Originally posted by ROBL240
For water displacement you need to put something in its place to shift that amount of mass.
1. It would register on seismographs something of that mangitude happening at one, wether as a harmonic event or a anomalous reading occuring for some
time out of background readings.
...............
4. Even if a Fissure had opened up you'd expect to see evidence of this on the lakebed. Plus seismographs would have also registered activity.
Originally posted by ROBL240
The problem with that is they knew it was a sinkhole as they tested the waters depth using Sonar, and within the hour almost, knew it was a sinkhole.
With the Lake in Chile theres still Sedimential Lakebed and no Fissure cracks or seismic evidence on record of any earthquake taking place in the area
in question (you can register a small WW2 bomb going off in France from Hawaii.) So the theory is still open.
You keep saying seismic activity might help explain this, how about an earthquake measuring 6.2 on the Richter scale:
earthobservatory.nasa.gov...
Although the sudden draining of a lake is rare, it is not unheard of. One explanation that scientists proposed was an earthquake in the region
that measured 6.2 on the Richter scale. Earthquakes can open up fissures in the rock, giving water an escape route. Another explanation was more
prosaic: melting. Blocks of ice dam many glacial lakes, and when the ice melts, the lake can drain away. Sometimes a lake can drain in a rapid deluge,
known as a glacial lake outburst flood.
Also I'm generally skeptical about UFOs. However there are many reports of "earthquake lights" or sometimes simply called "earth lights" that
occur in areas of tectonic stress, especially just before earthquakes. We don't know everything yet so this phenomenon is little understood, but
there may be something to it. I know energy can be generated from stress via the piezoelectric effect, and maybe the earth lights are some kind of
similar stress-to-energy conversion method, where a potential voltage is generated that ionizes the air, creating plasma which glows and could be
interpreted as a UFO.
So, a combination of a 6.2 magnitude earthquake causing fissures to open up, and POSSIBLY also causing earth lights is one possible explanation, that
would be somewhat consistent with UFO sightings.
Earthquake Lights
What are earthquake lights? Are they real?
Regarding evidence of the fissure, look at the lake bed photos in the earthobservatory link, you can't really see under the edges of the glacier too
well there could be fissures there which we can't see.