The haze, a phenomenon known as "vog" or volcanic smog, "is spreading across Micronesia," the US National Weather Service based in Guam said. The volcano on Hawaii's Big Island is now in its fourth week of eruptions. Meteorologists advised residents on the Marshall Islands with respiratory problems to stay indoors while airlines and shipping companies were warned to be aware of "lower visibilities". Kilauea is the world's most active volcano and one of five on Hawaii's Big Island. Scientists believe the volcanic activity may be a precursor to a major eruption similar to the one that shook the island in the mid-1920s.

Source: The Nation Bangkok May 27, 2018 23:15 UTC