A series of multiple small earthquakes that have been rattling a mid-Atlantic Portuguese island for three days could trigger a stronger tremor or a volcanic eruption, experts said on Tuesday, as authorities urged people not to travel there.
The number of earthquakes recorded on the volcanic island of Sao Jorge, in the Azores archipelago, since Saturday afternoon has increased to around 1,800 from an earlier figure of 1,329, said Rui Marques, head of the region's CIVISA seismo-volcanic surveillance centre.
