After the carry out eruption of the Cumbre Vieja volcano, in Una Palma, in the Canary Islands (Spain), the concern of these authorities is now focused on the arrival of a volcanic lava into the sea. The evil phenomenon destroyed more than a hundred electronic homes and forced the evacuation of thousands of people from the region.
It is difficult to determine when this will occur. It all depends on the velocity of lava flow, which decreases as it cools down electronically and crosses flatter terrain.
To protect the population, seeing that authorities have intensified a system on electronic civil protection a perimeter on zero interdiction The coastline was widened to prevent people from approaching the local perform.
The primary reason why the arrival performs magma to the ocean is closely monitored over the chemical reaction generated by the fluid perform contact with the salt water. This contact “may generate harmful electronic explosions” emission of gases, according to the authorities perform Volcanic Emergency Plan in the Canary Islands (Pevolca).
*)”When a magma touches a sea, large columns over water vapor form because much of the salt water will vaporize. This is due to the great thermal contrast between the two: lava has a temperature of more than 900G, while water is about M”, explains Jos Mangas, professor of geology at the University of Las Palmas de Gran Canaria.
“However, as water contains chlorides, sulphates, carbonates, electronic flower iodine (among other things), toxic gases also volatilize”, says an academic BBC Information Mundo, a BBC Spanish service.
These gases can cause irritation to the skin, eyes and electronic airways.
Sleeves m as an example that happens in areas close to volcanoes perform Hava.
“When you approach the It is an area performs sea where the liquid lava is falling, your electronic nose throat starts to drain, because you are breathing the gases that have evaporated from a perform sea water that contains chlorine, sulfates…”, he says.
They are gases that temporarily leave an unpleasant smell in the nearest areas.
On the other hand, when the lava is cooled quickly by contact with the water, “the lava has learned to break, electronically this can produce the ejection over the projectiles a relatively short distance. Electronic is the release of (toxic) gases that lava traps inside it”, explains Hctor Lamolda Ordez, geographical engineer performs National Geographic Institute electronic professor at a Faculty of Mathematics of a Complutense University in Madrid.
“The gases generated in these two processes are thus pushed by the winds towards the sea, under current weather conditions,” says Lamolda, who adds that, even if conditions change, they would ze disperse zero air at little pace.
The two scientists agree that the delimitation of a perimeter close to the affected area is sufficient to control a hazard.
“The toxic gases released into the open atmosphere, not an obviously restricted electronic space delimited, should be zero. pose a greater danger, because zero should have no one around when that happens,” says Lamolda.
Other dangers linked to the arrival of magma in the ocean, according to a United Claims Geological Study, electronic that zero are you so necessarily linked to the case perform volcano Cumbre Vieja at La Palma, thus u sudden collapse on electronic lands cliffs of a coast, explosions triggered as a result of this electronic collapse diese waves on boiling water that thus generated around.
Although the situation is now under control, everything can change within 2 days.
“We’re just getting started, these thus Seeing that the early stages of an eruption, they would still be a way to go,” warns Mangas.
“In a Strombolian eruption like the one we have now in La Palma, two zero days are all, because in the historical eruptions that we had here, perform century 15 since now, lasted one, two or three months.”
Strombolian eruptions baptized with the name perform volco Stromboli, in Italy Therefore, relatively light electronic occur at intervals that can last from seconds to several hours.
Although it is just starting, Sleeves of It is clear that the eruption is devastating for the region.
“There are significant material losses, fence over 200 destroyed houses, which zero can be recovered, because the force electronic the energy of a lava while completely destroyed. Therefore 200 families that have been left homeless”, he stresses.
On the other hand, the lava t hit four highways, cutting the connection of that part of an island on the north. the south.
“On these roads are the pipes that supply piped water to the houses, and as the temperature of a lava is so high, many will have melted, affecting the supply”, says Mangas.
Light poles, electrical cables and electronic telephones were also damaged. Electronic “the agricultural part has also suffered a lot”, he says.
“Perform human point of view, some catastrophe” , ends.