“At times, the path is well-marked, but it crosses and intersects with many more that lead nowhere…” 2007 (© Jorge Alonso, via viajeros4x4.com). Approaching Volcán Lastarria from the NW.
GVP said in 2007: “The rarely visited Lastarria has not erupted in historical time, but has displayed strong fumarolic activity for at least 67 years. This is the first Bulletin report ever issued on this volcano; it presents new images of the steaming edifice…”
Not that the volcano wasn’t known as such – persistent fumarolic activity has been reported from the northwestern flanks since the earliest records were made. However, even the most recent eruptions appear to have predated the Spanish colonists: no records of large or small eruptions have ever been found. Yet, in 1900, Dr. L. Darapsky said “Lastarria volcano… is the only one in the district which shows signs of volcanic activity, Continue Reading
Nisyros: Caldera view from above Nikia village.
So far, when I wrote about volcanoes around the world, I could only dream of ever visiting them. Researching for my first Nisyros post, though, it occurred to me that the idea of a short holiday there was not entirely out-of-bounds. It didn’t take long and I had convinced daughter & granddaughter to come with me. We travelled to Nisyros in October, and, what can I say – it was a wonderful, if too short a holiday! Here are some impressions, thoughts and photos from our visit. Continue Reading
Smith volcano, Babuyan Claro Island (© Garrison et al., 2018)
“The 1831 eruption of Babuyan Claro in the Philippines is regarded as one of the most significant volcanic climate forcing events of the nineteenth century, particularly so when treated as a double eruption with the 1835 (VEI 5) eruption of Cosegüina, producing ‘enhanced’ forcing effects over a decadal time frame.”
Follows the course of much detective work and its conclusion:
“We therefore suggest that the 1831 eruption of Babuyan Claro is a false event and that one or more alternative eruptions will have to be identified as the source of the 1831 stratospheric sulphate aerosol.” Continue Reading
Lonquimay volcano behind the Christmas crater, or Cráter Navidad. Photo taken towards the SW. (© Andeshandbook, Alvaro Vivanco)
Although not for the faint-hearted and wobbly legged, Lonquimay’s summit is a favorite destination with climbers. The reward for their pains is a stunning view all around: In clear weather, up to 14 volcanoes can be seen within a radius of 250 km: Continue Reading
Bathymetry of the southern Tyrrhenian Sea. The inset shows a schematic representation of the tectonics affecting southern Italy. (from: M. Ligi et al., 2014)
On and off during recent years I caught some headlines about submarine volcanoes in Italy but never got round to read those studies. Since I came across some really Doom-&-Gloom-The-End-Is-Nigh videos I decided to have a closer look at these. And I’ll give the answer beforehand: Yes there is a real risk. And, yes, there is an awful amount of fearmongering. Continue Reading
From front: Santa Ana volcano, Cerro Verde, Izalco in the Santa Ana volcanic complex. (© salvadoreantours.com)
Looking for the right volcano name to use in my post I found only great confusion, even in official sources. Volcán de Santa Ana is the official name given in Spanish, there’s no doubt. However, in articles across the web you can also find it variously called Ilamatepec, Llamatepec or Lamatepec. Faggioli (2013) notes that all those have no base in the native Náhuat language. The initial “I” in Ilametepec is someone’s invention and plain wrong. It has been called Lamatepec in the work of a 19th century researcher, and this name has since become habitually in use locally. Continue Reading
Aerial view of São Jorge with the westernmost headland of Ponta dos Rosais in the foreground. (© José Luís Ávila Silveira/Pedro Noronha de Costa)
“After another seven days, a fire exploded in the vicinity of the parish of Santo Amaro, where it opened two mouths of fire, such as two great ravines of fluid material, and with such force that on the second day, we encountered more than a moio of fields of lava in the direction of the homes, forcing the people to flight; the vicar, Rev. Amaro Pereira de Lemos, lost his senses and his sister D. Anna Maria de Lemos went crazy.“
(Father João Ignácio da Silveira, May 1808) Continue Reading
GEarth view of Ciomadul volcano, looking South.
Back in the 1980s I have travelled this part of Romania extensively, we hiked and hitch-hiked through villages and landscapes in 4-week holidays for several years – but never did we know there was a volcano – and such an interesting one at that! The travel guide books didn’t mention volcanoes and the locals didn’t care for geology much. I guess this has changed now; a volcano in the neighborhood has always proved a recipe for visitor attraction! Continue Reading
View to the W in a helicopter overflight of Maly Semyachik, with an old eroded cone of another volcano of this caldera in the background. (Img. via Twitter by “@ГК РФ(🇷🇺)в Женеве” Oct. 16, 2017)
Kamchatka is one of the most remote parts of the world with difficult access to most of its volcanoes. And yet, there are detailed maps available, and many of the volcanoes are researched well. Have you ever wondered how on earth volcanologists figure out the volume of a crater lake or the size of Continue Reading