#volcanos — Public Fediverse posts

## Volcanos III
### Divergent plate boundaries
Main article: Divergent boundary
Map showing the divergent plate boundaries (oceanic spreading ridges) and recent sub-aerial volcanoes (mostly at convergent boundaries)

At the mid-ocean ridges, two tectonic plates diverge from one another as hot mantle rock creeps upwards beneath the thinned oceanic crust. The decrease of pressure in the rising mantle rock leads to adiabatic expansion and the partial melting of the rock, causing volcanism and creating new oceanic crust. Most divergent plate boundaries are at the bottom of the oceans, and so most volcanic activity on Earth is submarine, forming new seafloor. Black smokers (also known as deep sea vents) are evidence of this kind of volcanic activity. Where the mid-oceanic ridge is above sea level, volcanic islands are formed, such as Iceland.[16][3]

source:

https://en.wikipedia.org/wiki/Volcano

#Volcanos #Geology #Terra #Chemistry #Physics #QuantumPhysics #Mathematics #ExoGeology

>Etymology and terminology

The word volcano (UK: /vɒlˈkeɪnəʊ/; US: /vɑːlˈkeɪnoʊ/) originates from the early 17th century, derived from the Italian name Vulcano, a volcanic island in the Aeolian Islands of Italy, which in turn comes from the Latin name Volcānus or Vulcānus, referring to Vulcan, the god of fire in Roman mythology.[12][13]

The set of processes and phenomena involved in volcanic activity is called volcanism [early 19th century: from volcano + -ism]. The study of volcanism and volcanoes is called volcanology [mid-19th century: from volcano + -logy], sometimes spelled vulcanology.[12]

source:

https://en.wikipedia.org/wiki/Volcano

#Volcanos #Geology #Terra #Chemistry #Physics #QuantumPhysics #Mathematics #ExoGeology

Volcanos

> A volcano is a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.[1]

On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and because most of Earth's plate boundaries are underwater, most volcanoes are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes resulting from divergent tectonic activity are usually non-explosive whereas those resulting from convergent tectonic activity cause violent eruptions.[2][3] Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift, the Wells Gray-Clearwater volcanic field, and the Rio Grande rift in North America

source:

https://en.wikipedia.org/wiki/Volcano

#Volcanos #Geology #Terra #Chemistry #Physics #QuantumPhysics #Mathematics #ExoGeology

Sainte-Rose, #Reunion
Lava from the Piton de la Fournaise volcano reaches the ocean.

Photograph: Richard Bouhet/AFP/Getty Images

#photography
#volcanos
#lava

Any volcano fans in the house? Here’s a brand new @surffeeds with feeds and information from various sources I curated #volcanos #volcanology #lava #surf #surffeed #flipbard https://surf.social/feed/surf%2Fcustom%2F01jhxpzesmw8kzsrc5d7cgfv1s

So, back on the birdsite, I maintained a public list titled #GlobalAlerts. One of my favorite accounts from the birdsite, @ai6yr, graciously hosts and maintains a number of alert-bots here on Mastodon. If you miss having #NWS and #EmergencyAlerts, please consider creating your own list with these accounts... Suggestions welcome!

@ai6yr
The account of AI6YR Ben, on his own server. Also at @ai6yr (ham radio). Yes, I'm the guy who found that hiker using only the selfie of his feet. If you want to support this server, https://patreon.com/ai6yr

@easwatch
#EAS warning bot *EXPERIMENTAL* Do not use for official advice.

@watchduty_bot
This is an automated bot which toots out new #wildfires reported by WatchDuty (app.watchduty.org). Not run by WatchDuty. Created by @ai6yr

@trueinfections
With the onset of the Global Village, there's no need for trek or safari to hunt for #viruses, #bacteria and other new #pathogens. Just wait. They'll be right at your door.

@disasters
A dedicated service that provides near-realtime updates on #NaturalHazards worldwide. Using data feeds from the United Nations and European Commission, I offer timely notifications within a 5-minute interval concerning #earthquakes, #tsunamis, #volcanos, #floods, and #wildfires. 🚨 Follow me for near-realtime alerts.

@CopernicusEU
Unofficial automated mirror. No copyright asserted. ∎ The #EarthObservation component of the EU Space Programme

@zoom_earth
Interactive #weather map and #hurricane tracker. Real-time satellite imagery, radar, and forecast maps.

@droughtcenter
We're the National #Drought Mitigation Center at the University of Nebraska-Lincoln. Our mission is to reduce the effects of drought on people, the environment and the economy with cutting-edge science and thoughtful planning. We host the U.S. Drought Monitor, the nation's leading resource to track drought conditions. #drought #DroughtMonitor #climate #science #data #maps #planning

@solarflarealert
Automated postings based on GOES X-ray flux for at least M-class #SolarFlares.

@g7izu
#SolarStorms, aurora and radio propagation mostly for around the UK and Europe. Alerts are informational only and are not official. I post about various other subjects as well, but always hope to be informative and interesting. I am *NOT* a professional space weather forecaster, but it is my hobby.

@nws_ntwc_bot
This automated bot toots out: NWS NTWC(direct), and #NWS PTWC bulletins (direct) (UNOFFICIAL). ***EXPERIMENTAL - Don't bet your life on it*** Created by @ai6yr

@usgsvolcanoes_bot
This is a bot account which toots the content that shows up on the USGS #Volcanoes Twitter account. NOT OFFICIAL. Experimental, too. Created by @ai6yr

@fdarecall_bot
This bot toots out #FDARecalls that are posted by the #FDA. NOT OFFICIAL. Created by @ai6yr

@bigquakes_bot
This automated account toots out whenever there is a notable #earthquake around the world, in real time. Data via the USGS. Created by @ai6yr

@eqnz
(Unofficial) #geonet earthquake feed. Posts #earthquakes felt in #NewZealand at at least an intensity of III (weak)

@emsc
#EMSC provides rapid earthquake information. This account displays all recorded #worldwide earthquakes.

@quakes
This bot posts all earthquakes greater than 2.5 in near real time as they are posted by the USGS. This bot was created by @bbaugh

@westquake
Toots for quakes M2 or above. Source: California and Nevada quake list http://scedc.caltech.edu/recent/Quakes/quakes0.html By @tsturm

If there's something of interest going on with regard to the planet, or the skies, @ikluft will be on the case. Every time I hear about volcanic stuff or astronomy news I know he'll have the goods waiting for me in my timeline.

Y'all should follow Ian.

#Geology #Space #volcanos #OhMy!

Iceland Volcano Update: Crater Collapse Could Change Lava’s Direction https://www.byteseu.com/531107/ #AirQuality #Crater #Eruption #Eruptions #Geology #Geophysics #Geoscience #Grindavik #Iceland #IcelandVolcano #Lava #ReykjanesPeninsula #SulfurDioxide #VolcanicEruption #VolcanicEruptions #volcano #Volcanoes #Volcanology #volcanos

Sajama by SlowPathsImages

https://tmblr.co/Z7VXvxgNFcq_ei00

#bolivia #sajama #sajamanationalpark #southamerica #americalatina #altiplano #andesmountains #volcano #landscape #highaltitude #4000mabovesealevel #lamas #alpagas #vastness #travel #remotelocation #parquenacionalsajama #peaceandquiet #cutoff #twinpeaks #volcanos #parinacotaandpomerapemountains #payachatas #stream #parinacota6342m #pomerape6200m #flickr #thingsdavidlikes

This week's Featured Links post has links to articles about how the summer COVID surges in the US and Canada say about our long-term future with the disease, a near disaster on a Shuttle mission in 1999, and a new study that disputes Hunga Tonga volcano's role in 2023–24 global warm-up.

https://coredump3.blogspot.com/2024/07/featured-links-july-29-2024.html

#Books, #OctaviaButler, #COVID19, #History, #Science, #SFF, #Space, #Volcanos #HungaTonga #ClimateChange

@MichaelEMann

(4/n)

...time to time.

The first one is that we are entering an #ElNiño period.
#Historically, 👉El Niño events have been the primary trigger for global #temperatures records👈 being broken. "

The second natural booster one is massive #eruptions of #underwater #volcanos:

The "#Tongan volcanic eruption [is] causing #temperatures to rise.
In January 2022, the #Hunga Tonga-Hunga Ha’apai #volcano..."

#Dogwalking miscellany

Glasshouse Mountains, from Mountain View Road. (wide panorama)

The Glasshouse Mountains (in the distance) are the cores of extinct volcanos, so some very long time ago this area must have been a good deal less green and pleasant than it is now.

#photography #landscape #nature #GlasshouseMountains #volcanos #panorama #iphoneography #iphone3GS

An #introduction:

Hi, I’m Tina. She/her. My dog’s name is Stella, yes it’s wonderful for dramatic declaiming. I’m currently obsessed with volcanos (hi Tahoma), grey skies, and vintage everything.

#AllTheHashtags: #GenXForever #queer #neurodivergent #adhd #actuallyautistic #cranky #dogs #plants #foodie #puerh #mocktails #perfume #volcanos #mcm #romancelandia #sff #StarTrek #knitting #puzzles #wawx #lawyer #CivilRights #EEO #seattle #dc #philly #TransRights #AbortionIsHealthcare