Wednesday 13 September 2023 · below the Index · spike
Ukraine strikes Crimean shipyard, damages ships
On September 13, 2023, Ukraine attacked a Russian military shipyard in Sevastopol, Crimea, causing a fire, damaging two ships, and injuring 24 people. The incident occurred amid ongoing Russia-Ukraine conflict and drew significant international media attention.
Peak 84.4 on Sunday 17 September 2023. The shaded band is the incident window.
Where the attention came from
Over the whole window this ran Mixed-led; on the peak day itself it read Public curiosity-led. When the two differ, the fast signals (social, news) spiked and faded while the slow ones (search, research) carried the tail. Social here is X alone — Bluesky only joins the series from July 2024 — so its level isn't directly comparable with today's series, though its share of this incident is real.
Bar = share of the extra attention over the whole window; the tick marks the share on the peak day alone, where the two differ.
How unusual it was
This was above 82% of all days since 2020, and the highest since Sunday 6 August 2023.
How far it spread
No vessel type moved — 0 of 6 vessel-type groups drew clearly more readers than usual.
Bars start at 1× — normal readership for that vessel type, the weeks before the incident. Grey = no clear lift. "Over time" shows each group's daily readers through the window; "All 12 articles" breaks the six groups back into their members.
How it was framed the frame glossary →
Lead frame: geopolitical pawn. Trade press was 1% of in-scope coverage — the story had left the trade press and gone mainstream. (Historical coverage is scored on headlines only.)
Acting, or acted upon
In 87% of coverage shipping was the thing acted upon rather than the actor; 1% of it was strongly negative in tone.
What the coverage said
- Crimea: Ukraine launches huge missile attack on Sevastopol shipyardcnn.com · 2023-09-13
- Russia-Ukraine war live: Kim Jong-un pledges to support Moscow 'in fight against imperialism'; Crimea shipyard hit | Ukrainetheguardian.com · 2023-09-13
- Russia says Sevastopol shipyard on fire, two ships damaged in Ukraine missile attackabc.net.au · 2023-09-13
- Ukrainian attack on shipyard in Crimea damages two vessels, wounds 24 people, Russia saystheglobeandmail.com · 2023-09-13
- Russia Reports Fire at Sevastopol Shipyard After Missile Strikebloomberg.com · 2023-09-13
- Ukraine missiles attack Crimean shipyard, damage two vesselstradewindsnews.com · 2023-09-13
Gold rule = a national or international outlet, not a trade title.
- social = X only before Bluesky (2024-07-01); not comparable with today's series
- tier C: only a Wikipedia article, GDELT sub-vocabulary term, or social per-term query fired — not yet confirmed as a real maritime incident (Phase C naming/is_maritime_incident does that).
- integrated and peak-day verdicts differ (smoothing artefact likely)
- coverage scored on title only (no excerpt) — measured ~8pp frame precision cost vs title+excerpt (docs/HANDOVER-incidents.md §2.3)
- coverage filtered to articles matching this incident specifically (345/794 kept) — see coverage.filter.terms
Maritime Attention Index, incident: Ukraine strikes Crimean shipyard, damages ships, peak 84.4 on 17 September 2023. maritimeattentionindex.com/incidents/2023-ukraine-strikes-crimean-shipyard-damages-ships/