Aira Caldera (姶良カルデラ, Aira-Karudera) is a gigantic volcanic caldera in the south of the island of Kyūshū, Japan. The caldera was created by a massive eruption, approximately 22,000 years ago. Eruption of voluminous pyroclastic flows accompanied the formation of the 17 × 23 km-wide Aira caldera. Together with a large pumice fall, these amounted to approximately 400 km3 of tephra (VEI 7).
The major city of Kagoshima and the 16,000-year-old Sakurajima volcano lie within the caldera. Sakura-jima, one of Japan's most active volcanoes, is a post-caldera cone of the Aira caldera at the northern half of Kagoshima Bay.
(w. graber)
Here we are, here we stand
No one seems to understand
Afraid you've seen to much
To really know what's best
Ain't it strange when you don't know what's true
You without your book of questions
We missed out on all the best ones
Something we just had to do
Tried to feel so much better
Tried to make the easy way out
But there's nothing I can do
[Chorus]
And maybe I should really know... You
But I feel like I don't know... You
One more day - one more time
I can't find some peace of mind
Tell me that it doesn't matter
Tell me that I should know better
And it's just a waste of time
[Chorus]
Y'know it's all right
One last day - one last time
Now to find some peace of mind
All I know (I think I know)
All I know (I think I know)
All I know is I don't know
And I still don't even know - what to do