Enceladus exhibits persistent cryovolcanic plume activity driven by tidal forcing and internal energy dissipation. Previous studies have primarily focused on short-timescale variability, including orbital tidal modulation, plume brightness fluctuations, and local jet dynamics. However, the possibility of longer-timescale organized variability remains insufficiently explored. In this exploratory note, we construct a composite plume activity index (X(t)) from normalized proxies

The Most Dangerous times for Moonquakes within the period of 2026–2036 File#: GUIEP_EP_260401A Release by: GUIEP Release time: 2026-04-01 10:00AM(EST-4) Year 年份 The most dangerous time 最强中心时刻 The most dangerous month 最危险月份 Major risk widow 主危险期范围 Remarks 说明 2027 2/23/2027 4:11 February/2月 Late February – Mid-May 2月下旬–5月中旬 The single most critical point falls on February 23rd; this same danger zone also encompasses dates such as February 9th, March 8th, and May 15th. This ind

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

Abstract: Earthquakes are naturally occurring phenomena that are unpredictable and have a significant destructive potential. Human...