LOOK: Chile's Calbuco volcano amazing and unbelievable photos, erupts for the first time in 42 years

The Calbuco volcano in southern Chile has erupted for the first time in more than 42 years on Wednesday, April 22 2015.

Chilean authorities evacuated around 4,000 residents of the nearby Ensenada district, according to the Chilean government's official Twitter account. President Michele Bachelet declared a "constitutional emergency" due to the eruption.

Calbuco is located in a sparsely populated area of the Los Lagos Region and is considered one of the top three potentially dangerous volcanoes in Chile.

Here are some fast facts about Calbuco volcano, courtesy of CNN Weather Center:

• First eruption since 1972
• One of the most active volcanoes of the southern Chilean Andes
• 2003 meter high volcano is capped by a 400-500 meter wide summit crater

Checkout some of the amazing and unbelievable photos of Calbuco volcano shared on online social networking services.

A general view of the Calbuco volcano from Puerto Montt, 1000 km south of Santiago, Chile on April 22nd 2015. The Chilean authorities have declared a red alert as the smoke column from the volcanic eruption has reached a height of 20 km. Around 1500 residents from nearby towns have been ordered to evacuate their homes. Credit: EPA

A photo posted by The Economist (@theeconomist) on Apr 23, 2015 at 3:05am PDT

CHILE - View from Frutillar of lava spewing from the Calbuco volcano. By @mbernetti #AFP pic.twitter.com/f9nZtBByE7

— AFP Photo Department (@AFPphoto) April 23, 2015

Some updated images of the #Calbuco volcano eruptions in Chile: http://t.co/pQPwL3MDVN Otherworldly scene. pic.twitter.com/GShK8idOEP

— Chicago Sun-Times (@Suntimes) April 23, 2015

#Video Volcán en Chile hace erupción http://t.co/7cHALKtpMm pic.twitter.com/qJY4t7CYYz

— Joaquín López-Dóriga (@lopezdoriga) April 23, 2015

Just wow! Some incredible pics of Chile’s #Calbuco volcano erupting http://t.co/PFURPdrWtQ #chile #volcano #volcan pic.twitter.com/HoxS3ori2b

— Observing Space (@ObservingSpace) April 23, 2015

Thousands evacuated after Calbuco volcano in southern #Chile erupts http://t.co/WTYHffyzth pic.twitter.com/Bku8K98FWA

— BBC News US (@BBCNewsUS) April 22, 2015

Violent eruption continues tonight at Chile’s Calbuco volcano - @biobio pic.twitter.com/i9HiPPvoue

— BuzzFeed Storm (@BuzzFeedStorm) April 23, 2015

This is one of the greatest photos I've ever seen, of the Calbuco volcano eruption. By @JohnGGalt. pic.twitter.com/zIGgNXVxFl

— Gus Bruno (@gusbru07) April 22, 2015

Chile's Calbuco volcano has erupted. STORY: http://t.co/ZKqujoVabt Photo credit: http://t.co/x7Y2jlzeN1 #Calbuco pic.twitter.com/PnUI28lMEJ

— 7 News Sydney (@7NewsSydney) April 22, 2015

#Calbuco #Chile volcano erupting live now! Taken from Puelche. pic.twitter.com/B88lA7JC8N

— urbaneer (@urbaneer) April 22, 2015

#eruption #erupcion #calbucovolcano #volcancalbuco #chile #cochamo #patagonia #southamerica #smoke #ashes #alert #puertovaras #puertomontt #volcan #volcano

A photo posted by Raul Alvarez Klein (@raulalvarezklein) on Apr 22, 2015 at 5:14pm PDT

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