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Evidence for a Possible Weak 1–2 Year Quasi-Periodic Variability Band in Enceladus Plume Activities
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
Jicheng GU
Jul 11
The Most Dangerous times for Moonquakes within the period of 2026–2036
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 The most dangerous time The most dangerous month Major risk widow Remarks 2027 2/23/2027 4:11 February Late February – Mid-May 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 indicates that the heightened risk associa
GUJEP Editor
Apr 1
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 GUJEP
Dec 29, 2025
Prediction: 4th Release for M7 Earthquake at Cape Mendocino CA (2024-12-05 18:44:21UTC)
Prediction Release ID: PR_2024.12.15_CALIFORNIA.M7.2024.12.05_R4 Release time: 2024.12.15 16:32:00 (UTC) Continue with this Release #4...
GUIEP GUJEP
Dec 15, 2024
Prediction: 3rd Release for M7 Earthquake at Cape Mendocino CA (2024-12-05 18:44:21UTC)
Prediction Release ID: PR_2024.12.07_CALIFORNIA.M7.2024.12.05_R3 Release time: 2024.12.07 04:00:00 (UTC) Continue with this Release #3...
GUIEP GUJEP
Dec 7, 2024
《重修隆德县志》中的”震兆六端”溯源
作者：张思源 《重修隆德县志》 民国二十四年(1935年)十一月完稿的《重修隆德县志》之卷四页51至页52，辑录了震灾方面的有关内容。其中有一段文字在地震学界具很大影响，流传甚广，许多文章都加以引用。著名的地震云专家、日本奈良市市长健田钟三郎、九州大学教授真锅大觉和中国科学...
GUJEP Editor
Feb 12, 2023
Turkey earthquake (Mag 7.8), 3500 dead has been confirmed
Turkish seismologists estimated the strength of the quake to be 7.4 magnitude （USGS estimated mag 7.8). They said that a second tremor...
GUJEP Editor
Feb 6, 2023
The Difference between Earthquake Prediction, Forecasting, and Warning System
Earthquake prediction is a branch of the science of seismology concerned with the specification of the time, location, and magnitude of...
GUJEP Editor
Dec 10, 2022
Pure Theories / Applied Science / Instruments / Others
Evidence for a Possible Weak 1–2 Year Quasi-Periodic Variability Band in Enceladus Plume Activities
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
Jicheng GU
Jul 11
The Most Dangerous times for Moonquakes within the period of 2026–2036
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 The most dangerous time The most dangerous month Major risk widow Remarks 2027 2/23/2027 4:11 February Late February – Mid-May 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 indicates that the heightened risk associa
GUJEP Editor
Apr 1
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 GUJEP
Dec 29, 2025
Prediction: 4th Release for M7 Earthquake at Cape Mendocino CA (2024-12-05 18:44:21UTC)
Prediction Release ID: PR_2024.12.15_CALIFORNIA.M7.2024.12.05_R4 Release time: 2024.12.15 16:32:00 (UTC) Continue with this Release #4...
GUIEP GUJEP
Dec 15, 2024
Prediction: 3rd Release for M7 Earthquake at Cape Mendocino CA (2024-12-05 18:44:21UTC)
Prediction Release ID: PR_2024.12.07_CALIFORNIA.M7.2024.12.05_R3 Release time: 2024.12.07 04:00:00 (UTC) Continue with this Release #3...
GUIEP GUJEP
Dec 7, 2024
《重修隆德县志》中的”震兆六端”溯源
作者：张思源 《重修隆德县志》 民国二十四年(1935年)十一月完稿的《重修隆德县志》之卷四页51至页52，辑录了震灾方面的有关内容。其中有一段文字在地震学界具很大影响，流传甚广，许多文章都加以引用。著名的地震云专家、日本奈良市市长健田钟三郎、九州大学教授真锅大觉和中国科学...
GUJEP Editor
Feb 12, 2023
Birds collide with trees reported in several cities in China
Birds collide with trees in several cities in China.
Max Chen HUANG
Feb 9, 2023
Prediction of the Strong Aftershocks of Turkey Earthquake /Main Shock M=7.0 2020-10-30 11: 51:27 UTC
Prediction report published by GU INSTITUTE OF EARTHQUAKE PREDICTION (GUIEP) in 2020.
GUIEP GUJEP
Feb 6, 2023
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