USGS Earthquake Feed Monitor

How it works

This LoT Notebook polls the free USGS past-hour GeoJSON feed every minute, then validates, deduplicates, and fans out the latest earthquake data on Coreflux. It publishes per-quake detail documents, a rolling hourly count, and change topics for new events and major alerts.

Key features

• REST_API polling: Pulls all_hour.geojson from USGS on a 60-second cadence.
• Dedup by event id: Uses state/last_id so events/quake only fires for new quakes.
• Major quake alerts: Compares magnitude against config/alert_magnitude with a default of 5.0.
• Per-quake model output: Publishes QuakeDetail documents at quake/<id>/detail.
• Hourly report: Builds a collapsed QuakeReport at reports/summary.

Prerequisites

• Internet egress from Coreflux
• REST_API route support
• No API key required

Setup

1. Deploy the QuakeFeed, QuakePollClock, QuakeFeedGate, QuakeDigest, and report cells.
2. Leave feed/enabled at 1 to keep polling, or set it to 0 to pause.
3. Optionally change config/alert_magnitude to tune major-event alerts.
4. For broader coverage, copy the slot digest actions and raise the feature index.