From 23/09/2025 to 23/09/2025, a Tropical Depression (maximum wind speed of 130 km/h) TWENTYSIX-25 was active in NWPacific. The cyclone affects these countries: China (vulnerability Medium). Estimated population affected by category 1 (120 km/h) wind speeds or higher is 0.157 million .
Green earthquake alert (Magnitude 5.5M, Depth:54.058km) in Kermadec Islands Region 23/09/2025 12:44 UTC, [unknown].
Shishaldin Volcano (United States) activity update Sep 22, 2025 – Unrest
The United States Geological Survey – Alaska Volcano Observatory (USGS-AVO) reported that unrest continued at Shishaldin between 21 September 2025 (local) and 22 September 2025 (local). The alert level remained at „Advisory“ (level 2 on a 4-level scale). The aviation alert level remained at „Yellow“ (level 2 on a 4-level scale).
Source: United States Geological Survey – Alaska Volcano Observatory (USGS-AVO)
Current Alerts:
Observatory alert level: „Advisory“ (level 2 on a 4-level scale)
Aviation Alert Level: „Yellow“ (level 2 on a 4-level scale)
Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Sep 22, 2025
