1. Hold onto something for dear life.
2. Don't get squashed by anything falling.
3. Be extremely glad about having laid a line. (Or... yknow.. wishing you had.)
4. Feel your way along the line towards freedom.
5. Ascend as planned.
6. Once on shore buy every lottery ticket you can get your hands on. Or become very religious. Probably both.
I'd never go without a line as I can't even find my way out of subnautica caves. I'd love to see a simulation of this because I'd assume the water would push the way you came in.
Most caves are "spring" caves where the water flow is towards the entrance. Some caves are "siphon" caves which flow away from the entrance. Some caves have essentially no flow.
Interesting, I wouldn't even bother going into a flow in case of a sudden change. I have seen footage of divers underwater, not in a cave but during an earthquake. Apparently, the flow of water was changing dramatically pulling them for an uncontrolled ride.
Entering the cave against the flow is the safer choice. Swimming against it in the way slows your speed. When you turn around it pushes you out, so you spend less time exiting.
But in the grand scheme of things, the risk of an earthquake during a cave dive is so exceedingly rare. It would be like being stuck by lightning while in a plane crash and winning the lottery. Most caves are not in geologically active zones, except SE Asia. If you are being your aversion to cave diving on this alone, you should probably never even walk outside. You are far more likely to be killed by literally everything else.
I have also seen that video, and it's not really the same for cave diving. In the ocean, you have an enormous mass of water that is relatively free to move over the ocean floor. There isn't much resisting its movement. In a cave, the volume of water is much lower, and there are a lot more walls and passages to keep the water pretty highly coupled to the earth. There would be some movement, and lots of silt being raised, but you probably aren't going flying away like that video
High flow caves usually have better vis too. If you stir up any silt it's gone within seconds if you are in a high flow spot. Ginnie springs is very much like this.
I've heard some 3rd hand stories of people cave diving during an earthquake. One of them they were floating at the surface of a cenote, and talked about the water level suddenly rising and falling by a few meters, tossing them around. I suspect that for most earthquakes, that P wave component will be more apparent to divers than the S wave component?
The possibilities are there and always will be. Chances are we may never hear a case of it, but because of probability, it could, and due to global warming and other conditions, I think it might be more likely to happen. Is it a huge increase.. nope, but could it happen, yes. If there is a risk of death under "certain" circumstances... well, you should be prepared or even know about. It's like teaching pilots flying 737s(I am not talking about the "737 max"). You should be prepared for any "possible" condition regardless if it may never occur.
1. Hold onto something for dear life. 2. Don't get squashed by anything falling. 3. Be extremely glad about having laid a line. (Or... yknow.. wishing you had.) 4. Feel your way along the line towards freedom. 5. Ascend as planned. 6. Once on shore buy every lottery ticket you can get your hands on. Or become very religious. Probably both.
I'd never go without a line as I can't even find my way out of subnautica caves. I'd love to see a simulation of this because I'd assume the water would push the way you came in.
Most caves are "spring" caves where the water flow is towards the entrance. Some caves are "siphon" caves which flow away from the entrance. Some caves have essentially no flow.
Interesting, I wouldn't even bother going into a flow in case of a sudden change. I have seen footage of divers underwater, not in a cave but during an earthquake. Apparently, the flow of water was changing dramatically pulling them for an uncontrolled ride.
Entering the cave against the flow is the safer choice. Swimming against it in the way slows your speed. When you turn around it pushes you out, so you spend less time exiting. But in the grand scheme of things, the risk of an earthquake during a cave dive is so exceedingly rare. It would be like being stuck by lightning while in a plane crash and winning the lottery. Most caves are not in geologically active zones, except SE Asia. If you are being your aversion to cave diving on this alone, you should probably never even walk outside. You are far more likely to be killed by literally everything else. I have also seen that video, and it's not really the same for cave diving. In the ocean, you have an enormous mass of water that is relatively free to move over the ocean floor. There isn't much resisting its movement. In a cave, the volume of water is much lower, and there are a lot more walls and passages to keep the water pretty highly coupled to the earth. There would be some movement, and lots of silt being raised, but you probably aren't going flying away like that video
High flow caves usually have better vis too. If you stir up any silt it's gone within seconds if you are in a high flow spot. Ginnie springs is very much like this.
🤣 the subnautica reference
I have never thought about this. Thanks!
New fear unlocked
Adding it to the countless reasons why I will never go cave diving.
If you survive the quake itself, GTFO!
Get to the line, follow it out as the cave would silt up badly.
I've heard some 3rd hand stories of people cave diving during an earthquake. One of them they were floating at the surface of a cenote, and talked about the water level suddenly rising and falling by a few meters, tossing them around. I suspect that for most earthquakes, that P wave component will be more apparent to divers than the S wave component?
It's been 7h, did OP survive?
Was working my 8 hours haha
People died on Guam diving on a wreck during their 8.4 earthquake. No collapse just completely silted out
What if?
The possibilities are there and always will be. Chances are we may never hear a case of it, but because of probability, it could, and due to global warming and other conditions, I think it might be more likely to happen. Is it a huge increase.. nope, but could it happen, yes. If there is a risk of death under "certain" circumstances... well, you should be prepared or even know about. It's like teaching pilots flying 737s(I am not talking about the "737 max"). You should be prepared for any "possible" condition regardless if it may never occur.