The Gran Canarian palms
The technical director of the Canary Islands Volcanic Emergency Plan (Pevolca), Miguel Angel Morcuende, stressed that the stoppage of activity and the reduction in intensity of the La Palma volcano “is not surprising” because it is something «Normal in strombolian fissure volcano eruptions»Which has« continuities and discontinuities ».
This sudden drop in intensity surprised all the inhabitants, neighbors and visitors who for two hours they stopped hearing the roar from the Cumbre Vieja volcano, which has been going non-stop for a second since last Sunday at 3:12 pm, but not to the experts, who value it as “usual” and the result of a “magmatic readjustment”.
This can be caused by a change in conduit, with a decrease in gas content and less material available below the entrance to the system, among other hypotheses.
In the southern area, of Jedey and Fuentaliente, seismic activity has been reactivated, although the neighbors, for the most part, have not felt it. The tremor signal has dropped in recent hours, in a seismic swarm that is located in the same areas and depths as the initial one registered since September 11. The first of the stops in its strombolian activity it occurred at 4.10 in the morning and lasted for 20 minutes.
The stream that runs north of the volcanic cone accelerated last night, moving rapidly and overtaking the Todoque roundabout in its advance to the sea. With it, he led materials to the north of the Todoque mountain, where when he encountered a slope, he modified his route and went around the south of the mountain. Those two streams that have separated the mountain, one of them slowed down due to a trough, are expected to rejoin once they overcome it.
300 confined neighbors
In addition, there are still two streams: the southern one has very low speeds and the northern one has been divided into two fingers – the one that goes to the north is facing a significant slope and has slowed down and probably rounds the Todoque mountain to rejoin the one that goes to the south, where they will converge-, as Blanco has stated.
However, given the possibility that the lava reaches the coast and causes a thermal shock, with explosions and vaporization of certain gases, including hydrochloric acid, the steering committee of the Canary Islands Volcanic Emergency Plan (Pevolca), decided to proceed. to the confinement of some 300 people in San Borondón, Marina Alta, Marina Baja and La Condesa.
The air quality La Palma, on the other hand, “is good and there is no danger to health” but in a preventive way, confinement has been requested before the arrival of the lava and the term shock that occurs in its link with the Atlantic. Even so, the technical director of Involcán points out that the closest to this place of the four confined populations is more than three kilometers away, so the condition would be “minimal”, basically “small problems in the eyes and bronchi.” A cloud with these gases “would quickly dilute”, so it is more of a preventive action than a dangerous one.
The 5,600 people initially evacuated were joined by 160 people from Tacande de Arriba y Abajo and Tajuya, who have already been able to return to their homes, joined by the now confined, around 300 people.
Right now there are security guarantees and from this committee they ask the population for attention to the official information channels.
For her part, the director of the National Geological Institute (IGN), María José Blanco, has ruled out acid rain for the next 24 hours and has indicated that the activity of the volcano could “have pulses of more or less intensity.”
The volume of material in casting and in the volcanic cone, as indicated by Blanco, is 46.3 million cubic meters, thus surpassing the 43 that the Teneguía volcano expelled in 1971.
For its part, deformation of the bark of La Palma, remains stable in its horizontal line and decreasing in its vertical.
The lava from the volcano already has affected 513 homes and an area of 237.5 hectares, an increase of 27.5 in 24 hours, as noted by the Copernicus monitoring program, which points to 18.9 kilometers of destroyed roads.
The area covered in ashes are already 1,507 hectares and they have already reached the palm capital, Santa Cruz de La Palma. Firefighters and different work teams have worked house to house in evacuated areas to free roofs from the weight of this ash, which can cause landslides.
George is Digismak’s reported cum editor with 13 years of experience in Journalism