A group of tourists visited Anak Krakatau on September 18, 2019, and managed to capture a surprising explosion from a very close distance.
The activity at the volcano has not changed over the past weeks, with intermittent phreatic or phreatomagmatic explosions in the crater lake, Volcano Discovery reports.
Krakatau's seismic network recorded five eruptive events from September 9 to 15, according to PVMBG. A webcam at the summit recorded diffuse white plumes rising 150 m (492 feet) from the bottom of the crater, and dense gray-and-white ash plumes rising 300 m (984 feet).
The Alert Level remains at 2 (on a scale of 1-4), and the public is warned to remain outside of the 2-km-radius (1.2 miles) hazard zone from the crater.
A violent phreatomagmatic eruption took place at the volcano at 02:09 UTC on June 25, 2019, and was also recorded on video:
The renowned volcano Krakatau (frequently misstated as Krakatoa) lies in the Sunda Strait between Java and Sumatra. The collapse of the ancestral Krakatau edifice, perhaps in 416 CE, formed a 7-km-wide (4.3 miles) caldera.
Remnants of this ancestral volcano are preserved in Verlaten and Lang Islands; subsequently Rakata, Danan and Perbuwatan volcanoes were formed, coalescing to create the pre-1883 Krakatau Island. Caldera collapse during the catastrophic 1883 eruption destroyed Danan and Perbuwatan volcanoes, and left only a remnant of Rakata volcano.
This eruption, the 2nd largest in Indonesia during historical time, caused more than 36 000 fatalities, most as a result of devastating tsunamis that swept the adjacent coastlines of Sumatra and Java. Pyroclastic surges traveled 40 km (25 miles) across the Sunda Strait and reached the Sumatra coast.
After a quiescence of less than a half century, the post-collapse cone of Anak Krakatau (Child of Krakatau) was constructed within the 1883 caldera at a point between the former cones of Danan and Perbuwatan. Anak Krakatau has been the site of frequent eruptions since 1927. (GVP)
Featured image credit: Sylvie Loison, John Van Marcke
September 26, 2020
A strong and shallow earthquake registered by the USGS as M6.2 hit south of Africa at 17:10 UTC on September 26, 2020. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting M6.2 at a depth of 2 km (1.2 miles). The epicenter was located about 1 645...
September 21, 2020
Strombolian activity with sporadic ash emissions continues intermittently at Mount Etna's 'saddle crater' since around July 10, 2020. The image below shows strombolian activity at the newest crater, referred to as the 'cono della sella'...
September 18, 2020
A strong and shallow earthquake registered by the USGS as M6.9 hit central Mid-Atlantic Ridge at 21:43 UTC on September 18, 2020. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting M6.7 at a depth of 10 km (6.2 miles). The epicenter was located...
September 15, 2020
At least six people lost their lives in deadly flooding after heavy rains fell for six days across Tunisia. Numerous regions in the country were hit by severe weather, from north to the east. Heavy rains began around September 5, drenching Kairouan with 88.9 mm (3.5...
September 10, 2020
About 200 000 people remain homeless as of September 10, 2020, after severe floods struck the Far North Region of Cameroon. At least five fatalities have been reported, livestock and crops have been affected, and thousands of houses have been damaged or destroyed....