Article

2018-09-27 -Signs, Portents, and the Weather-

[WUWT]

The volcanic island of Krakatau (previously called Krakatoa) is situated in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung. The name is also used for the surrounding island group comprising the remnants of a much larger island of three volcanic peaks which was obliterated in a cataclysmic 1883 eruption.

In 1927, a new island, Anak Krakatau, or “Child of Krakatoa”, emerged from the caldera formed in 1883 and is the current location of eruptive activity.

In the NASA photos below, you can see some stunning images of the volcano as it’s been stirring to life again

The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite acquired the wide view (top) on September 24. The MultiSpectral Instrument (MSI) on the European Space Agency’s Sentinel-2 acquired the detailed image (second) on September 22. Both images show volcanic ash and steam streaming southwest over the waters of the Sunda Strait.

Local sources reported that this eruption has been ongoing since June 19, 2018. Ash plumes have been observed rising to altitudes up to 1.8 kilometers (6,000 feet). As of September 24, the eruption had not yet affected air travel in southeast Asia, according to news reports. The local alert status remained at “caution,” which is the second-highest level.

Activity at the Indonesian volcano Anak Krakatau is not unusual; eruptions have occurred sporadically over the past few decades. And before that, it was the site of the infamous, deadly eruption of 1883. It is somewhat unusual, however, for satellites to get cloud-free views, as they did in September 2018.

Posted by 3dc 2018-09-27 00:00|| || Front Page|| [11141 views ] Top

#1 Trump is complicit!

Posted by Raj 2018-09-27 00:28|| 2018-09-27 00:28|| Front Page Top

#2 Gaia's answer to global warning: blow off a little steam.

Posted by Skidmark 2018-09-27 04:45|| 2018-09-27 04:45|| Front Page Top

#3 The volcano and the bicycle. From Krakatoa Volcano: Facts About 1883 Eruption
By Mary Bagley

While justifiably rated as one of the most destructive volcanic eruptions of modern times, Krakatoa was not the largest eruption in the recent history of Indonesia. That "honor" belongs to the eruption of Mount Tambora on April 10, 1815. Krakatoa ranks third on the list based on explosive force and destruction.
Tambora is the only eruption in modern history to rate a VEI of 7. Global temperatures were an average of five degrees cooler because of this eruption; even in the United States, 1816 was known as the "year without a summer." Crops failed worldwide, and in Europe and the United States an unexpected outcome was the invention of the bicycle as horses became too expensive to feed.

Hum.

Then this documentary gem, Krakatoa - The Great Volcanic Eruption

Posted by Woodrow 2018-09-27 06:13|| 2018-09-27 06:13|| Front Page Top

#4 Simon Winchester's Krakatoa is a wry and witty account of the 1883 eruption and its effects not only on the local region but also the effects world wide. Some effects were on weather, others were on culture. One reason Krakatoa is so explosive has to do with it's unique setting in terms of the geology of the region and its location at basically the hinge point of two spreading techtonic plates while the Australian plate subducts below them.

Posted by Cheaderhead 2018-09-27 06:42|| 2018-09-27 06:42|| Front Page Top

#5 There's always Lake Toba, Huckleberry Ridge, and La Garita (all VEI 8).

Trump and Kavanaugh were responsible for those, too.

Posted by Mullah Richard 2018-09-27 07:59|| 2018-09-27 07:59|| Front Page Top

#6 Hollywood's next movie remake

Posted by Frank G 2018-09-27 08:40|| 2018-09-27 08:40|| Front Page Top

#7 As of September 24, the eruption had not yet affected air travel in southeast Asia, according to news reports

Rest assured that when it does, Malaysian Airlines will be hit first/hardest

Posted by Frank G 2018-09-27 08:42|| 2018-09-27 08:42|| Front Page Top

#8 Given I studied Geology, I like volcanoes erupting if I can watch from safe distance. I do feel a little guilty about wanting them to erupt but hey, there's a reason I don't live on a volcano.

Posted by Silentbrick 2018-09-27 09:43|| 2018-09-27 09:43|| Front Page Top

#9 Subduction leads to Orogeny, SB.

Posted by Mullah Richard 2018-09-27 11:17|| 2018-09-27 11:17|| Front Page Top

#10 Subduction leads to Orogeny

And a glorious thing it is. Though the one in California and the west coast is moving pretty slow. The zone over near Sumatra is the one eating the fastest.

Posted by Silentbrick 2018-09-27 13:01|| 2018-09-27 13:01|| Front Page Top

#11 And orogeny leads to philology or something. Pregnancy?

Posted by KBK 2018-09-27 13:11|| 2018-09-27 13:11|| Front Page Top

#12 Orogeny leads to erosion and sedimentation. Subduction is how continents 'move'.

Posted by Silentbrick 2018-09-27 15:49|| 2018-09-27 15:49|| Front Page Top

#13 Don't forget Lake Taupo and the Taupo Supervolcano in New Zealand.

Posted by Alaska Paul 2018-09-27 17:51|| 2018-09-27 17:51|| Front Page Top

#14 Hope that island doesn't tip over. The ejecta could propel it across the Pacific

HT/Hank Johnson

Posted by Frank G 2018-09-27 19:35|| 2018-09-27 19:35|| Front Page Top

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