Krakatoa volcano (Sunda Strait, Indonesia): new cracks found on the island raise fears about possible new landslide and tsunami
Sat, 5 Jan 2019, 11:4711:47 AM | BY: T
While activity continues at Anak Krakatau island with little changes over the past day, Indonesia's Meteorology, Climatology and Geophysics Agency (BMKG) published a worrying observation: new cracks were discovered that run through the remaining island. It is feared that these could be precursory signs of new, potentially large-scale landslide events that could in turn trigger another tsunami.
Krakatoa seen this afternoon at sunset - the plume from Anak Krakatau is visible as a dark looming shadow (image: VSI webcam)
According to the Head of BMKG, Dwikorita Karnawati, there are two new cracks in a straight line on one side of the Anak Krakatau island, possibly caused by the continuous shaking of the island due to the violent explosions occurring during the past 2 weeks since the catastrophic landslide on 22 Dec.
According to a news article, the new cracks are deep and emits steam and ash. If another collapse occurs along these cracks, it could involve a volume of estimated 67 million cubic meters of material. Even though it is a bit less than what the avalanche on 22 Dec removed (estimated to be around 90 mio cu m), it could still trigger a dangerous tsunami.
Links / Sources:
Links / Sources:
- Ditemukan Retakan Baru di Krakatau, BMKG Imbau Warga Waspada Tsunami Susulan (National Geographic Indonesia)
Sat, 5 Jan 2019, 10:30
Krakatau Volcano Volcanic Ash Advisory: VA TO FL450 MOV WSW, VA TO FL300 MOV ESE EST VA DTG: 05/1030Z to 45000 ft (13700 m)