[Rockhounds] Krakatoa Is Still Active, and We Are Not Ready for the Tsunamis Another Eruption Would Generate

[J Bryan Kramer]

Maybe it woild take a few centuries to build up the cone and caldera a like
it had beck in the 1800's before we have to worry about it.
BK

““There exists a law…inborn of our hearts…by natural intuition. … If our
lives are endangered by plots or violence or armed robbers or enemies, any
and every method of protecting ourselves is morally right.””
Cicero

J Bryan Krämer       North Florida, USA
photos at: http://pbase.com/photoburner


On Sun, Feb 7, 2021 at 7:05 PM Kreigh Tomaszewski <kreigh at gmail.com> wrote:

> The August 1883 eruption of Krakatoa was one of the deadliest volcanic
> explosions in modern history. The volcano, found in the middle of the Sunda
> Strait in between two of Indonesia’s largest islands, was on a small island
> which disappeared almost overnight. The eruption was so loud it could be
> heard in Reunion, some 3,000 miles away.
>
> As the volcano collapsed into the sea, it generated a tsunami 37m high –
> tall enough to submerge a six-story building. And as the wave raced along
> the shoreline of the Sunda Strait, it destroyed 300 towns and villages, and
> killed more than 36,000 people.
>
> Nearly 45 years later, in 1927, a series of sporadic underwater eruptions
> meant part of the original volcano once again emerged above the sea,
> forming a new island named Anak Krakatoa, which means “Child of Krakatoa”.
> In December 2018, during another small eruption, one of Anak Krakatoa’s
> flanks collapsed <https://www.bbc.co.uk/news/world-asia-46669280> into the
> ocean and the region’s shorelines were once again hit by a major tsunami.
> This time, 437 were left dead, nearly 32,000 were injured and more than
> 16,000 people were displaced.
>
> Even though Anak Krakatoa had been active since June that year, local
> residents received no warning that a huge wave was about to hit. This is
> because Indonesia’s early warning system
> <
> https://theconversation.com/indonesia-tsunami-why-wasnt-there-an-earlier-warning-104265
> >
> is
> based on ocean buoys that detect tsunamis induced by submarine earthquakes,
> such as those that struck on Boxing Day in 2004, in one of the most deadly
> natural disasters of all time.
>
> But tsunamis caused by volcanic eruptions are rather different and, as they
> aren’t very common, scientists still don’t fully understand them. And
> Indonesia has no advanced early warning system
> <https://www.preventionweb.net/news/view/62789> in place for
> volcano-generated tsunamis.
>
> At some point in the future, Anak Krakatoa will erupt again, generating
> more tsunamis. Since it is difficult to predict exactly which areas of the
> Sunda Strait will be affected, it is of paramount importance that residents
> in coastal villages are well aware of the danger.
>
>
> https://www.discovermagazine.com/planet-earth/krakatoa-is-still-active-and-we-are-not-ready-for-the-tsunamis-another
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