Indonesia on Thursday raised the danger level for an island volcano that triggered a tsunami over the weekend, killing at least 430 people in Sumatra and Java, and widened its no-go zone.
The volcanology agency raised the Anak Krakatau volcano’s alert status to the second highest and more than doubled the exclusion zone to a 5-kilometer radius.
The eruption on Saturday evening caused part of the island in the Sunda Strait to collapse into the sea, apparently generating tsunami waves of more than 2 meters. Most tsunamis are caused by earthquakes.
Heavy rains and high seas have hampered the search effort. Some bodies were found at sea and at least 159 people are missing.
On Thursday, residents of badly affected Banten province in Java were combing through the debris of destroyed or damaged homes for anything salvageable.
Radar data from satellites, converted into images, shows the Anak Krakatau volcano is dramatically smaller following Saturday’s eruption.
Satellite photos aren’t available because of cloud cover but radar images from a Japan Aerospace Exploration Agency satellite taken before and after the eruption show the volcano’s southwestern flank has disappeared.