1,800 daily visitors will soon be permitted to Guishan Island

Island off Yilan's coast, also known as Turtle Island, has been closed to visitors for 3 months

Intensity reached 3 on Guishan Island, 2 in parts of New Taipei City

Mount Datun poses largest risk due to its proximity to Taipei

Taipei, New Taipei, Keelung, Yilan lie within range of volcanic events

Taiwans Turtle Island seen withperfect shell

Home to Taiwan's only active volcano is open again to tourists