Iceland's Grindavik volcano - which erupted earlier this week - has shown signs of weakening, although new vents could open at short notice.

The eruption on the Reykjanes peninsula, about 42 km away from the capital Reykjavik, happened after weeks of intense volcanic earthquakes, which prompted authorities to evacuate 4,000 residents from the fishing town of Grindavik.

No reports of injuries have been reported so far, the BBC reported.

Read Also: Iceland Braces for 'Biggest' Volcanic Eruption Anytime, Scientists Warn

One and Done? Iceland's Grindavik Volcano Weakens After Initial Eruption
(Photo: Jeff J Mitchell/Getty Images)

State of the Volcano

The Icelandic Meteorological Office said on Tuesday (December 19) that the eruption "continues to weaken," with aerial images showing three of the original five vents still erupting lava.

Icelandic broadcaster RUV further cited local volcanologist Thorvaldur Thordarson when he said that the eruption could die down before Christmas.

However, the Met Office said that, while the eruption continues, "there is an increased likelihood that more vents may open" along the original fracture, as well as further north or south of the volcano, with "very short" warnings in advance.

Smoke and ash could also be detected as far as 30 km from the eruption site, triggering a pollution warning for Reykjavik.

Related Article: Grindavik Eruption: Iceland Volcano Erupts Weeks After Thousands Evacuate