Active Terran Volcanoes - Formerly "Mount St. Helens"

Palomar · 2005-05-26 10:47:57

http://www.livescience.com/animalworld/ … y.html]New undersea volcano

It's named "Nafanua" and is located near the Samoan Islands. It's currently 1,000 feet above the sea floor and is rising aprox 8 inches every day. Wow.

There's a "fog of gunk" around Nafanua, which reduces visibility to 10 feet. Scientists sent down a "submersible" which found -- to their astonishment and delight -- a unique biological community.

Thousands of eels, abundant microbes, etc.

Poses problems, too:

Within decades, continued growth of Nafanua could bring the summit close enough to the sea surface that it could be hazardous to ships. Explosive reactions between red-hot lava and seawater, or tsunamis that may be caused by the collapse of the newly built volcano, could threaten nearby coastal communities.

--Cindy

Palomar · 2005-06-01 05:45:58

*Eruption! Monday, May 23:
Science Notes
Compiled by the editors of LiveScience.
Mexican Volcano Erupts
MEXICO CITY (AP) -- A volcano in western Mexico unleased its most powerful eruption in more than a decade Monday, shooting ash two miles into the sky and sending burning gas and rock fragments down the slopes. No injuries or damages were reported -- the nearest settlement is about four miles away. Winds blew the ash cloud toward the west, away from the most heavily populated areas.
Tonatiuh Dominguez, a seismologist at the volcano observation station operated by the University of Colima, warned that the peak "`is still in an explosive stage.'' Experts said it was the biggest explosion at the volcano in the western state of Colima since 1991. The Colima volcano, which has erupted violently dozens of times since its first recorded eruption in 1560, is considered to be among the most active and potentially the most destructive of the volcanoes in Mexico. The eruption at the 12,533-foot volcano, 430 miles northwest of Mexico City, was considered larger than one in 1999 but smaller than a 1913 blast that created a crater 1,650 feet deep and rained ash on Guadalajara, 75 miles to the north. -- Associated Press
Article appeared in updated column format; had to copy and paste.
http://www.livescience.com/othernews/sc … ml]Appears at this web site. Includes "Volcano Image Gallery"
--Cindy

*Here's a http://www.livescience.com/imageoftheda … html]photo of the Colima Volcano eruption: May 30

::EDIT:: Yep, is yet another eruption. Caption makes reference to the eruption "earlier in the month" (May 23). So that makes for May 23 and May 30. Nice pic.

--Cindy

Palomar · 2005-06-04 05:06:01

http://www.spaceref.com/news/viewsr.htm … 6850]Bromo Volcano

*Spectacular photo courtesy ESA's "Proba" (a micro-satellite).

Still active and a tourist attraction. Even during normally active conditions it spews out gases that include "mofet" gas, which is a mix of carbon dioxide and monoxide. And people (tourists) are known to cross the caldera on horseback. :-\

It's Java's most active volcano. Has erupted 50 times since 1775. Most recent eruption was June 2004.

There is yet another volcano in the photo: The reddish-brown "ribbed" cone, which is called "Batok." The Batok volcano is no longer active. It's an odd site, though -- situated as it is.

The folks who take the horseback excursion across that caldera sure have interesting sites to see.

--Cindy

Palomar · 2005-06-08 14:31:12

http://news.yahoo.com/s/ap/20050608/ap_ … olcano]Yet another eruption of Colima in Mexico

*Sixth eruption in 3 weeks; strongest in 20 years. Aprox 300,000 people live near the volcano; reports of the ground shaking and hearing the roar. People reluctant, though, to leave their homes for fear the gov't won't let them return/vandalism while gone.

Mexican gov't issuing surgical masks.

--Cindy

Palomar · 2005-06-15 09:44:43

http://www.livescience.com/forcesofnatu … ml]Volcano roots run deep

*Discusses the natural narrow "pipes" which connect Earth's crust to its molten core.

--Cindy

Palomar · 2005-07-03 07:43:47

http://news.yahoo.com/news?tmpl=story&u … n]Volcanic eruption and vapor column near Iwo Jima

*This just in from Yahoo! news. Involves a 3,300 ft column of steam aprox 30 miles SE of Iwo Jima. Helicopter pass revealed red waters and grayish mud rising up from ocean floor. Not yet determined if volcanic -gases- are being released.

Fukutokuoka-no-ba is its name. Most recent eruption was in 1986, lasting for 3 days.

International ships have been warned to avoid the area. The area will be surveyed again tomorrow, for continued monitoring.

--Cindy

Palomar · 2005-07-03 12:56:24

*It goes in 3's. Just posted the above earlier today, now two additional items (unrelated to the above):

http://news.yahoo.com/s/ap/20050703/ap_ … elens]Lava dome falls into Mt. St. Helens

A large part of the growing lava dome on Mount St. Helens fell Saturday, sending an ash plume above the crater rim, the U.S. Geological Survey reported. A rock fall had caused what scientists called a "substantial seismic signal" and knocked the chunk off the lava dome. The volcano was relatively quiet for the rest of the day.

Says another eruption could happen at any time and could be explosive enough to dump ash within a 10-mile radius. Wispy smoke has been constantly flowing from the crater since March 8.

-*-

http://www.space.com/imageoftheday/imag … ml]Volcano island ecosystem

This island -- Anak Krakatau, in the Indian Ocean -- arose from the ocean aprox 80 years ago. Growth and spread of flora, etc. Very brief history of the region (disappearance of a previous island) also given. Photo obtained 11 June 2005 from a satellite.

--Cindy

Palomar · 2005-07-16 05:53:56

http://www.livescience.com/050715_mount … Earthquake shakes Mt. St. Helens

*Yesterday (Friday) a.m. Magnitude 3.0. Most people didn't feel it, but the seismographs picked it up instantly. Caused a rockfall within Mt. St. Helens and an ash plume rose above the volcano's rim. The lava dome within the volcano also continues to grow.

Mentions that sometimes earthquakes preceed an eruption. Scientists have no firm predictions in this regard, however.

--Cindy

Palomar · 2005-07-22 07:54:15

http://news.yahoo.com/s/ap/20050722/ap_ … elens]More quakes around Mt. St. Helens

*Continued rockfalls and ash plumes, although not all of the plumes escape from the crater. Other plumes extend thousands of feet high.

Has experienced a series of "unusually strong" quakes, each exceeding magnitude 3. Yesterday experienced a 3.1 mag quake.

Lately, extruding rock has been piling up on the west side of the crater.

"This is much narrower, like a spine ... like a long linear ridge," Major said. "It's almost like a large tooth ... getting steeper and steeper."

Says Mt. St. Helens is the most restless and youngest volcano in the Cascade Range.

--Cindy

Palomar · 2005-08-18 12:06:54

Nyiragongo Volcano

*Is in the Democratic Republic of Congo. An especially dangerous volcano to folks in the surrounding area. The city of Goma is nearby and has only a 13% chance of surviving the next eruption. In January 2002 an eruption wiped out nearly 80% of all buildings in Goma. Another eruption is predicted within 2 years.

The 3,465-metre (11,365 foot) volcano has a two-kilometre wide crater with an active lava lake in the centre. With nearby Nyamuragira, it is responsible for about 40 percent of all volcanic activity in the continent.

It also has swiftly-flowing lava, which can travel as fast as 60 mph.

Calls are being made for the city of Goma to be relocated.

--Cindy

Palomar · 2005-09-06 10:10:05

Mystery Bulge in Oregon Growing

*Yipes. They estimate it began growing in 1997 and is rising at a rate of 1.4 inches per year. Covers 100 square miles, near South Sister.

The likely cause of the bulge is a pool of magma that...is equal in size to a lake 1 mile across and 65 feet deep.
The magma lake is rising 10 feet each year, under tremendous pressure, and it deforms the Earth's surface as it expands, causing the bulge.
Other causes could be anything from the birth of a new volcano -- a fourth Sister in the making -- to a routine and anticlimactic pooling of liquid rock, researchers say. "The honest and shortest answer is, we don't know''

--Cindy

SpaceNut · 2005-09-06 11:02:24

Yikes is right for the size and area of change. Roughly a foot since noticing it.
Probably scienmic ativity has not changed in that area since it is such a slow growth.

Palomar · 2005-10-03 07:28:42

Magma bubbles from Mt. Etna

*Spectacular photo. Is from an eruption in June 2001. Magma bubbles, some of which measured aprox 1 meter in diameter, were expelled during. Mt. Etna is one of Earth's largest volcanoes; its base extends over 50 km and it is nearly 3 km tall.

It's also a basalt volcano and especially of interest due to speculation it is similar to Mars volcanoes:

One reason planetary geologists study Earth's Mt. Etna is because of its likely similarity to volcanoes on Mars. Mt. Etna, a basalt volcano, is composed of material similar to Mars, and produces similar lava channels.

--Cindy

SpaceNut · 2005-10-04 12:50:46

Thousands Evacuated As El Salvador Volcano Erupts; Two Dead

El Salvador's largest volcano, dormant for more than a century, shook the ground as it woke up Saturday, hurling out hot rocks, killing at least two and forcing more than 2,000 to flee.
The Santa Ana or Ilamatepec volcano, located 66 kilometers (41 miles) west of the capital, rumbled and belched thick plumes of ash that reached more than 15 kilometers (nine miles) into the sky Saturday morning.

50,000 nomads Displaced By Ethiopian Volcano Eruption

Mount Arteale, about 1,000 kilometres (620 miles) northeast of Addis Ababa, erupted on September 26 after an earthquake measuring 5.5 on the Richter scale.

team - made up of government officials and disaster response experts - would facilitate delivery of humanitarian supplies to the displaced nomads, who lost more than 450 goats, 75 camels and 10 donkeys,

Palomar · 2005-10-07 05:52:59

Thousands Evacuated As El Salvador Volcano Erupts; Two Dead
El Salvador's largest volcano, dormant for more than a century, shook the ground as it woke up Saturday, hurling out hot rocks, killing at least two and forcing more than 2,000 to flee.
The Santa Ana or Ilamatepec volcano, located 66 kilometers (41 miles) west of the capital, rumbled and belched thick plumes of ash that reached more than 15 kilometers (nine miles) into the sky Saturday morning.

El Salvador's Santa Ana volcano

*Is a false-color image from NASA archives.

About the Ethiopian volcano: Sad. I'd seen an article or two about a week prior; warnings of impending eruption.

--Cindy

publiusr · 2005-10-07 09:21:47

http://volcano.und.nodak.edu/vwdocs/vw_ … terly.html
Interesting.

SpaceNut · 2005-11-23 10:10:55

[url=http://www.msnbc.msn.com/id/10166610/]Dust plume rises from Mount St. Helens
Rockfall within volcano sends up puff that draws notice in Northwest[/url]

Is the giant awakening...

rockfall2.standard.jpg

Palomar · 2005-12-15 13:47:55

*The next big bang?

Alaskan volcano preparing to erupt?

Is named Augustine. That's not a familiar name. Anyway, reports of sulfur fumes. Bleech, a rotten-egg smell. :x One guy interviewed said he could taste those fumes in the back of his throat. Double-bleech.

ANCHORAGE, Alaska - A sulfurous steam plume, hundreds of miniature earthquakes and a new swath of ash on snowy Augustine Volcano have scientists looking for a possible eruption in the next few months.
The 4,134-foot volcano hasn't shown such signs since it last erupted in 1986...

--Cindy

publiusr · 2005-12-21 14:47:13

If it is venting gas--it reduces the chance of an explosive eruption. It will do a repeat of the recent Spurr or Redoubt eruptions, most likely.

SpaceNut · 2005-12-30 10:03:02

[url=http://www.msnbc.msn.com/id/10648997/]Mount St. Helens still oozing lava
Latest series of eruptions began in September, 2004[/url]

For more than a year now, Mount St. Helens has been oozing lava into its crater at the rate of roughly a large dump truck load — 10 cubic yards — every three seconds. With the sticky molten rock comes a steady drumfire of small earthquakes.
Then in September 2004, the drumfire of low-level quakes began — occasionally spiking above magnitude 3, but generally ranging between magnitude 1 and 2. In the past 15 months, the mountain has squeezed out about 102 million cubic yards of lava.
It's not entirely clear where the lava is coming from. If it were being generated by the mountain, scientists would expect to see changes in the mountain's shape, its sides compressing as lava is spewed out.

It would seem like an endless supply of magma...

Palomar · 2006-01-11 15:24:50

*The next big bang?
Alaskan volcano preparing to erupt?
Is named Augustine. That's not a familiar name. Anyway, reports of sulfur fumes. Bleech, a rotten-egg smell. :x One guy interviewed said he could taste those fumes in the back of his throat. Double-bleech.
ANCHORAGE, Alaska - A sulfurous steam plume, hundreds of miniature earthquakes and a new swath of ash on snowy Augustine Volcano have scientists looking for a possible eruption in the next few months.
The 4,134-foot volcano hasn't shown such signs since it last erupted in 1986...

Augustine erupts

*Two explosions reported at 4:44 a.m. local time, which was the eruption. Anchorage is in no danger (from ash or otherwise). It's generated a 5-mile-high ash plume. The ash is reportedly of "low concentration."

--Cindy

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#26 2005-05-26 10:47:57

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#27 2005-06-01 05:45:58

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#28 2005-06-04 05:06:01

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#29 2005-06-08 14:31:12

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#30 2005-06-15 09:44:43

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#31 2005-07-03 07:43:47

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#32 2005-07-03 12:56:24

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#33 2005-07-16 05:53:56

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#34 2005-07-22 07:54:15

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#35 2005-08-18 12:06:54

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#36 2005-09-06 10:10:05

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#37 2005-09-06 11:02:24

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#38 2005-10-03 07:28:42

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#39 2005-10-04 12:50:46

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#40 2005-10-07 05:52:59

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#41 2005-10-07 09:21:47

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#42 2005-11-23 10:10:55

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#43 2005-12-15 13:47:55

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#44 2005-12-21 14:47:13

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#45 2005-12-30 10:03:02

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

#46 2006-01-11 15:24:50

Re: Active Terran Volcanoes - Formerly "Mount St. Helens"

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