Reported by USGS 106 days ago.
It is the 4th strongest of the 191 detections recorded within 20 km of this point since 7 March 2026. The last comparable one was on 20 May 2026. 17 more were recorded here in the fortnight before it.
What the source measured
USGS reported: HVO Kilauea YELLOW/ADVISORY - The Halemaʻumaʻu eruption of Kīlauea is paused. Glow was visible from both eruptive vents overnight. Summit inflation is underway, and forecast models suggest that episode 48 will occur sometime between Sunday, May 24 and Tuesday, May 26.
USGS moved the alert level from WATCH to ADVISORY.
Nearby, since 7 March 2026
- September 4, 2026 · score 18 · 0.0 km
- September 3, 2026 · score 18 · 0.0 km
- September 2, 2026 · score 18 · 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 | 19.4210, -155.2870 |
| Nearest City | Hilo (40 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-21T17:22:34.000Z |
| Source | https://volcanoes.usgs.gov/hans2/view/notice/DOI-USGS-HVO-2026-05-21T18:41:09+00:00 |
Score Breakdown
Technical Details
| VolcanoName | Kilauea |
| VolcanoId | 332010 |
| AlertLevel | ADVISORY |
| ColorCode | YELLOW |
| ObservatoryCode | hvo |
| NvewsThreat | Very 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 for live collection; the monthly chart also counts backfilled detections from 10 February 2024. 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 Kilauea (United States), based on data from usgs_volcano. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.