Ubinas is a stratovolcano in the Moquegua Region of southern Peru, 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. Its summit is cut by a caldera 1.4 kilometres (0.87 mi) wide and 150 metres (490 ft) deep, which itself contains a smaller crater. Below the summit, Ubinas is a steep cone with a prominent notch on the southern side. The most active volcano in Peru, it has a history of small- to moderate-sized explosive eruptions and persistent degassing and ash emissions. An eruption in 1667, its largest since prehistoric times, produced scoria falls and pyroclastic flows. In 2006 and 2007 eruption columns led to ash fall in the region, resulting in health issues and evacuations. During the most recent activity, from 2013 to 2019, a lava flow formed inside the crater, and as ash fell, surrounding towns had to be evacuated.
Read more: https://en.wikipedia.org/wiki/Ubinas
_______________________________ Today's selected anniversaries:
1873:
A Dutch military expedition was launched to bombard Banda Aceh, the capital of the Aceh Sultanate in present-day Indonesia, beginning the Aceh War. https://en.wikipedia.org/wiki/Aceh_War
1953:
Jonas Salk announced the successful test of his polio vaccine on a small group of adults and children (vaccination pictured). https://en.wikipedia.org/wiki/Polio_vaccine
1979:
With the signing of a peace treaty in Washington, D.C., Egypt became the first Arab country officially to recognize Israel. https://en.wikipedia.org/wiki/Egypt%E2%80%93Israel_Peace_Treaty
2010:
An explosion, allegedly caused by a North Korean torpedo, sank the South Korean warship ROKS Cheonan near Baengnyeongdo in the Yellow Sea, killing 46 sailors. https://en.wikipedia.org/wiki/ROKS_Cheonan
_____________________________ Wiktionary's word of the day:
felicitous: 1. Characterized by felicity. 2. Appropriate, apt, fitting. 3. Auspicious, fortunate, lucky. 4. Causing happiness or pleasure. 5. (linguistics) Of a sentence or utterance: semantically and pragmatically coherent; fitting in the context. https://en.wiktionary.org/wiki/felicitous
___________________________ Wikiquote quote of the day:
We are going to die, and that makes us the lucky ones. Most people are never going to die because they are never going to be born. The potential people who could have been here in my place but who will in fact never see the light of day outnumber the sand grains of Arabia. Certainly those unborn ghosts include greater poets than Keats, scientists greater than Newton. We know this because the set of possible people allowed by our DNA so massively outnumbers the set of actual people. In the teeth of these stupefying odds it is you and I, in our ordinariness, that are here. … what I see as I write is that I am lucky to be alive and so are you. --Richard Dawkins https://en.wikiquote.org/wiki/Richard_Dawkins