Research and Application News
The Copernicus EMS Monitors the Effects of Volcanic Eruption and Tsunami in Indonesia
08 January 2019
On 22 December the Anak Krakatau volcano, located about 50 km West of Java, in the Sunda Strait of Indonesia, erupted and partially collapsed. The volcano was reduced from 338 m to the 110 m of height, according to the Indonesia's Center of Volcanology and Geological Hazard Mitigation press release. The undersea landslide caused by the eruption triggered a tsunami which hit the coastal areas around the Sunda Strait between Java and Sumatra islands of Indonesia. As of 28 December, the National Disaster Management Agency reported 426 casualties, over 7,000 people injured and over 40,000 people displaced.
The Copernicus EMS Rapid Mapping component was activated on 23 December to produce emergency maps over several Areas of Interest (AoIs) on the west coast of Java island, the south coast of Sumatra and over the volcano island. Persistent cloud cover hampered the acquisition of optical imagery for almost a week. Only on 29 December Sentinel-2 provided a first visual of the volcano island. The requested maps included one delineation map showing the changes to the Anak Krakatau island area from 288.7 ha to 295.6 ha after the disaster as part of the volcanic island collapsed while the mud and lava flow extended the island in other areas.
Image credit: Copernicus EMS © 2019 EU - The AoIs identified for emergency map production