Wed, August 15, 2012
Technology > Science

Underwater volcanic eruptions

2012-08-15 02:59:39 GMT2012-08-15 10:59:39(Beijing Time)

Smoke is seen after an underwater volcano erupted in Hunga Ha'apai, Tonga March 18, 2009. The eruption is only 34 nautical miles off the coast of Tonga's capital Nuku'alofa. Picture taken March 18, 2009. (REUTERS/Matangi Tonga Online/Handout)

An area of floating pumice 250 nautical miles in length and 30 nautical miles wide in the South Pacific ocean. A huge cluster of floating volcanic rocks covering almost 26,000 square kilometres (10,000 square miles) has been found drifting in the Pacific. (AFP Photo/New Zealand Defence Force)

An undersea volcano is seen erupting off the coast of Tonga, sending plumes of steam, ash and smoke up to 100 metres into the air, on March 18, 2009 off the coast of Nuku'Alofa, Tonga. The volcano, which is situated approximately 6 miles off of the main Tongan island of Tongatapu, is one of around 36 undersea volcanos clustered in the area. There is currently no danger to residents of the island as the gases are blown offshore, and residents noted the eruptions began on Monday after a series of sharp earthquakes were felt in the capital. (Photo by Dana Stephenson//Getty Images)

In this photo taken and released by the Canary regional government on Saturday Oct. 15, 2011, fragments called pyroclasts from an underwater volcano are seen on the surface of the sea off Restinga on the Canary island of El Hierro, Spain. The regional government of Spain's Canary Islands has closed access to a port on El Hierro, ordered shipping to sail away from the area and banned aircraft from flying over the island's southern tip after an underwater volcano began spewing smoking debris. Scientists have detected airborne volcanic fragments called pyroclasts rising from the sea off the port of La Restinga, the government said in a statement. A research vessel that had been taking samples from the sea has been ordered to desist. (AP Photo/Canary Island Government)

Volcanic activity in the sea off the Canary island of El Hierro is seen in this areal photo taken and released by the Canary Islands Government on Friday Nov. 4, 2011. The regional government of the Canary Islands on Saturday Nov. 5, 2011has ordered the evacuation of homes and road closures near the southern tip of El Hierro after two earth tremors and increased offshore volcanic activity caused a buildup of malodorous debris floating on the sea.Seismic activity began in the area on July 17 and residents have since been rocked by more than 10,000 tremors, while underwater fissures have released an almost continuous flow of sulfurous gases, smoke and hot objects.El Hierro has some 11,000 residents and was formed by volcanic activity. (AP Photo/Canary Islands Government)

An eruption of an underwater volcano is seen in the Pacific Ocean near the uninhabited Minami Iwojima Island, about 1,400km (870 miles) south of Tokyo July 3, 2005. The Japanese Coast Guard sent a plane to investigate the approximately 1,000-metres (3,280-ft) column of steam after it was spotted on Saturday by a member of Japan's armed forces stationed on the island of Iwojima. (REUTERS/Japan Coast Guard/Handout)

Stunning views from erupting underwater volcanoes.


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