This story has been proved to be untrue. It actually contains outright lies.
For example, the article states that the volcano has exploded twice this century eg in 1949. This is a damned lie. The historical facts show that the volcano had a minor eruption in 1949 but that there was absolutely no explosion, it just dribbled lava for a few days. Admitedly you wouldn't want to be in the path of the lava when to creeps its way at snails pace down the hill. There was absolutely NO explosion. There were no lives lost.
In 1971 a similar dribbly spluttery minor eruption happenned and people came from all over the island to watch it. One person died because they got too close while taking photographs.
The article implies that the Cumbre Vieja is not monitored but it IS being monitored, agian they are lying. Actually there has been NO movement detected since 1949. NONE at all.
La Palma is not unstable.
They talk abaout a fault but there is no fault, just some surface cracks which are in fact a shallow fissure.
The calculations they used for the size of the wave are wrong, top scientists have proven that.
La Palma is not going to fall into the sea.
There will be no tsunami.
Bear in mind that the mastermind behind this 'disaster' propaganda is Bill McGuire: "Prophet of doom", or Disasterman as he calls himself. He is the head of a company selling Disaster Insurance, he gets paid to give courses and lectures about all sorts of hypothetical disaster events. He also makes a fortune from science fiction books about The End of the World (look him up on Amazon).