi plate boundaries par paye jaate hain. Isiliye is area ko Ring of Fire kehte hain Pacific Ocean ke aas paas ka ilaqa.
2 : Hotspots Underground Heat Zones
Kuch volcanoes plate boundaries se door bhi hote hain. Inhe hotspot volcanoes kehte hain.
Yeh woh jagah hoti hai jahan earth ke core se extra garm material upar aata hai aur crust ko melt kar deta hai. Iski best example hai Hawaii islands. Hawaii Pacific plate ke beech mein hai kisi boundary par nahi.
3 : Rift Zones Badi Cracks
Jahan earth ki surface mein badi cracks hon jaise Africa mein Great Rift Valley wahan bhi magma upar aa sakta hai aur volcano bana sakta hai.
Volcano Phatne Ke Baad Kya Hota Hai Effects
Volcano eruption ke do tarah ke effects hote hain immediate aur long-term.
Short-Term Effects Turant Hone Wale Nuksan
Lava flow : Red hot laava jo bhi aata hai jala deta hai. Ghar, jungle, roads sab kuch.
Ash fall : Dark raakh upar se girta hai. Saans lene mein problem hoti hai, crops kharab ho jaate hain، aur kai din tak sooraj nahi dikhta.
Pyroclastic flow : Yeh sabse dangerous hai. Gas, ash aur rocks ka fast-moving cloud roughly 500 kilometer per hour ki speed mein aata hai! Iske saamne koi bach nahi sakta.
Landslides :Pahad ke pieces girna.
Tsunami : Agar volcano ocean mein phata toh badi waves aati hain. 1883 mein Indonesia ka Krakatoa phata tha to tsunami se roughly 36,000 log mare the!
Long-Term Effects Baad Mein Hone Wale Asar
Climate par asar : Ash aur gases sooraj ko block kar sakti hain matlab temperature temporarily kam ho sakta hai. 1991 mein Philippines ka Mount Pinatubo phata to agli 2 saal duniya ka temperature roughly 0.5°C kam ho gaya tha.
Fertile soil : Yeh positive hai! Volcanic ash bohat fertile hoti hai isliye volcanoes ke aas paas bohat kheti hoti hai. Italy ke Naples ke aas paas volcanic soil bohat fertile hai wahan bohat achhi sabziyan ugti hain.
New land : Hawaii jaise islands volcanoes se bane hain. Laava samandar mein ja kar jamta hai aur nayi zameen bana deta hai.
Duniya Ke Famous Volcanoes
Mount Vesuvius : Italy mein hai. 79 AD mein phata tha jisne Pompeii city ko poori tarah daba diya. Aaj bhi active hai.
Mount St. Helens : USA ke Washington state mein hai. 1980 mein phata tha 57 log mare the aur ash 11 states tak fail gayi thi.
Krakatoa :Indonesia mein hai. 1883 mein phata tha duniya mein abhi tak ki sabse loud sound record ki gayi thi! 3000 kilometer door tak sunai di thi.
Eyjafjallajökull : Iceland mein hai. 2010 mein phata tha iski ash ki wajah se European flights cancel ho gayi thi.
Mauna Loa : Hawaii mein hai। Duniya ka sabse bara volcano (volume ke hisaab se). Last eruption 2022 mein hua tha.
Volcano Phatne Ki Warning Signs Pehle Kaise Pata Chalta Hai?
Scientists ab volcanoes ke phattne ka pehle se andaza laga sakte hain. Yeh signs dikhte hain:
Earthquakes increase: Chhote chhote zameen hilne lagti hai. Magma upar badhta hai to rocks hilte hain.
Ground shape change : Zameen slightly upar uthne lagti hai. Magma chamber jab barta hai to surface upar aa jaati hai.
Gas release increase : Special sensors se pata chalta hai ke zyada sulfur dioxide nikal raha hai.
Temperature increase : Ground aur lakes heat ho jaate hain.
Inhi signs ki madad se logon ko pehle hi safe jagah shift kiya ja sakta hai.
Aksar Poochhe Jane Wale Sawaal FAQ
Sawaal: Kya volcano kabhi bhi randomly phat sakta hai?
Jawaab: Nahi. Volcano achanak nahi phatta. Upar diye gaye warning signs pehle hi dikhne lagte hain. Kuch volcanoes dormant (soye hue) hote hain inke phattne ka risk kam hota hai.
Sawaal: Duniya mein kitne active volcanoes hai?
Jawaab: Scientists ke mutabiq duniya mein lagbhag 1,350 active volcanoes hain (jo last 10,000 saal mein phatey hain). Inmein se roughly 75% Pacific Ocean ke Ring of Fire mein hain.
Sawaal: Kya volcano ko rok sakte hain?
Jawaab: Nahi volcano ko rokna impossible hai. Lekin baarish ya paani se laava ko slow kiya ja sakta hai. Iceland mein kuch volcanoes ke aas paas paani daal kar laava ka flow divert kiya gaya tha.
Sawaal: Pakistan mein volcano hai kya?
Jawaab: Nahi Pakistan mein koi active volcano nahi hai. Sub-continent plate boundaries se door hai.
Sawaal: Volcano ke koi faide bhi hain?
Jawaab: Haan! Fertile land milti hai, gemstones aur minerals milte hain (diamonds, gold, copper), aur geothermal energy (earth ki garmi se electricity) bhi banai ja sakti hai.
Volcano Aur Climate Change Kya Connection Hai?
Ye jaanna bhi interesting hai ke volcano phatne se climate par asar padta hai lekin yeh asar temporary hota hai.
Jab koi bada volcano phatta hai toh uski ash aur sulfur dioxide sooraj ki light ko block kar deti hai jisse earth ka temperature temporarily kam ho sakta hai. Jaise 1991 mein Mount Pinatubo phata to agli 2 saal temperature 0.5°C kam ho gaya.
Lekin climate change aur volcano mein bohat farq hai volcano temporary cooling karta hai jabke greenhouse gases (jo hum coal aur petrol jalane se paida karte hain) permanent warming karte hain.
(Poori details ke liye hamara article Climate Change Kya Hai? zaroor padhein.)
Aakhri Baat Ek Khatarnak Lekin Dilchasp Natural Process
Volcano yeh duniya ki sabse khatarnak natural cheezo mein se ek hai. Lekin yeh hume earth ke andar ki woh taqat dikhata hai jo aksar hum bhool jaate hain.
Volcano kaise phatta hai yeh samajhne ke baad aap andaza laga sakte hain ke earth kitni powerful hai.
Shayad aap kabhi Italy ya Hawaii jaayen aur wahan ka koi volcano dekhein toh yaad karna ke us pahad ke neeche magma chamber hai، pressure barh raha hai، aur kabhi bhi woh phaat sakta hai.
Lekin itna bhi darne ki zaroorat nahi kyunke scientists pehle warning de dete hain!
source: Big Socho
Aap yeh bhi parh saktay hain Climate Change Kya Hai.