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Volcanic activity continues at Hakone resort

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The volcano had become sufficiently active to spew ash deposits and rocks on surrounding areas if an eruption occurs

That doesn't make sense to me. Does it mean the volcano has not yet spewed ash and rocks on surrounding areas, but would if it were to erupt? That seems like a no-brainer.

2 ( +2 / -0 )

So far, it has been blowing only steam.

0 ( +0 / -0 )

That is an active volcanic area. The pressure is constantly being released by a man made ventilation system. Due to the earthquakes the ventilation system could become ineffective and cause a volcanic explosion. As it is now with the pressure being released if it erupts most likely it will only be a lava flow. But I would not like to gamble with either one.

0 ( +1 / -1 )

Let off a little steam seems a good thing, hopefully no one gets hurt.

0 ( +1 / -1 )

Beautiful area, I hope it settles down soon.

1 ( +1 / -0 )

I've never heard about the man made ventilation system...does anyone know more about it?

1 ( +1 / -0 )

Mount Saint Helens- This is what this sounds very much like what is happening with this volcano. Mount Saint Helens and Mount Hakone are both ''shield'' volcanos. Mount Saint Helens started out with 'low rumblings' not spectacular eruptions. In fact, the beginnings were minor ''puffs'' of ash at the summit. No one was thinking it was going to be a big eruption. This is the same here. It is important that someone takes this ''missive'' from me seriously. I am not sure if anyone will but it has to be said here. Mount Hakone is building to a catastrophic eruption that will include a Pyroclastic Flow. It will eventually erupt like the cork coming off a super backed up fizzy drink.

-7 ( +2 / -9 )

This area is overdue a bit of a blow. hopefully nothing major....

0 ( +0 / -0 )

Davidnorell,

Mt Saint Helens and Mt Hakone are not shield volcanoes. They are Stratovolcanoes. A shield volcano example would be the ones in Hawaii.

A stratovolcano eruption tend to be very violent eruptions. They are known to blow themselves apart. Mt. Saint Helens blew half of the mountain away and it's eruption was considered minor. Look what happened to Mount Pinatubo eruption in the Philippines. It also is a stratovolcano.

I'm saying is Mt. Hakone has the uttermost potential to be a violent eruption due to what type of volcano it is. Let's just hope it goes back to sleep.

2 ( +2 / -0 )

Mount Saint Helens- This is what this sounds very much like what is happening with this volcano. Mount Saint Helens and Mount Hakone are both ''shield'' volcanos. Mount Saint Helens started out with 'low rumblings' not spectacular eruptions. In fact, the beginnings were minor ''puffs'' of ash at the summit. No one was thinking it was going to be a big eruption.

Mt. St. Helens was giving ample warning of an eruption via the presence of a growing lava dome. Volcanologists had set up multiple monitoring stations at what they assumed would be safe distances should the lava dome erupt. What they hadn't expected was that an earthquake would cause part of the volcano slope to fall away in a landslide, exposing the pressurized lava pushing up on the lava dome. Instead of the blast going up, the blast went out sideways and some of the volcanologists were killed instantly.

The Hakone activity only seems to be tremors and steam so far. I haven't heard any reports of a lava dome building.

1 ( +1 / -0 )

I wonder why this is happening now. Izu chain of volcanoes have been popping their lids for a number of years, so this might be related, but the Tohoko Earthquake must have shifted a lot of local plates around and we might be starting to see the results already. Who knows if both those seismic events are related, but if either way it spells trouble.

0 ( +1 / -1 )

My apologies, it is correct, both volcanoes are stratovolcanoes. I had looked it up after i posted this, and it was too late to change what I had posted.

1 ( +1 / -0 )

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