GeologyRocksvolcanoes of 2013
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Give them a chance!!!
Sat, 01/25/2014 - 18:11Give them a chance!!! We're not through the first month yet.
However one did erupt recently - might have been Etna.
Go the the USGS site and you can register to receive news, by email, of earthquakes and/or volcanoes.
John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant
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Predictions? I am unlikely
Mon, 01/27/2014 - 09:28Predictions?
I am unlikely to win the lottery or the Grand National - although I might get placed in the latter.
It will rain and/or get dark before tomorrow morning.
Enough?
John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant
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Here you go.........
Wed, 01/29/2014 - 08:12Here you go.........
Tuesday, Jan 28, 2014
Sakurajima volcano (Kyushu, Japan) activity update
Eruption of Sakurajima volcano early on 27 Jan
The volcano seems slowly to produce more powerful vulcanian explosions again. An eruption yesterday morning at 2am local time ejected an ash plume that rose to 12,000 ft (3.6 km) and covered the crater with incandescent material. It was the 10th explosion in 2014
Sakurajima volcano is known for its irregular (typically 1-2 per day) strombolian to vulcanian-type explosions which sometimes can reach considerable size and eject ash and bombs to several kilometers height and distance.
This semi-persistant activity has been going on since 1955, but fluctuates a lot in intensity in rhythms of typically weeks to few months.
Starting from late August, we try to list single explosions (at least those recorded by Tokyo VAAC and other sources). If you like to help us keep the table updates, please feel free to drop a message!
List of explosions from Sakurajima
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Date and time (UTC)
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Time UTC
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Elevation of ash cloud
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Source
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(Japan time JST = UTC+09:00)
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28 Jan
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01:00 (ash plume obs.)
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4.000 ft (1.2 km)
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VAAC
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Y.
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VA: D (ash plume obs.)
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unknown
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VAAC
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26 Jan
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16:59 (explosion)
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12.000 ft (3.7 km)
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VAAC
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24 Jan
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23:00 (ash plume obs.)
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13.000 ft (4 km)
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VAAC
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22:49 (explosion)
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11.000 ft (3.4 km)
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VAAC
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21:18 (explosion)
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7.000 ft (2.1 km)
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VAAC
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10:46 (ash plume obs.)
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unknown
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VAAC
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23 Jan
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23:56 (ash plume obs.)
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4.000 ft (1.2 km)
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VAAC
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22 Jan
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05:52 (ash plume obs.)
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16.000 ft (4.9 km)
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VAAC
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01:25 (ash plume obs.)
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12.000 ft (3.7 km)
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VAAC
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01:16 (explosion)
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10.000 ft (3.1 km)
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VAAC
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17 Jan
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07:52 (explosion)
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9.000 ft (2.7 km)
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VAAC
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16 Jan
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22:29 (explosion)
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8.000 ft (2.4 km)
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VAAC
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14 Jan
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07:28 (ash plume obs.)
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unknown
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VAAC
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09 Jan
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06:19 (explosion)
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6.000 ft (1.8 km)
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VAAC
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06 Jan
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17:11 (explosion)
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10.000 ft (3.1 km)
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VAAC
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26 Dec
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15:25 (explosion)
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8.000 ft (2.4 km)
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VAAC
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25 Dec
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07:28 (explosion)
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6.000 ft (1.8 km)
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VAAC
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03:11 (explosion)
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8.000 ft (2.4 km)
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VAAC
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Y.
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VA: D (ash plume obs.)
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unknown
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VAAC
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24 Dec
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08:30 (explosion)
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11.000 ft (3.4 km)
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VAAC
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23 Dec
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10:32 (explosion)
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8.000 ft (2.4 km)
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VAAC
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22 Dec
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10:56 (explosion)
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6.000 ft (1.8 km)
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VAAC
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07:50 (explosion)
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7.000 ft (2.1 km)
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VAAC
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05:58 (explosion)
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6.000 ft (1.8 km)
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VAAC
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21 Dec
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03:01 (explosion)
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7.000 ft (2.1 km)
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VAAC
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18 Dec
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18:22 (explosion)
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10.000 ft (3.1 km)
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VAAC
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11:24 (explosion)
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9.000 ft (2.7 km)
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VAAC
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16 Dec
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18:59 (explosion)
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8.000 ft (2.4 km)
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VAAC
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11:48 (explosion)
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7.000 ft (2.1 km)
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VAAC
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15 Dec
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21:44 (explosion)
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11.000 ft (3.4 km)
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VAAC
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04:56 (explosion)
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6.000 ft (1.8 km)
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VAAC
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John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant
Rank:
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New this morning from
Fri, 01/31/2014 - 06:52New this morning from USGS............
AVO/USGS Volcanic Activity Notice
Volcano: Shishaldin (CAVW #1101-36-)
Current Volcano Alert Level: ADVISORY
Previous Volcano Alert Level: NORMAL
Current Aviation Color Code: YELLOW
Previous Aviation Color Code: GREEN
Issued: Thursday, January 30, 2014, 11:39 AM AKST (20140130/2039Z)
Source: Alaska Volcano Observatory
Notice Number: 2014/A3
Location: N5445 W16358
Elevation: 9373 ft (2857 m)
Area: Aleutians Alaska
Volcanic Activity Summary: The Alaska Volcano Observatory is raising the Aviation Color Code to YELLOW and the Alert Level to ADVISORY at Shishaldin Volcano based on satellite observations over the past day of increased surface temperatures in the summit crater, as well as increased emissions of steam observed yesterday in satellite and web camera images. These observations represent a departure from normal background activity at Shishaldin, but do not necessarily indicate that an eruption will occur. Similar levels of unrest were last noted during 2009, and did not result in an eruption.
Shishaldin is monitored by a local seismic network, satellite data, web camera, telemetered geodetic network, and distant infrasound networks. Seismic monitoring of Shishaldin is significantly impaired due to equipment failures of seismic stations close to the volcano. We hope to be able to detect significant explosive activity (should it occur) using remaining functioning seismic stations in the region, satellite, and distant infrasound networks.
AVO will continue to watch Shishaldin carefully for additional signs of increased unrest.
Recent Observations:
[Volcanic cloud height] None observed.
[Other volcanic cloud information] None observed.
Remarks: Shishaldin volcano, located near the center of Unimak Island in the eastern Aleutian Islands, is a spectacular symmetric cone with a base diameter of approximately 10 miles (16 km). A small summit crater typically emits a noticeable steam plume with occasional small amounts of ash. Shishaldin is one of the most active volcanoes in the Aleutian volcanic arc, erupting atleast 28 times since 1775. Most of Shishaldin's eruptions have consisted of small ash and steam plumes, although the most recent eruption in April-May 1999 produced an ash column that reached a height of 45,000 ft above sea level.
Contacts: John Power, Scientist-in-Charge, USGS
[email protected] (907) 786-7497
Jeff Freymueller, Coordinating Scientist, UAFGI
[email protected] (907) 322-4085
Next Notice: A new VAN will be issued if conditions change significantly or alert levels are modified. While a VAN is in effect, regularly scheduled updates are posted at http://www.avo.alaska.edu
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
You have received this email because you have subscribed to the USGS VNS. To change your parameters, or unsubscribe from the service, go to http://volcanoes.usgs.gov/vns/
John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant
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Indonesia
Sun, 02/02/2014 - 18:14I see Mt Sinabung is venting off just now. I was staggerd to see the number, ~ 127, of active volcanos in the Indonesian Archipelago.
I was also surprised to discover how much oil and gas lays in the backarc basins amongst these islands.
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yes, theres a lot of them.
Sun, 02/02/2014 - 21:21yes, theres a lot of them. good write up and pictures on
http://www.dailymail.co.uk/news/article-2550079/Volcano-eruption-kills-14-people-Indonesia-ash-sent-spewing-miles-air.html
John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant
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volcanoes of 2013
Submitted by John on Mon, 01/13/2014 - 19:53.http://www.theatlantic.com/infocus/2013/12/2013-the-year-in-volcanic-activity/100645/
John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant