Volcanic Eruptions at Atka volcanic complex
Reported by USGS 171 days ago.
No stronger detection stands among the 32 recorded within 20 km of this point since 15 March 2026 — 31 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
USGS reported: AVO Atka volcanic complex YELLOW/ADVISORY - Seismic activity has declined but remains slightly elevated. SO2 gas detected in satellite data
USGS moved the alert level from WATCH to ADVISORY.
Nearby, since 15 March 2026
- April 13, 2026 · score 20 · 0.0 km
- April 12, 2026 · score 20 · 0.0 km
- April 11, 2026 · score 20 · 0.0 km
How we know
One source: USGS. Not yet confirmed by a second, independent source.
Our own score for this event is 20 out of 100, at 62 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Volcanic Eruptions |
| Severity | Medium |
| Calamity Score (ours) | 20 / 100 |
| Our confidence | 62% |
| Coordinates | 52.3309, -174.1390 |
| Nearest City | Anadyr (1459 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-15T17:54:30.000Z |
| Source | https://volcanoes.usgs.gov/hans2/view/notice/DOI-USGS-AVO-2026-03-15T18:30:21+00:00 |
Score Breakdown
Technical Details
| VolcanoName | Atka volcanic complex |
| VolcanoId | 311160 |
| AlertLevel | ADVISORY |
| ColorCode | YELLOW |
| ObservatoryCode | avo |
| NvewsThreat | High Threat |
| PreviousAlertLevel | WATCH |
| PreviousColorCode | ORANGE |
Safety Information
During volcanic activity: follow evacuation orders from authorities. Volcanic ash can damage lungs — wear N95 masks or wet cloth over nose and mouth. Stay indoors during ashfall, close windows, and avoid driving. Lahars and pyroclastic flows can travel at high speeds — stay away from valleys and river channels near the volcano.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a volcano event with CalamityScore 20/100, at Atka volcanic complex, based on data from usgs_volcano. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.