USGS CATALOG
Earthquakes from the official USGS feed
Loading USGS data…
Waiting for USGS…
| Magnitude | Place | UTC time | Depth | Distance | USGS event ID | Waveforms |
|---|---|---|---|---|---|---|
| Loading… | ||||||
Distances use an approximate sensor location; the street address is not stored. Catalog agreement confirms the USGS data retrieval only. A matching time in the local CSV is evidence for comparison, not proof that this Pi detected that earthquake.
UTC-ALIGNED COMPARISON
Waveform comparison
Semi-synthetic sensitivity result
| Injected signal / noise | Filtered SNR | STA/LTA peak | Threshold 3.0 |
|---|
Traces are normalized independently to compare timing and shape. Different instruments, mounting, sample rates, and frequency responses mean that visual similarity alone does not prove earthquake detection.