The solar eclipse of this August 12, 2026 will not cause earthquakes, does not contaminate food, nor generates any special radiation capable of affecting pregnant women. The anticipation for the first total solar eclipse visible from the Peninsula in over a century has also revived some of the hoaxes and myths about eclipses that have accompanied these phenomena for generations.
Against them, scientific organizations like NASA and the National Geographic Institute (IGN) allow us to distinguish between superstitions and real effects.
Can the eclipse cause earthquakes or volcanic eruptions?
One of the fears that traditionally accompany eclipses is their supposed ability to trigger earthquakes, volcanic eruptions, or other major natural disasters. There is no scientific evidence to establish that causal relationship.
Earthquakes are fundamentally caused by tectonic processes, such as the breaking of rock masses along faults. The temporal coincidence of an earthquake with an eclipse does not prove that there is a relationship between both events.
In fact, eclipses are not unpredictable astronomical events. The position and movement of the Earth and the Moon allow them to be calculated with enormous precision. The IGN details that the eclipse this Wednesday will travel across the Peninsula from west to east and that the global maximum will occur at 19:46 hours near Iceland.
The eclipse does not produce special radiation
Another of the hoaxes about the solar eclipse consists of thinking that during those minutes the sun begins to emit some type of extraordinary or especially harmful radiation for humans. This does not happen.
NASA includes this statement among the most frequent misconceptions. During totality, when the Moon completely covers the solar disk, the corona that remains visible is much fainter than the surface of the sun and no mysterious or extraordinary radiation caused by the eclipse appears.
This does not mean that looking at the sun is safe. The real danger arises when directly observing the solar surface during the partial phases without proper protection, as it can cause damage to the retina. That is why it is essential to differentiate between the hoax of a supposed "eclipse radiation" and the real risk of looking directly at the sun.
Is the eclipse dangerous for pregnant women?
The belief that pregnant women should not look at an eclipse because it can cause harm to the fetus also lacks scientific basis.
NASA expressly addresses this myth and explains that it is related to the false belief that during an eclipse, harmful radiation different from the usual is generated. There is no evidence that viewing an eclipse while following normal eye safety measures poses a specific risk to a pregnant woman or to the fetus.
The precautions that a pregnant woman should take are, therefore, the same as those related to solar observation that any other person should follow: do not look directly at the sun during partial phases without proper protection.
Does food spoil during an eclipse?
Another superstition that has survived over time holds that prepared or exposed food during an eclipse can become contaminated, spoil, or become harmful to health.
NASA also debunks this claim. If during an eclipse there were radiation capable of contaminating food, it would equally affect stored food or crops, something for which there is no scientific evidence.
Therefore, it is not necessary to throw away food, cover food, or stop eating during the solar eclipse on August 12 simply because the astronomical phenomenon is occurring.
An eclipse does not predict misfortunes or changes in our lives
Eclipses have historically been interpreted as omens of wars, deaths, diseases, and great disasters. This relationship is part of the superstitions that have accompanied these events for centuries, but it has no scientific backing.
NASA also includes among the myths the belief that an eclipse can anticipate significant personal events or health problems. Relating a subsequent event to the eclipse constitutes an example of confirmation bias, by selecting coincidences that seem to support a belief and ignoring all the occasions when nothing happens.
The eclipse this Wednesday is, in fact, a perfectly predictable astronomical event: it occurs when the Moon passes between the Earth and the sun and casts its shadow over certain areas of our planet.
The real danger: looking at the sun without protection
Among so many hoaxes, there is a risk that is real and should not be minimized. Looking directly at the sun without adequate protection can cause eye injuries, both during an eclipse and any other day.
For the eclipse on this August 12, the IGN recommends using only solar observation glasses certified according to EN ISO 12312-2:2015 and with CE marking when purchased in the European Union. It also expressly advises against using X-rays, conventional sunglasses, CDs, tinted glasses, or uncertified filters.
Even when using approved glasses, the agency advises not to look at the sun for more than one minute at a time. The glasses must cover the entire field of vision and be in perfect condition.
Can you look at the eclipse if it is cloudy?
The presence of clouds should not be interpreted as eye protection. That the brightness decreases or that the sun is less bothersome to the naked eye does not automatically make direct observation safe.
When the solar disk is visible during the partial phases, precautions must be maintained. The IGN establishes as an essential rule never to look directly at the sun without approved protection.
Therefore, clouds should not be used as a substitute for proper glasses. The safety recommendation depends on exposure to the sun and not on whether the sky appears darker or lighter.
What does happen during a solar eclipse
That the great myths are false does not mean that a solar eclipse does not produce perceptible changes. The drastic decrease in light during totality transforms the environmental conditions for a few moments and allows the observation of phenomena that are normally hidden by the brightness of the solar disk.
The most spectacular change occurs within the totality band. When the Moon completely covers the sun, the solar corona can be observed, while the landscape experiences an extraordinary darkening in a matter of seconds. NASA precisely uses total eclipses as an opportunity to study the sun and its corona.
None of this makes the total solar eclipse of 2026 a phenomenon capable of triggering disasters or mysteriously altering health. The risk that deserves special attention this Wednesday is much more concrete: incorrectly observing the sun and without the necessary eye protection.