Anak Krakatau continued its eruption for 25 hours straight. Ash spread across Indonesia. Officials halted operations at eight airports. People in nearby areas may develop breathing issues. Four volcanoes went off 13 times. The eruption stoked fears of a mega-tsunami. Then a 6.2 earthquake rocked Java on Friday. So the volcano and quake added to the unease.

The ash snarled flights. It moved over inhabited regions. Airports were shut as a precaution. The quake shook Java on Friday. The volcano was still going for more than a day. People nearby suffered respiratory trouble.