Pyroclastic flow on Mount Sinabung, Indonesia – July 27, 2015
Effusion of viscous lava continues at slow pace to feed the lava dome with two active lobes on the SE and E upper flanks of Indonesian Sinabung volcano.
At 12:22 local time today, a small part of the eastern lobe collapsed into a medium-sized pyroclastic flow that traveled approximately 2.5 km (1.55 miles) towards the outskirts of the (already evacuated and destroyed) villages of Bekerah and Simacem, Volcano Discovery reports.
Video courtesy of Ingrid Smet / Volcano Discovery.
During July 18 to 19, BNPB reported pyroclastic flows traveled 2.5 -3 km (1.86 miles) E and SE, ash plumes rose as high as 1 km (0.62 miles), and lava was active as far as 1.5 km (0.93 miles) SE. Seismicity was high and the lava dome continued to extrude.
A total of 11 111 people (3 150 families) remained displaced. The Alert Level remained at 4 (on a scale of 1 to 4). Based on satellite images, weather models, and information from PVMBG, the Darwin VAAC reported that during July 18 to 20 explosions generated ash plumes that rose to an altitude of 3.7 km (12 000 ft) a.s.l. and drifted E. White plumes rose 200 m (656 feet) on July 21.
Gunung Sinabung is a Pleistocene-to-Holocene stratovolcano with many lava flows on its flanks. The migration of summit vents along a N-S line gives the summit crater complex an elongated form. The youngest crater of this conical, 2460-m-high andesitic-to-dacitic volcano is at the southern end of the four overlapping summit craters.
An unconfirmed eruption was noted in 1881, and solfataric activity was seen at the summit and upper flanks in 1912.
No confirmed historical eruptions were recorded prior to explosive eruptions during August – September 2010 that produced ash plumes to 5 km above the summit. (GVP)
Featured image: Pyroclastic flows on Mount Sinabung – July 27, 2015. Credit: Ingrid Smet / Volcano Discovery.
If you value what we do here, create your ad-free account and support our journalism.
Your support makes a difference
Dear valued reader,
We hope that our website has been a valuable resource for you.
The reality is that it takes a lot of time, effort, and resources to maintain and grow this website. We rely on the support of readers like you to keep providing high-quality content.
If you have found our website to be helpful, please consider making a contribution to help us continue to bring you the information you need. Your support means the world to us and helps us to keep doing what we love.
Support us by choosing your support level – Silver, Gold or Platinum. Other support options include Patreon pledges and sending us a one-off payment using PayPal.
Thank you for your consideration. Your support is greatly appreciated.
Commenting rules and guidelines
We value the thoughts and opinions of our readers and welcome healthy discussions on our website. In order to maintain a respectful and positive community, we ask that all commenters follow these rules:
We reserve the right to remove any comments that violate these rules. By commenting on our website, you agree to abide by these guidelines. Thank you for helping to create a positive and welcoming environment for all.