Ubinas

Ubinas
Uvillas or Uvinas
Ubinas in August 2015
Highest point
Elevation5,672 m (18,609 ft)[1][2]
ListingVolcanoes of Peru
Coordinates16°20′55″S 70°54′08″W / 16.34861°S 70.90222°W / -16.34861; -70.90222[3]
Naming
English translationQuechua: "to stuff", "to fill", "to grow", "to increase"; Aymara: "to weep", "to murmur"
Language of nameQuechua or Aymara
Geography
Ubinas is located in Peru
Ubinas
Ubinas
Location in Peru
CountryPeru
RegionMoquegua
ProvinceGeneral Sánchez Cerro
DistrictUbinas
Parent rangePeruvian Western Cordillera, Andes
Geology
Rock agePleistocene-recent
Mountain typeAndesitic-dacitic stratovolcano
Volcanic beltCentral Volcanic Zone
Last eruptionJune 2023[4]
Climbing
First ascentUnknown

Ubinas is an active stratovolcano in the Moquegua Region of southern Peru, approximately 60 kilometres (37 mi) east of the city of Arequipa. Part of the Central Volcanic Zone of the Andes, it rises 5,672 metres (18,609 ft) above sea level. The volcano's summit is cut by a 1.4-kilometre-wide (0.87 mi) and 150-metre-deep (490 ft) caldera, which itself contains a smaller crater. Below the summit, Ubinas has the shape of an upwards-steepening cone with a prominent notch on the southern side. The gently sloping lower part of the volcano is also known as Ubinas I and the steeper upper part as Ubinas II; they represent different stages in the volcano's geological history.

The most active volcano in Peru, Ubinas has a history of small to moderate explosive eruptions as well as a few larger eruptions, such as in 1667, along with persistent degassing and ash emissions. Activity at the volcano began in the Pleistocene epoch, and led to the growth of the current mountain in two phases. Among the recent eruptions was the 2006–2007 event, which produced eruption columns and led to ash fall in the region, resulting in health issues and evacuations. During the most recent activity, from 2013 to 2017, a lava flow formed inside the crater, and further ash falls led to renewed evacuations of surrounding towns. Ubinas is monitored by the Peruvian geological service INGEMMET, which has published a volcano hazard map for Ubinas and regular volcanic activity reports.

  1. ^ Cite error: The named reference GVP was invoked but never defined (see the help page).
  2. ^ Thouret et al. 2005, p. 558.
  3. ^ "Volcán Ubinas, Peru". Peakbagger.com. Retrieved 26 March 2020.
  4. ^ Cite error: The named reference GVP2023 was invoked but never defined (see the help page).