2 Russian tourists died while scuba diving in Verde Island in Batangas City

[clownfishsydney]

That's a strong current, but not a downcurrent

Look at minute 4:00, the bubbles are going down for a fair while after they leave the divers. It is a downcurrent!

 

[Centrals]

Look at minute 4:00, the bubbles are going down for a fair while after they leave the divers. It is a downcurrent!

Mild down current.

 

[Dan]

So if it has happens on 12 minutes I would say using same scale descend from 23 to 95 takes about 6 minutes ~12m/minute

What we would worry about is ascending speed. Based on your info, he ascended from 95 to surface in 3 minutes or > 30m/min or over 3 times the rate of a safe ascend of 10m/min.

 

[iho]

What we would worry about is ascending speed. Based on your info, he ascended from 95 to surface in 3 minutes or > 30m/min or over 3 times the rate of a safe ascend of 1

What we would worry about is ascending speed. Based on your info, he ascended from 95 to surface in 3 minutes or > 30m/min or over 3 times the rate of a safe ascend of 10m/min.

Probably he was out of air before ascend... Given this profile he might spent over 3000 l before start ascending

 

[dmaziuk]

What we would worry about is ascending speed. Based on your info, he ascended from 95 to surface in 3 minutes or > 30m/min or over 3 times the rate of a safe ascend of 10m/min.

I'm not seeing anyone going down to 95 msw without blowing past NDL, and I'm not seeing anyone with a 15L tank having enough gas to do the subsequent deco stops. To me that looks like a clear "better bent than drowned" scenario where you're too deep in poo to worry about safe ascent rate.

 

[tsc]

The oxygen toxicity would get you at 95 m also

 

[dmaziuk]

At 2.2 it certainly will but in this scenario there's a good chance you'd be OOG before that happens.

Info Thread 'Oxygen Toxicity Limits & Symptoms'

Dec 4, 2012

Oxygen Toxicity Limits & Symptoms​

Oxygen toxicity limits can be very confusing, especially for PPO2 (Partial Pressure of Oxygen) levels above 1.6 ATA used in chamber-based hyperbaric treatment (recompression) and decompression tables. For example, here is a chart of one of the most common DCS (Decompression Sickness) treatment tables. Note that the PPO2 of pure oxygen at 60'/18.3M is 2.82 ATA — or more than twice the normal limits recreational divers observe.

U.S. Navy Diving Manual, Revision 7A, 30 April 2018.
Figure 17-4...​

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[Joneill]

Actually some of the best videos i've seen despicting downcurrents in Indo were always in a freediving setting, where you dont see bubbles flowing downards but can definitly see the waterfall effect.

These are 2 greats examples
(need to login but worth it)

Freediving where there could be downcurrents seems like an incredibly stupid idea to me!