Volcanic Eruptions at Atka volcanic complex
Reported by USGS 169 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. The last comparable one was on 18 March 2026. 6 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. Sulfur dioxide and elevated surface temperatures 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 | 2026-03-19T19:55:13.000Z |
| Source | https://volcanoes.usgs.gov/hans2/view/notice/DOI-USGS-AVO-2026-03-19T20:47:52+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.