Central and South American Volcanos

[Astronuc]

That moment when you’re skiing on a volcano and it erupts
https://www.washingtonpost.com/news...when-youre-skiing-on-a-volcano-and-it-erupts/

Chillán volcano has been active since about May and has been increasingly active during July.

 

[davenn]

That moment when you’re skiing on a volcano and it erupts
https://www.washingtonpost.com/news...when-youre-skiing-on-a-volcano-and-it-erupts/

Chillán volcano has been active since about May and has been increasingly active during July.

WOW, reminds me of ski-ing on Mt Ruapehu in the central North Island of New Zealand. Another active volcano with ski fields on it

a Lahar down through the ski field

Dave

 

[1oldman2]

I've been expecting an eruption from "El Popo" lately, reports of ashing the neighborhood a few days back but it seems to have calmed down for the time being.

 

[Astronuc]

I've been expecting an eruption from "El Popo" lately, reports of ashing the neighborhood a few days back but it seems to have calmed down for the time being.

We didn't have to wait long!

UPI reports Popocatepetl erupted on Sunday, August 14. Apparently there were 4 eruptions in 24 hours.
https://www.yahoo.com/news/m/5b2ed453-4a9f-3758-bb13-c5c49d3f002c/mexico%26%2339%3Bs-popocat%C3%A9petl.html

In Spanish (CENPRED reports) = http://www.cenapred.gob.mx/reportesVolcan/BuscarReportesVolcan?optBusqueda=1

 

[1oldman2]

We didn't have to wait long!

A lot of activity there, is the swarm of low intensity earthquakes typical of this type of eruption ?
I was hoping for some good current webcam images however the clouds are hiding the mountain this morning.
https://webcams.volcanodiscovery.com/Popocatepetl
https://www.volcanodiscovery.com/po...volcano-Mexico-update-activity-unchanged.html

 

[Astronuc]

Guatemala's Santiaguito (adjacent to Santa Maria) volcano is erupting.
http://www.wired.com/2016/08/anatomy-volcanic-blast-guatemalas-santiaguito/
http://www.insivumeh.gob.gt/volcansantiaguito.html

http://volcano.si.edu/volcano.cfm?vn=342030

http://www.geo.mtu.edu/~raman/VSantiaguito/VSantiaguito/Welcome.html

https://en.wikipedia.org/wiki/Santa_María_(volcano)

The VEI 6 eruption of Santa María Volcano in 1902 was one of the three largest eruptions of the 20th century, after the 1912 Novarupta and 1991 Pinatubo eruptions.

 

[1oldman2]

150,000 people within 10 km, I see that one has a history of explosive eruptions, hope it doesn't do a repeat of the 1902 event. (this reminds me of a St. Helen's type mountain)
From the Smithsonian site.
Volcano types:
Stratovolcano
Lava dome Summit Elev: 3772 m
Latitude: 14.756°N
Longitude: 91.552°W
Symmetrical, forest-covered Santa María volcano is one of the most prominent of a chain of large stratovolcanoes that rises dramatically above the Pacific coastal plain of Guatemala. The 3772-m-high stratovolcano has a sharp-topped, conical profile that is cut on the SW flank by a large, 1.5-km-wide crater. The oval-shaped crater extends from just below the summit of Volcán Santa María to the lower flank and was formed during a catastrophic eruption in 1902. The renowned plinian eruption of 1902 that devastated much of SW Guatemala followed a long repose period after construction of the large basaltic-andesite stratovolcano. The massive dacitic Santiaguito lava-dome complex has been growing at the base of the 1902 crater since 1922. Compound dome growth at Santiaguito has occurred episodically from four westward-younging vents, the most recent of which is Caliente. Dome growth has been accompanied by almost continuous minor explosions, with periodic lava extrusion, larger explosions, pyroclastic flows, and lahars.