Iceland’s third volcanic eruption in the span of two months subsided on Friday, with only steam now rising from the snow-covered ground where fountains of bright orange lava had spewed a day earlier. The Icelandic weather authority said that there had been no visible surface-level activity in the past several hours, but that it could not be ruled out that there was still activity in the craters. Even though the eruption has slowed down considerably, it is still too early to speak of its end, the agency said. The number of earthquakes that accompanied the eruption also decreased significantly i…