Monday 4 December 2023 · below the Index · spike
Houthis attack merchant ships in Red Sea
Houthi forces attacked two merchant ships in the Red Sea on December 3-4, 2023, with missiles and rockets. A British-owned cargo ship was struck by a missile, and the Houthis released video of a cargo ship hijacking. The attacks occurred weeks after earlier Houthi operations in the region.
Peak 83.1 on Monday 4 December 2023. The shaded band is the incident window.
Where the attention came from
Media-led, both over the window and on the peak day. 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 79% of all days since 2020, and the highest since Thursday 30 November 2023.
How far it spread
No vessel type moved — 0 of 6 vessel-type groups drew clearly more readers than usual.
Readers here means readers of the Wikipedia article on each vessel type — the same source as the Research signal, not news coverage — so an incident can dominate the news without moving this panel. 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 98% of coverage shipping was the thing acted upon rather than the actor.
How the coverage sounded
Coverage ran 98% negative overall; 35% strongly so.
Each article is scored on a five-step scale from strongly negative to strongly positive; the bar is the share of coverage at each step.
Sample of the headlines
- Houthis Take Responsibility for Attacking Two Merchant Ships in the Red Seamaritime-executive.com · 2023-12-03
- British merchant ship struck by missile in Red Sea attackpenarthtimes.co.uk · 2023-12-04
- Unity Explorer: British merchant ship hit by missile in attack by Iranian-backed Houthi rebels in Red Seaportsmouth.co.uk · 2023-12-04
- Houthis assault cargo ships | The Arkansas Democrat-Gazette - Arkansas' Best News Sourcearkansasonline.com · 2023-12-04
- U.S. says Iran responsible for Sunday's attacks on merchant ships in the Red Seawashingtontimes.com · 2023-12-04
- British Merchant Ship Sustains Damage In Houthi Attackoilprice.com · 2023-12-04
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
- Registered in a single underlying series only — one vessel-type article, news term or social query — and never moved the Index itself.
- The coverage panels count only articles matched to this incident specifically.
Maritime Attention Index, incident: Houthis attack merchant ships in Red Sea, peak 83.1 on 4 December 2023. maritimeattentionindex.com/incidents/2023-houthis-attack-merchant-ships-in-red-sea/