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Fumarole in Námaskarð, the area of Krafla, Iceland.
A fumarole (Latin 'fumus', smoke) is an opening in a planet's crust, often in the neighborhood of volcanoes, which emits steam and gases [carbon dioxide, sulfur dioxide, hydrochloric acid, and hydrogen sulfide]
The steam is created when superheated water turns to steam as its pressure drops when it emerges from the ground.
The name solfatara, from the Italian solfo, sulfur (via the Sicilian dialect), is given to fumaroles that emit sulfurous gases.
Exif:
ISO 100 ; f/18 (with 3-stop ND filter) ; 5 sec ; @18mm
Magic Cloth Technique
And you can see that it was quite windy :)
No geysers, just blue mineral pools, gray mineral streams, fumaroles, mudpots, and ground that's 70% sulfur.
Lassen Volcanic National Park, August, 2026.
The Poás Volcano is one of the more active in Costa Rica, with occasional eruptions. When I visited it was just "simmering", with the occasional fumarole, a mix of steam and gas that looked like a cloud, but wasn't one... you could tell by the smell!
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Two fumaroles venting steam and hot gasses in the Námafjall Hverir Geothermal Area in northeast Iceland. Situated on the east side of Lake Mývatn about 88km from Akureyri (the capital of the north).
The magical world of Hverir, a lunar-like landscape of mud cauldrons, steaming vents, radiant mineral deposits and piping fumaroles.
Aden Crater Lava Flow Wilderness
Potrillo Volcanic Field
Organ Mountains-Desert Peaks National Monument
New Mexico
Photo by Charlotte Blanchet – Lotus Blanc
The North island is still very volcanic with the occasional outburst from some of the more active ones. This area south of Rotorua has Geysers, fumaroles, hot springs and all the colours that come with them.
We had a boat ride across a lake to get here, with a very early start we were the only ones here for a while.
I guess Iceland would look like this if it had trees, but a lack of trees has it's advantages when it comes to views.
Trees are always in the way.
a ovest del vulcano Krafla, si estende Leirhnjùkur un affascinante campo di lava testimonianza delle eruzioni del XVIII secolo e del periodo tra il 1977 e 1984.
La massa di detriti lavici ancora fumante e il terreno caldo,testimoniano la presenza dell'energia nella roccia fusa sottostante.
The Poás Volcano, is an active stratovolcano (conical volcano) in central Costa Rica. It has erupted 39 times since 1828 (last eruption 2011). On January 25, 1910, the volcano spewed out 640,000 tons of ash, and in the period of 1952-1954, it bombarded nearby areas with ash and rocks. Since then, the Poás has maintained a low profile, but as recently as 1989, the park was closed because of dangerous sulphurous gas emissions. Its geyser-like eruptions of muddy water and steam, have given it the reputation as the world’s largest geyser.
There are two crater lakes near the summit. The northern lake is known as the Laguna Caliente ("hot lagoon") and is located at a height of 2,300 m (7,545 ft) in a crater approximately 1.7 km wide and 290–300 m deep. It is one of the world's most acidic lakes. The acidity varies after rain and changes in volcanic activity, sometimes reaching a pH of almost 0; consequently, it supports little or no aquatic life. The bottom of this lake is covered with a layer of liquid sulphur. Acid gases create acid rain and acid fog, causing damage to surrounding ecosystems and often irritation of eyes and lungs.
Panoramic view from the top of Vulcano, Aeolian islands, Sicily.
It was hard to climb up to the top of the crater at 4 pm...., but the view was really spectacular. Have a nice weekend
Many thanks for your comments :)
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Wyoming, UA - June 28, 2021: Bison walks across a tourist boardwalk path in the mud volcano area of Yellowstone National Park, as tourists take photos
At the foot of the volcanic mountain Námafjall, in the Hverir geothermal area, winter scenery belies Iceland's fiery heart. In the midst of the snow, fumaroles emit clouds of sulfurous gases and gaping mud pots squirt boiling mud. Due to heat from underground magma and hot rocks at shallow depth, steam and gases literally scream their way from openings in the earth’s crust. It was still freezing cold though, even in close vicinity of a steaming vent.
Photo by Charlotte Blanchet – Lotus Blanc
Bumpass Hell
Lassen Volcanic National Park is a United States National Park in northeastern California. The dominant feature of the park is Lassen Peak, the largest plug dome volcano in the world and the southern-most volcano in the Cascade Range. Lassen Volcanic National Park started as two separate national monuments designated by President Theodore Roosevelt in 1907: Cinder Cone National Monument and Lassen Peak National Monument.
The source of heat for volcanism in the Lassen area is subduction off the Northern California coast of the Gorda Plate diving below the North American Plate. The area surrounding Lassen Peak is still active with boiling mud pots, stinking fumaroles, and churning hot springs. Lassen Volcanic National Park is one of the few areas in the world where all four types of volcano can be found (plug dome, shield, cinder cone, and strato).
The park is accessible via State Routes SR 89 and SR 44. SR 89 passes north-south through the park, beginning at SR 36 to the south and ending at SR 44 to the north. SR 89 passes immediately adjacent the base of Lassen Peak.
There are five vehicle entrances to the park: the north and south entrances on SR 89; and, unpaved roads entering at Drakesbad and Juniper Lake in the south, and at Butte Lake in the northeast. The park can also be accessed by trails leading in from Caribou Wilderness to the east, as well as the Pacific Crest Trail, and two smaller trails leading in from Willow Lake and Little Willow Lake to the south.
The Lassen Chalet, a large lodge with concession facilities, was located near the southwest entrance, but was demolished in 2005. A new full-service visitor center in the same location opened to the public in 2008. The Lassen Ski Area was located near the lodge; it ceased operation in 1992 and all infrastructure has been removed.
Near Little Hot Springs Valley is Bumpass Hell, which is a hydrothermally altered geothermal area that spans 16 acres (65,000 m²) and has hot springs, fumaroles, and boiling mud pots. Never part of Mount Tehama's main vent, Bumpass Hell is the result of fissures that tap the volcanic heat (which is thought to be a cooling mass of andesite, perhaps three miles (5 km) below the surface)
It is named after Kendall Vanhook Bumpass, a miner who worked in the Lassen area in the 1860s. K.V. Bumpass discovered the area and was named on a mining claim for the area. In 1865 the editor of the Red Bluff Independent newspaper took a trip with Bumpass to see the locale. During this trip K.V. Bumpass broke though a thin crust above a boiling mud pot, his leg was badly scalded and eventually had to be amputated. The area was named in his honor.
(Wikipedia)
Der Lassen-Volcanic-Nationalpark liegt im Norden Kaliforniens (USA). Der Park liegt rund um den Lassen Peak, dem südlichsten Vulkan des Kaskadengebirges. Das 429 km² große Gebiet um den Lassen Peak wurde 1916 zum Nationalpark erklärt.
In der Gegend rund um den Lassen ist die Erde immer noch vulkanisch aktiv, was sich in kochenden Schlammlöchern, heißen Quellen und Fumarolen zeigt. Lassen ist eines der wenigen Gebiete weltweit, in der alle vier Hauptformen von Vulkanen vorkommen.
Die Indianer erzählten in ihren Legenden, dass der Berg voller Feuer und Wasser sei und er sich eines Tages selbst zerreißen werde. Zwischen 1850 und 1851 sichteten Beobachter an dem Berg Rauch und Asche.
Die Gegend um den Lassen Peak wurde 1907 von Präsident Theodore Roosevelt zum National Monument erklärt.
Zwischen 1914 und 1921 ereigneten sich eine Reihe kleinerer Ausbrüche. Diese schufen neue Krater und Lavaflüsse. In dieser Zeit, am 6. August 1916, wurde der Nationalpark geschaffen.
1974 wurde das Besucherzentrum in Manzanita Lake geschlossen. Erkundungen hatten ergeben, dass die Gefahr bestand, dass bei einem Erdbeben Erdrutsche vorkommen können.
Die Vulkane im Park gehören zu einer geologischen Formation, die ihre Hitze aus einer Magmablase jenseits der kalifornischen Küste bezieht. Lassen ist einer der größten Lavadome der Welt. Er steht auf den Überresten von Mount Tehama, einem Stratovulkan, der noch 300 Meter höher als der heutige Lassen war. Dieser Stratovulkan maß an seinem Fuß einen Durchmesser von 18 bis 24 Kilometern. Nachdem seine Magmakammer entleert war, kollabierte dieser Vulkan und schuf eine 3 Kilometer große Caldera.
Die Überbleibsel dieses alten Vulkans Mount Tehama sind der Brokeoff Mountain, Mount Conrad, Mount Diller und der Pilot Pinnacle.
Sulphur Works ist eine Gegend mit geothermaler Aktivität. Es wird angenommen, dass hier der Gipfel des ehemaligen Tehama-Vulkans war. Weitere geothermale Gebiete befinden sich in Little Hot Springs Valley, Diamond Point und Bumpass Hell.
Cinder Cone liegt etwa 15 Kilometer nordöstlich des Lassen. Dieser Vulkan ist wahrscheinlich durch zwei Eruptionen um 1650 entstanden. Im Park gibt es vier Schildvulkane: Mount Harkness (im Südwesten des Parks), Red Mountain (an der Südgrenze), Prospect Pead (im Nordwesten) und Raker Peak (nördlich des Lassen Peak). Alle diese Vulkane sind 2100–2500 Meter hoch.
Während der Eiszeit wurden die älteren Vulkane des Parks durch Erosion angegriffen. Die Vergletscherung konzentrierte sich auf Lassen Peak, Red Mountain und Raker Peak.
(Wikipedia)
The Yellowstone River cascaded through the Grand Canyon of the Yellowstone in this pre-dawn shot while a fumarole at the water's edge made its own steamy contribution.
Early morning over the biggest fumarole near the campsite, before crowds of people arrive and flying becomes unsafe.
You can see the many colours of the rocks, as well as the different greens of mosses and grass.
This 360° High Dynamic Range panoramic image was stitched from 45 bracketed photographs with PTGUI Pro, tone-mapped with Photomatix, processed with Color Efex, and touched up in Affinity Photo and Aperture.
Location: Landmannalaugar, Iceland
On May 24th, while descending from the summit, 59-year-old Michael Adams lost his footing and fell 800 feet, eventually coming to rest inside a volcanic vent known as a fumarole. He survived the fall, but was badly injured. Pictured here are four members of a mountain rescue team, who happened to be training on the mountain that day, and were thus able to reach Adams within two hours. Adams himself is not visible in the picture, as he is at this point still trapped in the fumarole, the entrance to which is the "slit" just beneath the rescuers. After the team managed to extract Adams, he was airlifted by helicopter to an area hospital. He suffered multiple fractures, as well as internal injuries, but is expected to survive.
The highlands of Landmannalaugar Nature Reserve are a superb example of mind-blowing landscapes notable for its spectacular rock formations and multicolored rhyolite mountains.
Day 1 of the Laugavegur and Fimmvörðuháls trek. We started from Landmannalaugar, hiked through the Laugahraun lava field, Vondugil canyon and the incredibly colourful rhyolite mountains, most notably Mt. Brennisteinsalda.
From sizzling hot springs and volcanoes, icy white glaciers to geothermally active lands of colored rhyolite mountains and obsidian fields, the Laugavegur and Fimmvörðuháls trek is considered one of the world's best hikes due to the unique and extremely diverse landscape encountered on the trail.
Yellowstone National Park’s thermals are geysers, hot springs, fumaroles, and mudpots. Geysers are hot springs that erupt periodically, and the eruptions are a result of super-heated water below-ground. When the pressure builds to such a point it can no longer hold back, the pressure is released causing eruptions making for beautiful Displays for all to enjoy.
But be careful to stay on the wooden trails provided by the park, because a couple of miles or so under ground exists a volcano and the ground gets so hot it can actually melt the souls off your shoes. I found out the hard way, read the signs and stay on the trails. :^ P
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The Fountain Paint Pot area in Yellowstone has several springs, pools, geysers, a fumarole, and the Fountain Paint Pot. Yellowstone National Park.
This trail is an easy 0.5 mile (0.8 km) loop boardwalk. You will see various hydrothermal features that are expressions of Yellowstone's volcanism. No two features are exactly alike, yet they can be grouped into those with a lot of water (hot springs and geysers) and those with limited water (mud pots and fumaroles).