SERIES · INFRASTRUCTURE & CATASTROPHE RISK
EWI#15 Volcanic / ashfall aviation alerts
Early-warning indicator EWI#15 reads Volcanic / ashfall aviation alerts against a threshold of No major aviation impact, computed every morning from the Dashboard's feeds.
Reading and history
The latest value with its seven- and thirty-day change, the full history on file, and the last thirty observations as a table.
0.00value · 2026-10-28
0Change over seven days · from 2026-10-21
0Change over thirty days · from 2026-09-28
0 volcanic alerts at Orange or RedDashboard reading · threshold No major aviation impactGREEN
The Dashboard reads 0 volcanic alerts at Orange or Red against a threshold of No major aviation impact and shows GREEN. Pathway M8: Travel Risk; cadence daily.
33 OBSERVATIONS · 2026-09-26 TO 2026-10-28GDACS (T2) · DAILY VALUES
The last 30 observations as a table
| Date | Value |
|---|---|
| 2026-10-28 | 0.00 |
| 2026-10-27 | 0.00 |
| 2026-10-26 | 0.00 |
| 2026-10-25 | 0.00 |
| 2026-10-24 | 0.00 |
| 2026-10-23 | 0.00 |
| 2026-10-22 | 0.00 |
| 2026-10-21 | 0.00 |
| 2026-10-20 | 0.00 |
| 2026-10-19 | 0.00 |
| 2026-10-18 | 0.00 |
| 2026-10-17 | 0.00 |
| 2026-10-16 | 0.00 |
| 2026-10-15 | 0.00 |
| 2026-10-14 | 0.00 |
| 2026-10-13 | 1.00 |
| 2026-10-12 | 1.00 |
| 2026-10-11 | 1.00 |
| 2026-10-10 | 1.00 |
| 2026-10-09 | 1.00 |
| 2026-10-08 | 0.00 |
| 2026-10-07 | 0.00 |
| 2026-10-06 | 0.00 |
| 2026-10-05 | 0.00 |
| 2026-10-04 | 0.00 |
| 2026-10-03 | 0.00 |
| 2026-10-02 | 0.00 |
| 2026-10-01 | 0.00 |
| 2026-09-30 | 0.00 |
| 2026-09-29 | 0.00 |
About this series
Where the readings come from, how the source is graded, how often it updates, and what to bear in mind.
SourceGDACS
On the Dashboard: Early Warning tab
On the Dashboard: Early Warning tab
TierT2
CadenceDaily, computed by the AEGEAN-OS M9 model from the Dashboard feeds; nothing is backfilled.
PathwayM8: Travel Risk
CaveatsThresholds are the firm's, per the M9 model, and may be revised; a revision changes future readings only. A GRAY indicator has no live source and is shown so the coverage gap is visible.
Download and cite
The package this series ships in, its checksum, and the citation line.
Packageewi-history · version 2026-10-28
SHA-256 of data.csv
b5b3099d28231634b9d514ab5de7da90e4f832c940efb96537efcc60c843b394Aegean Intelligence Group, "Early-warning indicator history", series EWI#15 Volcanic / ashfall aviation alerts (SER-EWI-15), open data package ewi-history, version 2026-10-28, aegeanintel.com/data/series/ewi-15/. Free to use with attribution; no warranty.
Claims that resolve against this series
Forward claims on the ledger whose outcome is read from these values.
No claim on the ledger resolves against this series yet.