Geomagnetic Storm Watches in Effect, to include G4 (Severe) potential for 12 November. The current list of Watches include: 11 Nov G2 (Moderate); 12 Nov G4 (Severe); and 13 Nov G3 (Strong). These Watches are in response to potential geomagnetic storm effects related to coronal mass ejections (CME) that have erupted from the Sun over the past several days. These events include CME activity from 9 November through the early morning of 12 November. The most recent CME occurred early on 12 Nov and is the most energetic and fastest of the CMEs. This CME was associated with an X5.1 solar flare (R3; Strong) that peaked at 1004 UTC (5:04 am EST) on 11 Nov. This CME is also associated with a moderate level solar radiation storm (S2) that is currently in progress. The forecast is tough due to this latest CME’s predominant ejecta aimed north and ahead of Earth’s orbit; additionally the previous CMEs are in the mix and anticipated to have some Earth-arrival influences prior to the 12 Nov CME arrival. Confidence in an Earth-component to the most recent CME is high, while timing has a moderate level of certainty. As always with these events, the intensity of the CME will not be know with better certainty until it arrives 1 million miles from Earth and is observed by the solar wind observatories at that location. It is at that point that any needed Warning decisions can be made by SWPC forecasters Solar Weather Updates.. Solar flares and sunspots.. Volcano and earthquake updates. Current World Earthquake Map Recent California and Nevada Earthquakes Geologist with the facts. Join this channel to get access to perks: Current Space Weather info Solarham.net Live earthquake watch. Live earthquake daily updates..
What Happened
An X5.1 class solar flare erupted on 11 November, producing a fast and energetic coronal mass ejection (CME) that is forecasted to cause a severe G4 geomagnetic storm on 12 November. This is the sixth largest solar flare recorded recently, accompanied by ongoing moderate solar radiation (S2) storm conditions. The geomagnetic storm watches include a G2 (Moderate) on 11 November and a G3 (Strong) on 13 November, linked to multiple CMEs spanning from 9 to 12 November. Forecasting is complicated by the overlapping CME ejecta, with the latest CME's trajectory partially north of Earth and timing moderately uncertain. Observations from solar wind monitors 1 million miles from Earth will refine intensity predictions and trigger any necessary warnings.
The increased space weather activity coincides with an uptick in global earthquake events, including notable seismic activity in California and Nevada, reported by geologists monitoring real-time seismic data. The combination of solar flares and CME impacts on Earth’s magnetosphere is under close watch for potential effects on geological disturbances and technological systems.
Why It Matters
This matter is significant because strong solar flares and associated geomagnetic storms can disrupt satellite operations, communications, navigation systems, and power grids on Earth, posing risks to infrastructure and safety. Additionally, emerging correlations between intense solar activity and increased seismic activity demand attention as they may signal complex interactions between solar events and Earth’s geophysical processes. Accurate forecasting and timely warnings are critical to mitigating adverse impacts on both technological assets and emergency preparedness for natural hazards.
Implications
Going forward, it is essential to monitor solar wind conditions closely as the CME approaches Earth, and to observe if geomagnetic storm effects intensify or deviate from forecasts. Seismologists and space weather experts should collaborate to confirm any causal connections between solar activity and earthquake frequency or magnitude changes. Stakeholders in infrastructure and disaster management need to remain alert to evolving alerts and prepare for potential disruptions linked to the geomagnetic storm and seismic activity increases. Continued data from solar observatories and real-time earthquake monitoring will guide response decisions.
Key Signals
- X5.1 class solar flare detected on 11 Nov
- G4 (Severe) geomagnetic storm watch issued for 12 Nov
- Multiple CMEs from 9-12 Nov impacting space weather
- Moderate solar radiation storm (S2) ongoing
- Possible increase in earthquake activity linked to solar events