Contact | RSS | EN | DE | EL | ES | FR | IT | RU

Semisopochnoi Volcano Volcanic Ash Advisory: ERUPTED AT APPROXIMATELY 20211021/2115Z. to 8000 ft (2400 m)

Fri, 22 Oct 2021, 00:30
00:30 AM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 and is moving at 40 kts in SE direction.
The full report is as follows:

FVAK21 at 00:26 UTC, 22/10/21 from PAWU
VAAAK1
VA ADVISORY

DTG: 20211022/0020Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT [1221 M]

ADVISORY NR: 2021/169

INFO SOURCE: HIMAWARI/WEBCAM.

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: ERUPTED AT APPROXIMATELY 20211021/2115Z.

OBS VA DTG: 22/0020Z

OBS VA CLD: SFC/FL080 N5205 E17943 - N5100 W17627 - N5019 W17730
- N5150 E17925 - N5205 E17943 MOV SE 40KT

FCST VA CLD +6HR: 22/0620Z SFC/FL080 N5205 E17943 - N5100 W17628
- N5021 W17731 - N5149 E17926 - N5205 E17943 - N5205 E17943

FCST VA CLD +12HR: 22/1220Z NO VA EXP

FCST VA CLD +18HR: 22/1820Z NO VA EXP

RMK: VOLCANO ERUPTED AT APPROXIMATELY 2115Z PER SATELLITE AND WEBCAM
IMAGERY. A FAINT STREAM OF VA EMISSIONS CAN STILL BE OBSERVED ON
HIMAWARI ASH AND DUST RGB IMAGERY AS WELL AS ON NEARBY WEBCAMS...NS

NXT ADVISORY: WILL BE ISSUED BY 20211022/0620Z

Previous news

Wed, 20 Oct 2021, 06:00

Semisopochnoi volcano (Aleutian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 20 October-26 October 2021 (Continuing Activity)

AVO reported that eruptive activity at Semisopochnoi's North Cerberus crater continued during 19-26 October. Tremor and multiple minor explosions were detected daily in seismic and infrasound data. Although weather clouds often prevented webcam and satellite views, intermittent, low-level ash emissions were visible during clear weather rising to altitudes up to 3 km (10,000 ft a.s.l.); the farthest plume drifted 250 km on 19 October. ... Read all
Show more
Stratovolcano 1221 m / 4,006 ft
United States, Aleutian Islands, 51.93°N / 179.58°E
Current status: restless (2 out of 5) Semisopochnoi volcano eruptions:
2021, 2020, 2019, 2018, 1987
Typical eruption style
unspecified
Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

More on VolcanoDiscovery

Support us - Help us upgrade our services!

We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Design upgrade
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.
Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.
Volcanoes & Earthquakes
VolcanoDiscovery Home
Volcanoes | Earthquakes | Photos | Volcano News | App
Adventure & Study Travel
Tours to Volcanoes and Volcanic Areas: walking tours, photo tours, study tours
Tours & Dates | FAQ | About us
Get our newsletter!
Company info
Contact | Legal info | Terms & conditions
Follow us
Follow us on facebook Follow us on Instagram Follow us on Twitter Visit our Youtube channel
EN | DE | EL | ES | FR | IT | RU
VolcanoDiscovery GmbH, Germany, Reg. nr.: HRB 103744, EU Tax Id: DE 310 395 322 owned and created by
Dr. Tom Pfeiffer, volcanologist, volcano photographer, tour organizer member of
IAVCEI
Volcanological Society
Ecotourism Greece
Insured by R+V
VolcanoDiscovery © 2004- All Rights Reserved | Privacy - cookie settings