HOW IT WORKS

Methodology and limitations

The site combines automated data, official sources and scientific explanation. It does not turn a single number into a closure conclusion.

1

Seismic data

GitHub Actions queries the official USGS API hourly within a fixed area. It stores events, summaries and a daily series.

2

Visual traffic

MarineTraffic loads only on demand. AIS positions are not extracted or counted without a data licence.

3

Stable geology

Width and convergence figures come from official sources and peer-reviewed literature.

4

Human review

Tunnel status and interpretive text are reviewed when new official documents appear.

What the homepage states

“Open passage”

Describes the geographic connection and maritime corridor. It is not a real-time nautical certification.

“Active tectonics”

Summarises regional convergence and known seismicity.

“Not expected on a human timescale”

Indicates there is no scientific closure forecast for decades or centuries.

“X earthquakes”

Count from the queried catalogue, subject to revisions and completeness thresholds.

What we do not do

  • We do not predict earthquakes.
  • We do not infer closure from an empty AIS map.
  • We do not present 4.5 mm/yr as channel narrowing.
  • We do not announce tunnel dates or costs without official documentation.

Update frequency

  • Seismicity: hourly.
  • Seismic history: one daily snapshot.
  • AIS traffic: when the external map is loaded.
  • Geology and project: manual review when new evidence appears.

Public code and data

The site publishes seismicity.json, seismic-history.json y sources.json. The automation retains the last valid result if a source temporarily fails.