Anak Krakatau went off for 25 hours straight. Ash drifted over Indonesia. Officials closed eight airports. People in nearby areas could face health risks. Four volcanoes released eruptions 13 times. The eruption raised concerns about a mega-tsunami. Then a 6.2 earthquake struck Java on Friday. So the volcano and quake deepened the anxiety.
The ash disrupted air travel. It drifted across populated areas. Airports closed for safety reasons. The quake shook Java on Friday. The volcano was still going for more than a day. People nearby struggled to breathe.