The Yungainos ancestral saw often bloom, disappear and reconstruct their cities, from their appearance in the Cave of the Guitarrero 10.600 BC. The Earth fertility, the benevolent climate and the natural beauty of the territory caused that their inhabitants faced earthquakes and avalanches that time and time again destroyed the towns of the province, but the Yungainos always was there, challenging before the natural, proud disasters by to have been born in this one fertile and beautiful earth, reconstructing their cities with the high forehead always watching snow-covered mounts his to eter companions to us. They are dumb witnesses of which it was YUNGAY IN The past , the vestiges of towns in Queushu (Huarca), Marccayoc, Huansakay, Humancayan, Etzahuain, Ojotunan, Uchuscoto, Old Jato, Kisuar, ColloJirca and others (all with greater antiquity of 1.500 years)

The city of Yungay does not exist historical data about whichever times was destroyed by avalanches in the past pre-Hispanic but important vestiges of old destroyed towns exist and/or buried, it is for that reason that wise person Antonio Raimondi, writes: Yungay, has been founded on the ruins of another old town, being observed important rest of construction, previous to conquista(española), in the called cerrito Huansakay, located near panteón.

The history of the province of Yungay registers single facts happened after the arrival of the Spaniards in 1533, being the most painful following avalanches:

"06 of January of 1725: Violent earthquake which it produced the snow sliding from Monte Huandoy, which became Avalanche, devastating the town of Ancash, that was a population of 1.500 inhabitants located to four kilometers to the north of the present city of Yungay. That day the Epifanía of the Gentleman and the birthday of the mayor of the locality celebrated with great festejos, Don Melchor Punyan, when to 2 afternoon a lagoon was overflowed glacier, the one that with thousands of tons of mud and stones devastated the town.

"10 of January of 1962: An avalanche to the 06:05 p.m. took place, by loosening of an enormous ice cornice from the North tip of Monte Huascarán. The mass of ice recorrio 16 km at the speed of 120 km per hour. They disappeared 4.000 inhabitants and they were erased of the map the towns of Ranrahirca, Shacsha, Huarascucho, Small Yanama, Armapampa and Uchucoto. In that opportunity the avalanche happened to two kilometers to the south of the old city of Yungay.

"31 of May of 1970: To 3: 23 p.m. a violent earthquake, shook Monte Huascarán, causing the loosening of gigantic ice cornices that fell initially in angle of 70 to 80 degrees towards lagoons glaciers causing a alluvium of 50 to 100 million of m3 of morrénica mass what Yungainos caused the death of 22.000, erasing of the map, the capital City of Yungay, their districts and districts such as Ongo, Aira, Armapampa, Shacsha, New Ranrahirca, Huarascucho, Chuquibamba, Caya, Utcush and Tullpa. All the avalanche I travel vertically through 16 km lowering between 3.000 to 4.100 mts with a speed average of 280 km per hour.

That terrible day, Scientific Ing. Mateo Casaverde accompanied by French geophysicist G. Patzelt and its wife was in Yungay, describing the catastrophe as she follows:

We directed of Yungay to Caraz, when to the height of the cemetery of Yungay beginning the earthquake. ... the vertical component of the seismic waves could be warned with much clarity, producing slightly cracks on the asphalt of the highway... We practically left our vehicle when the earthquake was finished. We listened to a LF noise, something different, although not very different, of the noise produced by an earthquake. The noise came from the direction of the Huascarán and we observed between Yungay and the snowed one, a giant dust cloud, almost color clay. The alluvium had taken place; part of the North Huascarán venia down. Hours were approximately the 15:24. In the vicinity where we were, I complete place that offered a relative security to us against the avalanche was the cemetery, constructed on an artificial hill, a pre-incaica huaca. We ran about 100 mts of highway before entering the cemetery, that also had undergone the effects of the earthquake. Already in this one, I hit upon to turn around the Vista to Yungay. Then; a gigantic gray mud wave could be observed clearly sure of about 60 meters of stop, that began to break itself in crest and with slight inclination and was going to strike the left flank of the city. This wave did not have dust. In our race on the perrons, we managed to reach the third terrace and we found the route to the third terrace, more obstructed, and with a man, a woman and three children treating to reach it. We turned aside ourselves to the right, on the third terrace, when a dry blow of whip, a portion of the avalanche I reach the cemetery in its frontal part, practically at level of the third terrace. Mud happened to about five meters of our feet. The sky by the great amount of dust was darkened, possibly originated of the destroyed houses of Yungay. We turned around the glance: Yungay with its several thousands of inhabitants was desappear.