Watch: video of earthquake on ocean floor

A scuba diver managed to record an earthquake on the sea floor.

A 5.7 Magnitude earthquake under the sea floor

I couldn't find much about it, other than this reddit comment: "The person shooting this is the husband of my close friend. His name is Jan Paul Rodriguez; he is pretty much an IRL hero in the Philippine Coast Guard. He shot this while diving when a 5.7 magnitude earthquake hit Mabini, Philippines on April 8th (there was actually 2 earthquakes within 2 minutes of each other) for anyone that is curious about the source."

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  1. So are you safe from a tsunami when you are underwater? Does it depend on the depth? Do you jump into the boat and head for deeper water when you see this? I would be worried if I saw this.

  2. Actually, yes; if you are in a boat and can get out to deeper water, do so. Tsunamis gain most of their destructive power from the runup of millions of tons of water being compressed as they reach shallows, and inertia will keep it moving inexorably inland. At sea, a tsunami is frequently barely noticeable, except by the special buoys that monitor tsunami waves.

    eta: if you are underwater, location is everything. Deep water, not such a problem. Shallow water near a beach, you'll get grabbed by the wave and pulled along with everything else in a big watery mosh pit.

  3. Awful. You can hear the screams of the microfauna as they plummet to their tiny deaths, or are crushed under grams of tumbling debris.

    [EDIT: Sorry. Got a bit dark there.]

  4. Who needs fronds with anemones like you?

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