Right now
The most recent data we hold from GVP arrived 11 hours ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
Reported by GVP 7 days ago.
It is the 6th strongest of the 10 detections recorded within 20 km of this point since 6 July 2026. The last comparable one was on 8 September 2026. 3 more were recorded here in the fortnight before it.
What the source measured
GVP reported: The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported ongoing eruptive activity at Krakatau during 9-16 September. During 6-11 September there were 14 Strombolian eruptions reported. There was one eruption detected on a seismograph at 0047 on 9 September, but it was not visually con...
Urban PEI: 446,832 within a heuristic 100 km radius; not unique people.
Nearby, since 6 July 2026
- September 8, 2026 · score 53 · 0.0 km
- August 27, 2026 · score 41 · 0.1 km
- August 20, 2026 · score 41 · 0.1 km
How we know
One source: GVP. Not yet confirmed by a second, independent source.
Our own score for this event is 35 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Volcanic Eruptions |
| Severity | High |
| Calamity Score (ours) | 35 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | -6.1009, 105.4233 |
| Nearest City | Labuan (55 km) |
| Urban exposure index (PEI) | 446.8K within 100 km |
| Impact Tier | severe |
| Timestamp | 2026-09-17T05:20:04.000Z |
| Source | https://volcano.si.edu/reports_weekly.cfm |
Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: gvp. Occurrence: 2026-09-17T05:20:04.000Z.
First archived: 2026-09-24T10:03:19.836Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| PubDate | Thu, 17 Sep 2026 01:20:04 -0400 |
| FeedUrl | https://volcano.si.edu/news/WeeklyVolcanoRSS.xml |
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.
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