Long duration C2 solar flare erupted from Region 1690

Long duration C2 solar flare erupted from Region 1690

A long duration C-class solar flare erupted from Region 1690 on March 12, 2013. The event started at 10:17, peaked ad 11:06 as C2.0 flare and ended at 12:25 UTC. A Coronal Mass Ejection (CME) was produced. Region 1690 still has Alpha magnetic configuration, but its nearby Region 1691 is now Beta classified. Couple of hours later, at 14:16 UTC, Region 1695 erupted with C1.0 solar flare.

X-Ray Flux - Long duration C2 solar flare - March 12, 2013

A big filament was recorded after the C2 event started:

March 12, 2013 - C2 Solar Flare. Filament eruption - C2 solar flare - March 12, 2013 - Image courtesy of NASA/SDO and the AIA, EVE, and HMI science teams



On March 12, 2013 at 12:00 UTC there were 8 numbered active regions visible from Earth. Erupting Region 1690 has Alpha magnetic configuration same as regions 1695, 1694, 1692 and 1693. Active regions 1696, 1691 and 1689 have Beta magnetic configuration. Pay attention to centered Region 1696 as it rotates into more geoeffective position in the coming days.

MDI - Sunspots count - SDO - March 12, 2013

NOAA SWPC forecasters estimated there would be 15% chance for M-class solar flare and 01% chance for an X-class solar flare today.

Featured image courtesy of NASA/SDO and the AIA, EVE, and HMI science teams

Register/become a supporter

Support us AD-FREE

Your support is crucial for our survival. It makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share. 

Monthly subscription

Subscription options

Yearly subscription

Subscription options

You'll receive your ad-free account for 20x faster browsing experience, clean interface without any distractions, ability to post comments without prior editorial check, all our desktop and mobile applications (current and upcoming) ad-free and with the full set of features available, a direct line of communication and much more. See all options.


No comments yet. Why don't you post the first comment?

Post a comment

Your name: *

Your email address: *

Comment text: *

The image that appears on your comment is your Gravatar