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
3.9 miles East of Brentwood
Original Prediction Parameters
Predicted Location
3.9 miles East of Brentwood
37.9104°N, 121.6287°W
Forecast Time Window
31st of July 2026
Jul 31, 2026 08:47:02 PST
Predicted Magnitude
M2.5
Predicted value
Focal Depth
7.6 km
Below surface
Prediction Type
Prospective
Live forward-issued before the event
Lead Time
12h 54m
Advance notice before predicted event time
Location Map
Predicted epicentre
Matched Earthquake
⚠ Preliminary - subject to revision when the pipeline confirms the result
A recorded earthquake fell within every matching tolerance, so this prediction is graded a true positive. Each parameter below shows how close the match was.
Distance Error
106.0 km
Within 125 km tolerance
Time Error
11.3 h
Within 48 h tolerance
Magnitude Error
0.43
Predicted M2.47 vs actual M2.9
Depth Error
12.6 km
Pred. 7.6 km vs actual 5.0 km
Matched Event Location
-
Integrity & Provenance
Integrity Fingerprint (SHA-256)
RETROSPECTIVE
e6c45624229a93b219e0685593232efe1dc8e2c6e4361b92865fe004356ff710
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
loc-37.91--121.63-t10332
Evaluation Protocol
v1
Model Version
v1
Prediction Type
Prospective
Publication Batch (UTC)
Jul 30, 2026 19:52:08 PST
Source Batch
20260730_103142_prediction_JSON_file.json
First Recorded (UTC)
2026-07-30 19:52:09.559882+00:00
Amendment History
No amendments have been recorded for this prediction. Original values are unchanged.