Permanent Prediction Record
×
Window Elapsed
No Match Found
The forecast window has closed. No qualifying seismic event was recorded within the predicted parameters.
Predicted Magnitude
M2.5
3.1 miles North of Portola
Original Prediction Parameters
Predicted Location
3.1 miles North of Portola
39.8543°N, 120.4600°W
Forecast Time Window
20th of May 2026
May 20, 2026 06:52:27 PST
Predicted Magnitude
M2.5
Predicted value
Focal Depth
3.4 km
Below surface
Prediction Type
Prospective
Live forward-issued before the event
Lead Time
190h 2m
Advance notice before predicted event time
Location Map
Predicted epicentre
Nearest Recorded Event
⚠ Preliminary - subject to revision when the pipeline confirms the result
This is the recorded earthquake closest to qualifying. It fell outside one or more tolerances, so the prediction is graded a false positive. Parameters within tolerance are shown in green; those outside are in red.
Distance Error
134.0 km
34.0 km over 100 km limit
Time Error
14.5 h
Within 36 h tolerance
Magnitude Error
0.21
Predicted M2.49 vs actual M2.7
Depth Error
13.8 km
Pred. 3.4 km vs actual 10.4 km
Nearest Event Location
-
Integrity & Provenance
Integrity Fingerprint (SHA-256)
RETROSPECTIVE
f80ca855e013f2c6187bbcd26eb7e1fdb4692092ad745fd60fb8e9541da14f8b
This prediction was ingested before fingerprinting was introduced. The value above is a retrospective fingerprint computed from the current stored fields - it reflects the current state, not a preserved original snapshot. Future predictions will carry an immutable fingerprint set at ingestion time.
Prediction ID
20260512_014928_pred-39.85--120.46-20260520T0652
Evaluation Protocol
v1
Model Version
v1
Prediction Type
Prospective
Publication Batch (UTC)
May 12, 2026 08:49:33 PST
Source Batch
20260512_014928_prediction_JSON_file.json
First Recorded (UTC)
2026-06-18 07:46:39.167254+00:00
Amendment History
No amendments have been recorded for this prediction. Original values are unchanged.