(01 of23)
Open Image ModalLightning is seen within a cloud of volcanic matter as it rises from Eyjafjallajokull volcano April 18, 2010 Eyjafjallajokull, Iceland. A major eruption occurred on April 14 which resulted in a plume of volcanic ash being thrown into the atmosphere over parts of Northern Europe. Air traffic has been subject to cancellation or delays, as airspace across parts of Northern Europe has been closed. (Photo by Terje Sorgjerd/Getty Images)
(02 of23)
Open Image Modal The Eyjafjallajokull volcano releasing ash on May 16, 2010 in Iceland. Air passengers are warned they could face further disruption after ash from a volcanic eruption in Iceland moves towards UK airspace. (Photo by Orvar Porgiersson / Barcroft Media / Getty Images)
(03 of23)
Open Image ModalThis handout picture captured by NASA\'s Moderate Resolution Imaging Spectroradiometer (MODIS) on board the Aqua satellite on May 8, 2010 shows Iceland\'s Eyjafjallajokull volcano continuing to emit a dense plume of ash and steam. Iceland\'s Eyjafjoell volcano threatened European skies with a new ash cloud Friday raising the risk of more flight cancellations, officials said. AFP / NASA MODIS - RESTRICTED TO EDITORIAL USE (Photo credit should read NASA MODIS/AFP/Getty Images)
(04 of23)
Open Image ModalAmazing pictures of Northern Lights over the the Eyjafjallajoekull Volcano eruption on April 24, 2010 in Iceland. Eruptions under a glacier in the Eyjafjallajoekull area seem a long way away but the smokey fallout caused by the eruption interacting with ice and water hundreds of miles away has caused disruption to many flights and left hundreds holidaymakers stranded abroad. (Photo by Orvar Atli Thorgeirsson/ Barcroft Media / Getty Images)
(05 of23)
Open Image ModalLightning is seen within a cloud of volcanic matter as it rises from the erupting Eyjafjallajokull volcano April 20, 2010 Eyjafjallajokull, Iceland. A major eruption occurred on April 14, 2010 which has resulted in a plume of volcanic ash being thrown into the atmosphere over parts of Northern Europe. Air traffic has been subject to cancellation or delays, as airspace across parts of Northern Europe has been closed. (Photo by Terje Sorgjerd/Getty Images)
(06 of23)
Open Image ModalLightning is seen within a cloud of volcanic matter as it rises from the erupting Eyjafjallajokull volcano April 20, 2010 Eyjafjallajokull, Iceland. A major eruption occurred on April 14, 2010 which has resulted in a plume of volcanic ash being thrown into the atmosphere over parts of Northern Europe. Air traffic has been subject to cancellation or delays, as airspace across parts of Northern Europe has been closed. (Photo by Terje Sorgjerd/Getty Images)
(07 of23)
Open Image ModalThe Eyjafjallajoekull volcano erupting on April 16, 2010 in Eyjafjallajokull, Iceland. The continued eruption of the Eyjafjallajokull volcano has brought closed European airspace for a third day and looking at these incredible pictures it may continue to do so for some time. Full time comet scientist and part time volcano photographer Marco Fulle flew at sunset over the volcano to shoot these incredible images. (Photo by Marco Fulle / Barcroft Media / Getty Images)
(08 of23)
Open Image ModalIncandescent materials, ash and smoke are spewed from the Popocatepetl Volcano as seen from Santiago Xalitzintla, in the Mexican central state of Puebla, on April 24, 2012. Residents at the foot of Mexico\'s Popocatepetl volcano no longer sleep soundly since the towering mountain roared back into action over a week ago, spewing out a hail of rocks, steam and ashes. The volcano, Mexico\'s second highest peak at 5,452 metres, started rumbling and spurting high clouds of ash and steam on April 13, provoking the authorities to raise the alert to level five on a seven-point scale. AFP PHOTO//RONALDO SCHEMIDT (Photo credit should read Ronaldo Schemidt/AFP/GettyImages)
(09 of23)
Open Image ModalLava spews as smoke billows from a crater of the giant Etna Volcano on the southern Italian island of Sicily on January 6, 2012. A column of hot ash spewed high into the sky from Italy\'s Mount Etna on the Mediterranean island of Sicily on January 5, as Europe\'s highest active volcano rumbled back to life. AFP PHOTO/ MARCELLO PATERNOSTRO (Photo credit should read MARCELLO PATERNOSTRO/AFP/Getty Images)
(10 of23)
Open Image Modal In this photo provided by NASA, The eruption of the Cleveland Volcano is seen as photographed by an Expedition 13 crewmember on the International Space Station May 23, 2009 in the Aleutian Islands, Alaska. The Cleveland Volcano has erupted again yesterday sending a cloud of ash 15,000 feet into the sky according to reports on December 30, 2011. (Photo by NASA via Getty Images)w
(11 of23)
Open Image ModalThe historic Yazoo & Mississippi Valley Railroad Station is surrounded by floodwater May 17, 2011 in Vicksburg, Mississippi. The Mississippi river at Vicksburg is expected to crest May 19. Heavy rains have left the ground saturated, rivers swollen, and have caused widespread flooding along the Mississippi River from Illinois to Louisiana. (Photo by Scott Olson/Getty Images)
(12 of23)
Open Image Modal Lightning flashes over the Golden temple during the storm on April 29, 2012 in Amritsar, India. (Photo by Munish Byala/Hindustan Times via Getty Images)
(13 of23)
Open Image ModalLightning flashes during a thunderstorm early on September 13, 2011 in Las Vegas, Nevada. Stormy weather is expected to continue through Thursday.
(14 of23)
Open Image ModalThe eye of the hurricane is expected to make landfall at Galveston Island early Saturday (13 September 2008) morning.
(15 of23)
Open Image ModalAn image from Shane Kirk\'s book Storms of the Midwest, taken on June 20, 2009 between Lebo and Williamsburg, Kansas. This storm had several funnel clouds and a brief tornado. While many storm photographers in America\'s midwest spend their lives chasing tornados Shane Kirk has a different obsession, lightning. The 40 year old commercial photographer drives between 15,000 and 20,000 miles a year chasing storms. Shane\'s images now feature in his book Storms of the Midwest. (Photo by Shane Kirk/ Barcroft Media / Getty Images)
(16 of23)
Open Image ModalClouds gather over apartment buildings ahead of a thunderstorm on the east side of Manhattan July 26, 2012 in New York. AFP PHOTO/Stan HONDA (Photo credit should read STAN HONDA/AFP/GettyImages)
(17 of23)
Open Image ModalThe Puyehue volcano in Southern Chile emanates viscous lava and large quantities of ash during its eruption on June 05, 2011 in Cordon del Caulle in Andes Region, Chile. Smaller towns near the epicenter have not been severely hit by the eruption but by a heavy cloud of ashes that is blowing east due to the winds. The Puyehue volcano is 600 km from Chilean Capital city, Santiago, and 90 km from Argentine city, Bariloche. Many Argentine provinces (NeuquÈn, Rio Negro, Chubut, Mendoza, La Pampa, San Luis, San Juan, La Rioja, CÛrdoba and Buenos Aires) have been affected and local airports had to cancel and rearrange flights. It is the first eruption of Puyehue since 1960, after the Valdivia earthquake.(Photo by Ivan Konar/LAtinContent/Getty Images)
(18 of23)
Open Image ModalThe Puyehue volcano in Southern Chile emanates viscous lava and large quantities of ash during its eruption on June 05, 2011 in Cordon del Caulle in Andes Region, Chile. Smaller towns near the epicenter have not been severely hit by the eruption but by a heavy cloud of ashes that is blowing east due to the winds. The Puyehue volcano is 600 km from Chilean Capital city, Santiago, and 90 km from Argentine city, Bariloche. Many Argentine provinces (NeuquÈn, Rio Negro, Chubut, Mendoza, La Pampa, San Luis, San Juan, La Rioja, CÛrdoba and Buenos Aires) have been affected and local airports had to cancel and rearrange flights. It is the first eruption of Puyehue since 1960, after the Valdivia earthquake.(Photo by Ivan Konar/LAtinContent/Getty Images)
(19 of23)
Open Image ModalMount Merapi, Indonesia-September 6, 2006: This is a satellite image showing Mount Merapi, Indonesia. (credit: DigitalGlobe)
(20 of23)
Open Image Modal People flee a landslide on a speed boat as a result of aftershocks on May 19, 2008 in Yingxiu, Sichuan Province, China. (Photo by Chen Yuxiao/ChinaFotoPress)
(21 of23)
Open Image ModalA landslide falls down the side of a mountain in Sabinas, some 20 kilometers, 12 miles, west of Manizales, Colombia, Thursday, May 29, 2008. No victims were reported, officials said. (AP Photo/ John Jairo Bonilla)\r\n
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Open Image Modal(23 of23)
Open Image ModalA lava dome can be seen inside the crater of Mt. Shinmoe in the Kirishima mountain range straddling Miyazaki and Kagoshima prefectures in southwestern Japan in this photo taken from a Kyodo News helicopter on Jan. 31, 2011. The Miyazaki Local Meteorological Observatory said the lava dome on the 1,421-meter volcano has been rising. (Kyodo)