The death toll from the massive earthquake in southwest Pakistan this week has risen to 327 with fears it could rise even further.

The 7.7-magnitude quake hit on Tuesday afternoon flattening homes and affecting more than 300,000 people in six districts.

The earthquake struck the province of Balochistan on at 12.29pm on Tuesday afternoon. The region is prone to earthquakes, with at least 35 killed in a 7.8-magnitude quake in April. 

Irish Seismometers in Donegal, Wexford, Kerry, Galway and Dublin recorded the quake, seen as one of the strongest to occur in the world this year. 

The tremor also created a new island around 200 metres in length.