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Natur Halowerk Earthquake Sequence Clustering
x402
Natur Halowerk Earthquake Sequence Clustering is a paid API for AI agents from natur.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Clusters earthquake events close in space and time into sequences using single-link clustering, returning the strongest event, preceding and following events, duration, spatial extent, magnitude range, and daily event rate.
Price / call$0.005
Success—
StatusUnknown
How this service works
Clusters earthquakes that are close in space and time into sequences, using a single-link approach with an explicit distance and time threshold that both appear in the result. For each sequence you get the strongest event, the events that preceded it and those that followed, the duration, the spatial extent, the magnitude range and the rate of events per day. The naming is deliberate: the fields are before_strongest and after_strongest, not foreshocks and aftershocks.
Output
Returns one or more earthquake sequences, each containing: the strongest event in the sequence, the list of events that occurred before the strongest (before_strongest) and after it (after_strongest), the total sequence duration, the spatial extent in kilometers, the magnitude range from smallest to largest, and the rate of events per day. Distance and time thresholds used for clustering are also reflected in the result.
Example use cases
Post-earthquake swarm analysis
“I have a list of earthquakes from the last 30 days in Turkey — can you cluster them into sequences with a 30 km distance threshold and a 5-day time window, and tell me the strongest event in each sequence along with how many events preceded and followed it?”
Seismic hazard research workflow
“Take these USGS earthquake records for the Pacific Northwest and group them into sequences using a 20 km spatial threshold and a 3-day time threshold — I need the magnitude range, spatial extent, and events-per-day rate for each cluster.”
Aftershock sequence monitoring
“After today's M6.2 event in Japan, can you cluster the surrounding seismicity into sequences with a 40 km distance and 10-day time window and show me what came before and after the strongest event in each group?”
Technical details
Endpoint
POSThttps://natur.halowerk.com/v1/quake-sequenceWhen to prefer
Choose this endpoint when you need to group raw earthquake event data into meaningful temporal-spatial sequences and characterize each cluster by its strongest event, event ordering, duration, and rate. It is preferable over a single-event lookup when you need swarm or sequence-level analysis rather than individual event detail, and over generic clustering tools when you specifically need seismological output fields like before_strongest/after_strongest, spatial extent, and daily rate.
Side effects
- Insufficient events provided to form meaningful clusters
- Distance or time thresholds too tight — no sequences formed
- Invalid or missing threshold parameters
- Malformed event data causing parsing errors
- Events with missing magnitude or coordinate data excluded silently
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| lat | number | |
| lon | number | |
| days | integer | |
| radius_km | number | |
| cluster_km | number | Events closer than this and within cluster_hours are joined. |
| cluster_hours | integer | |
| min_magnitude | number |
Tags
x402
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