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 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 eruption, ash was sent thousands of metres into the air and the subsequent rain of ash caused 80 % of the buildings in Rabaul to collapse.

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 this period, the town suffered an earthquake as well as the destruction of the Muslim quarter in 1834 by Egyptian troops, apparently as a reprisal for the murder of a favored loyalist of Ibrahim Pasha.

During his presidency, an earthquake near Ambato severely damaged the city and surrounding areas and killed approximately 8, 000 people.

* 1967 – During the fourth day of celebrating its 400th anniversary, the city of Caracas, Venezuela is shaken by an earthquake, leaving approximately 500 dead.

During the consultations on 21 May an earthquake occurred ; the participants were terrified and wished to break up the assembly, but Courtenay declared the earthquake a favorable sign which meant the purification of the earth from erroneous doctrine, and the result of the " Earthquake Synod " was assured.

During the 1906 San Francisco earthquake, a statue of Agassiz fell from its niche on the front of the Stanford University zoology building.

During the Byzantine period, when the great earthquake of AD 551 destroyed most of the cities of Phoenicia, Beirut's School of Law took refuge in Sidon.

During the 1906 San Francisco earthquake, the adjacent brick church was destroyed.

During World War II US B-29 bomber attack destroyed Tōkai Seiki's Yamashita plant in 1944, and the Itawa plant collapsed in the 1945 Mikawa earthquake, and Soichiro Honda sold the salvageable remains of the company to Toyota after the war for ¥ 450, 000, and used the proceeds to found the Honda Technical Research Institute in October 1946.

During this drinking jag, he worked out a plan to exploit the earthquake for his own ends.

During the 1994 earthquake, the hospital remained open and treated over 1, 000 patients that came to the facility during the first few days following the 6. 7 magnitude quake.

During the construction of St. Francis River Bridge there was an earthquake that made the river unsuitable for boats to pass through.

During an earthquake, a meander in the river could be cut short, creating a new river island or a horseshoe lake.

During his reign he collected one of the largest libraries in the world, but it was destroyed in the Lisbon earthquake of 1755.

During an earthquake seismic waves propagate spherically out from the hypocenter.

During the earthquake of 1985 both the Benito Juárez and Nonoalco-Tlaltelolco complexes suffered major damage, with some buildings collapsing.

During an earthquake on August 23, 2011 three of the four top spires fell off the cathedral.

During the 14th and 16th centuries there were several of them, but the worst of all was the 1755 Lisbon earthquake, which destroyed the Gothic main chapel along with the royal pantheon.

During actual construction, due to changes in building codes, in particular seismic design criteria in the wake of the 921 earthquake, construction costs grew to NT $ 436. 5 billion.

During the 1970s, the El Niño climate pattern, an earthquake, and overfishing drastically affected the fishing industry, and restrictions were imposed to ensure its survival.

During the earthquake, the portions of the rock around the fault that were locked and had not moved ' spring ' back, relieving the displacement in a few seconds that the plates moved over the entire interseismic period ( D1 and D2 in Time 3 ).

During the 1989 Loma Prieta earthquake, higher accuracy for the recall of the earthquake was documented in participants who had distinctive experiences during the earthquake, often including a substantial disruption in their activity.