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In 2014, the second-highest Volcano in japan, mt. Ontake
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Secrets of the Underground

In 2014, the second-highestVolcano in japan, mt. Ontake, Erupted unexpected

In 2014, the second-highest
Volcano in japan, mt. Ontake, Erupted unexpected

Full Transcript

00:00:01.000 --> 00:00:05.369
In 2014, the second-highest Volcano in japan, mt. Ontake,
00:00:05.037 --> 00:00:07.939
Erupted unexpected.
Duration
8 seconds
Views
20
Timestamp in Movie
00:07:49
Uploaded
Jul 13, 2025
Season
1
Episode
7
Genres
documentary

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Movie Summary

Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...
S01 • E08 Troublemakers could be kept here - Secrets of the Underground 00:11
Troublemakers could be kept here
S01 • E01 I can hear... Right now, I can feel air coming through. - Secrets of the Underground 00:04
I can hear... Right now, I can feel air coming through.
S01 • E01 So the rumour that Al Capone came in here and hid his money and booze - Secrets of the Underground 00:06
So the rumour that Al Capone came in here and hid his money ...
S01 • E02 That guard who suddenly disappeared on me - Secrets of the Underground 00:08
That guard who suddenly disappeared on me
S01 • E03 The workers would have found eight of the bodies in caskets, - Secrets of the Underground 00:06
The workers would have found eight of the bodies in caskets,
S01 • E07 It killed 58 people, And 5 are still missing. - Secrets of the Underground 00:05
It killed 58 people, And 5 are still missing.
S01 • E07 In an effort to prevent Future catastrophes, - Secrets of the Underground 00:08
In an effort to prevent Future catastrophes,
S01 • E01 But to confirm these tunnels really keep going, - Secrets of the Underground 00:07
But to confirm these tunnels really keep going,
S01 • E08 Some of the rumours that were spreading at the time were that - Secrets of the Underground 00:10
Some of the rumours that were spreading at the time were tha...
S01 • E02 So now I'm beginning to wonder about another theory I've come across, - Secrets of the Underground 00:10
So now I'm beginning to wonder about another theory I&#...
S01 • E03 So, those eight were buried in a proper Irish-Catholic fashion, - Secrets of the Underground 00:05
So, those eight were buried in a proper Irish-Catholic fashi...
S01 • E07 In helium gases Prior to the blast. - Secrets of the Underground 00:05
In helium gases Prior to the blast.
S01 • E03 But Tim thinks that out of respect, - Secrets of the Underground 00:05
But Tim thinks that out of respect,
S01 • E01 GPR emits a pulse of electromagnetic energy into the wall. - Secrets of the Underground 00:04
GPR emits a pulse of electromagnetic energy into the wall.
S01 • E07 Often right before A volcano erupts, - Secrets of the Underground 00:06
Often right before A volcano erupts,
S01 • E01 The pulse bounced back to a receiver, - Secrets of the Underground 00:08
The pulse bounced back to a receiver,
S01 • E02 Sometimes called a COG site, - Secrets of the Underground 00:12
Sometimes called a COG site,
S01 • E08 On the other side of it, there was a water tank, a water cistern, - Secrets of the Underground 00:07
On the other side of it, there was a water tank, a water cis...
S01 • E03 Will our hi-tech tools finally reveal - Secrets of the Underground 00:05
Will our hi-tech tools finally reveal
S01 • E08 Just condensation coming through it cos there's a water tank there. - Secrets of the Underground 00:04
Just condensation coming through it cos there's a water...