During an eruption, the sea temperature around the island may increase from just above freezing to about.

During the volcanic eruption the whole of southern Europe is blanketed by ash.

During a volcanic eruption the magma that leaves the underground is called lava.

During an excavation in 2004, a team of archaeologists discovered cultural remains buried by the 1815 eruption.

During the eruption, an earthquake occurred with an epicentre near the village of Jedy.

During the intermediate phase, there were several eruptions which produced pyroclastic flows like those that destroyed Saint-Pierre in the 1902 eruption.

During a powerful eruption on August 30, 1902, a pyroclastic flow extended further east than the flows of 8 and 20 May.

During the past 11, 000 years, Nevado del Ruiz passed through at least 12 eruption stages, which included multiple slope failures ( rock avalanches ), pyroclastic flows and lahars leading to partial destruction of the summit domes.

During recorded history, eruptions have consisted primarily of a central vent eruption ( in the caldera ) followed by an explosive eruption, then lahars.

During the 1887 eruption, about 2½ million tons ( 2. 3 million metric tons ) of lava per hour pours out, covering an area of 29 km².

During the eruption, half of the town was crushed and the island expanded in length.

During the earlier part of the Spanish Colonial Era, Ambil was reported to be in eruption.

During the early days of the eruption, the rate of lava and tephra emission from the fissure was estimated to be 100 cubic metres per second ( 3, 500 cubic feet per second ), and within two days, the lava fountains had built a cinder cone over 100 metres ( 330 ft ) high.

During the afternoon, this resulted in a huge gas eruption.

During the final phase of this eruption, a lava flow filled the basin formed during the collapse of Half Cone.

During the so-called Mývatn fires, caused by the eruption of the nearby volcano Krafla in 1729, the village was destroyed by a lava stream.

During the millions of years since the eruption, the adjacent rock of the Ogallala and older formations have been removed leaving the valley filling basalt perched atop a long ridge.

During the last stages of eruption, different and more resistant forms of lava that were cooler than those flows that created the shield volcano remained to form the current peak.

During the 1949 eruption, three vents — Duraznero, San Juan and Hoyo Negro — opened and lava was erupted.

During the final stages of the eruption, the centre of the Aira Caldera sank by about, due to subsidence caused by the emptying out of the underlying magma chamber.

During this eruption 2007 a caldera collapse occurred at the volcano.

During the summers of 1978 and 1979, Johnston led studies of the ash-flow sheet emplaced in the 1912 eruption of Mount Katmai in the Valley of Ten Thousand Smokes.

During Mount St. Helens ' eruption in 1980, of tephra was deposited from southeastern British Columbia to Manitoba.

During welding, the glass shards and pumice fragments adhere together ( necking at point contacts ), deform, and compact together, resulting in a ' eutaxitic fabric ' ( see image and contrast with the ash shapes in unwelded tuff ).

During periods when resources were scarce, archaeological studies of ancient waste dumps show less household waste ( such as ash, broken tools and pottery )— implying more waste was being recycled in the absence of new material.

During the past two decades, more than 60 airplanes, mostly commercial jetliners, have been damaged by in-flight encounters with volcanic ash.

During the Highland Clearances, many Scottish Highlanders were moved off their crofts, and went to industries such as fishing and kelping ( producing soda ash from the ashes of kelp ).

During the 1981 tournament, Bernard Langer climbed up an ash tree by the 17th green to play his third shot.

During over 60 hours, the volcano erupted an estimated 28 km³ of ash flows and tephra representing 13 km³ of magma volume.

Event: During the Kuala Lumpur to Perth leg of British Airways Flight 9 on 24 June 1982, volcanic ash caused all four engines of the Boeing 747 aircraft to fail.

During 22 May the ash plume fell to around 10 km altitude, rising occasionally to 15 km.

During those months, 4000 cattle died due to gases and the lack of grazing lands, owing to the ash.

During this eruption, volcanic ash and pyroclastic projectiles rained down on the community, destroying homes and sterilizing agricultural lands in Capelo and Praia do Norte.

During the concert ( specifically, during the performance of Equinoxe Part 5 ), the amount of fireworks being used and the direction of the wind did indeed cause debris to rain down on the audience, covering them in ash.

During the latest eruption in 2011, Indonesia closed a domestic airport near the volcano for several days following ash emissions that reached 2, 000 meters into the atmosphere.

During the following five and a half days of nearly continuous eruption, residents of Nikolski ( 47 miles southwest ) were stranded for periods of up to three weeks ; Unalaska ( 73 miles northeast ) was repeatedly dusted with ash and flights into and out of this major fishing hub were frequently disrupted ; floating rafts of scoria and high visibility prompted the Coast Guard to close Umnak Pass to marine traffic ; and the Bering Pacific cattle ranch on the flanks of Okmok was periodically evacuated, once during noon-time darkness caused by heavy ash fall.

During the reading, the ash rods used to communicate shatter and the two thirds of Hen Wen's answer are discouraging and vague.

During the filming, an organised prank was played upon Cook and Moore by Richard Branson where ' police ' arrive and suspiciously sniff the contents of an ash tray to the dismay of the unnerved and wary pair.

During the day on April 3, the island was covered by a thick cloud of dark ash that reached 2. 5 to 5 kilometers high.

During this period, Cerro Azul sometimes erupted daily, sending columns of ash as far as 6 or 7 kilometers ( about 4 mi ) into the air.

During the most recent eruption in August 2008, the volcanic ash reached the town of Severo-Kurilsk located 60 km north-east.

During the sacrifice ceremony, the volcano ejected ash.