Yellowstone Volcanic-Seismic Activity Status (1984-2025)
Using a consistent spatial window centered on Yellowstone (44.615°N, -110.6°W; radius 80 km), we analyzed the Seismicity Index S time series from 1984-2025 at multiple magnitude thresholds and time scales (annual/monthly/weekly). S exhibits a persistent long-term increase that remains present when smaller earthquakes are excluded (M≥2.0 and M≥2.5). This indicates that the observed intensification is not solely an artifact of small-event catalog completeness.
Importantly, the
GUIEP
Dec 29, 20254 min read
Prediction Release: There Is No More M>7.0 Strong Aftershock After The Main Earthquake (M=7.6 2025-12-08T14:15:10.394Z)
Prediction Report ( QUIEP-PR-251210A) . Released by GUIEP at 2025-12-10 21:15 (UTC). There was a strong earthquake occurred in Japan with M7.6 at 2025-12-08T14:15:10.394Z. With our research, we have made the following judgment: The strong shock (M7.6) occurred at 2025-12-08T14:15:10.394Z is the main shock. The earthquake was a mainshock-aftershock type. There will be no more strong aftershock higher than M7.0 in the coming days after 2025-12-10 21:00 UTC-4 when we made this p
GUIEP
Dec 10, 20251 min read
