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Describe how SISTEM detects, associates and sizes earthquakes - #19

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Oct 1, 2026
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Checked the SISTEM pages against grillo-platform main (c6f7e91): services/detector-go, services/event-processor/config.yaml, and the Live page.

  • How Detection Works: new "The steps" section. STA/LTA picking per channel, picks within 3 s merged per station, GaMMA association of P picks at 6 km/s, a candidate from 3 stations and publishing from 4, online stations only, the Grillo-set monitoring region and 100 km depth limit, magnitude from P-wave peak displacement and distance, and values settling about a minute after the last pick. Grillo can exclude a damaged channel from detection.
  • Live Map: the Connected / Connecting / Disconnected indicator, pick beeps, and the four-station threshold.
  • SISTEM overview: requirement now states the four-station minimum; live map mentions simulation.

Event catalog, event details and waveforms pages already matched the code.

npm run build passes.

🤖 Generated with Claude Code

From grillo-platform's detector and event processor: STA/LTA picking,
station merging, GaMMA association of P picks, 3-station candidates and
4-station publishing, live stations only, region and depth limits,
P-wave peak-displacement magnitude, and the one-minute settling time.
Live map now explains its connection indicator and pick beeps.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@andygrillo
andygrillo merged commit ee7fedd into main Oct 1, 2026
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andygrillo deleted the docs/sistem-refresh branch October 1, 2026 16:12
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