FEARS Canary Islands’ most active volcano could blow have increased after the region was hit by 10 more earthquakes.
The islands of La Palma, Tenerife and Gran Canaria have now been rocked by 50 tremors after a “swarm of seismic” movement of low magnitude between 1.5 and 2.7 were measured.
But overnight and into dawn, 10 more tremors were recorded from the huge Cumbre Vieja volcano, which sits on La Palma.
One of them reported a magnitude of 2.1, which took place just after midnight.
A 2.8-magnitude earthquake was also recorded in the northwest of the Canary Island of Gran Canaria, according to the National Geographic Institute (IGN).
The seismic movement took place just before midnight on Tuesday at 23 kilometres deep and northwest of La Aldea de San Nicolás.
The shocking rise in such a short amount of time has prompted volcano experts from the Volcanological Institute of the Canary Islands (Involcan) to intensify surveillance on the islands.
Aerial images show white plumes of smoke as they stream out from the volcano's crater.
Holiday destinations including La Palma, Tenerife and Gran Canaria have been identified in the maps, where red triangles show where earthquakes have hit.
They have been recorded by the Volcanological Institute of the Canary Islands (Involcan) in Tenerife on Tuesday at 6.38am (local time) near the coast of Los Cristiano.
A magnitude of 3.6 and the depth of the hypocentre, indicated by a blue star, is about 15 km.