Semisopochnoi (CETU camera) webcam — United States
Working, checked 74 min ago Still image · every 10 min Volcano · Official source · What camera types mean

What you are looking at
This CETU camera is on Semisopochnoi Island, at about 315 m (1,040 feet), roughly 7 km (4.5 miles) northwest of the island's center. It looks east-southeast across dark, rolling slopes toward Mount Cerberus inside the caldera, which appears as a low, dark cone with smaller peaks on either side under a wide Aleutian sky.
Mount Cerberus has been the main source of Semisopochnoi's eruptions in recent years, with intermittent ash explosions since 2018. Because the island is far from towns, its main hazard is to aircraft flying the North Pacific routes. Together with the CEPE camera on the other side, this view helps AVO confirm ash emissions seen on satellite. Check the Alaska Volcano Observatory Semisopochnoi page for the current alert level.
Expect a new still roughly every ten minutes. Sunset light from behind the camera can make the cones stand out sharply; fog and low cloud often hide them. Winter snow makes dark ash deposits easier to spot. Tip: on clear days, compare both Semisopochnoi cameras to see Cerberus from two sides.
Camera details
- Camera ID
- semi_cetu
- Operator
- Alaska Volcano Observatory (USGS)
- Name at the provider
- Semisopochnoi [CETU, 1041 ft]
- Volcano
- Semisopochnoi
- Volcano number (Smithsonian GVP)
- 311060
- Elevation
- 317 m / 1,040 ft
- Camera faces
- Southeast (115°)
- Image updates
- Every 10 min
- Video format
- Still image (JPEG)
- Position
- Exact (from the provider)
- Licence
- U.S. public domain
- Data source
- USGS volcano webcams
- Last checked
- 01:30 UTC (74 min ago)
- Working, last 7 days
- 100 % of checks
From the provider's own camera list and our automatic checks. Readings and details can change without notice.
On the map
Nearby live views
The nearest other cameras are Semisopochnoi (CEPE camera) (6.6 mi).
Camera radar centered here · More from USGS volcano observatories
Questions about Semisopochnoi (CETU camera)
Can I watch Semisopochnoi (CETU camera) live right now?
Yes, it is working: at our last automatic check (Oct 8, 01:30 UTC) it was sending new pictures. It is a still image, not video: a new photo arrives about every 10 minutes straight from Alaska Volcano Observatory (USGS).
Where does this camera come from?
Alaska Volcano Observatory (USGS) runs this camera, as part of the U.S. Geological Survey (USGS) Volcano Hazards Program. It is an official source. Its images are in the U.S. public domain. LiveLocation shows them straight from the source with credit. About USGS volcano observatories Watch at the source
Where is the Semisopochnoi (CETU camera) camera?
It is in United States. Coordinates: 51.965, 179.492.
Is it day or night there now?
The camera is in the America/Adak time zone. The "Right now" panel above shows the local time live. On October 7 the sun rises at 9:12 AM and sets at 8:27 PM there.
Can I see other cameras nearby?
Yes: 1 other camera is within 25 miles of this one. The live camera radar shows them all on a map, nearest first. Open the radar here
Where can I check the alert level for this volcano?
Alaska Volcano Observatory (USGS) sets the U.S. Volcano Alert Level and Aviation Color Code for this volcano, not LiveLocation. Read its latest update before you plan a visit; the camera alone cannot tell you how safe it is. USGS volcano updates Official camera page
What do the sensors at Semisopochnoi (CETU camera) show?
The latest readings from the provider: Volcano alert level: NORMAL · aviation code GREEN; Last USGS notice: Feb 27, 10:55 local time; Issued by: Alaska Volcano Observatory (USGS). They update with the provider's data, so they can be a few minutes old.
