Solar activity - page 12


Near X-class solar flare and geomagnetic storm - M9.3

Near X-class solar flare reaching M9.3 erupted from departing Sunspot 1996 on March 12, 2013 at 22:34 UTC. This decaying sunspot is located near eastern limb and generated CME was not geoeffective, however, it produced a R2 (Moderate) Solar Flare Radio Blackout

March 13, 2014

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Solar activity back to moderate levels, M2.5 from Region 1996

After major X4.9 solar flare that erupted on February 25 from Region 1990 [during its 3 rotation on the Earth side of the Sun] we almost had no day without a moderate eruption. Since then, solar observatories recorded 16 M-class solar flares ranging from M1.0 to M3.5. S

March 12, 2014


Sunspot 1996 produced M3.5 solar flare

Active Region 1996, located in the northern hemisphere, produced moderate  M3.5 solar flare at 03:50 UTC on March 11, 2014. This active region continues to rotate closer towards the northwestwern limb.   SDO's AIA 304 and EVE with GOES X-ray flux

March 11, 2014

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Powerful X4.9 solar flare erupted from Sunspot 1990

Newly numbered Active Region 1990 produced powerful X4.9 solar flare at 00:49 UTC on February 25, 2014, making it the third largest X-flare event of the current solar cycle. This decaying sunspot is in fact old returning region previously numbered as AR 1967. This is

February 25, 2014

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Geomagnetic storming in progress, M3.0 solar flare from western limb

As forecasted yesterday Coronal Mass Ejection (CME) hit Earth's magnetic field around 03:00 UTC today. That's a second CME impact within 24 hours, and another round of auroras.  SWPC issued Geomagnetic K-index of 6 (G2 - Moderate) alert at 05:28

February 20, 2014


Multiple CMEs observed from central region on the Sun

Solar activity was at moderate levels in last 24 hours (12:30 UTC). Region 1974 (S13W05, Fsc/beta-gamma-delta) continued to exhibit growth and separation in the intermediate spots, and was responsible for the majority of the flare activity throughout the

February 12, 2014


Solar activity increased again - M5.2 from central region on the Sun

Region 1967 (S13W12, Fkc/beta-gamma-delta) produced three moderate solar flares in last couple of hours. M3.8 was detected at 01:23 UTC, followed by M1.2 at 03:06 UTC and an impulsive M5.2 at 04:00 UTC. This region is almost directly facing our planet,

February 04, 2014

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Series of moderate eruptions and CMEs, Region 1967 approaching center of the disk

SWPC reported that solar activity continued at moderate levels today as both Regions 1967 (S13E01, Fkc/beta-gamma-delta) and 1968 (N10E03, Ekc/beta-gamma) produced M-class flare activity. These included an M2.6 at 06:34 UTC from Region 1968, an

February 02, 2014

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Growing region 1967 produced strong M6.6 solar flare, glancing blow from CME possible

At 16:11 UTC today Region 1967 (S14E48, Fkc/beta-gamma-delta) unleashed its 13th and strongest M-class solar flare since it returned from the farside of the Sun. The region is rotating toward the center of the disk and is showing a trend of slight growth.

January 30, 2014


10 M-class solar flares erupted in last 2 days, all from one big region

In last 2 days, since it announced its comeback to Earth view on January 27, Region 1967 (S15E60, Fkc/beta-gamma-delta / formerly known as Region 1944) produced 10 M-class solar flares. Current location of the region is not favorable for Earth directed

January 29, 2014


Regions 1944 and 1946 return from farside - still crackling with solar flares

After two weeks of transiting the farside, old Active Regions 1944 and 1946 are coming back into Earth view. Moderate to high solar activity is possible from January 27 through February 09, 2014.  The comeback was announced by two

January 27, 2014


Sunspot 1944 unleashed M 1.3 solar flare

Decaying Active Region 1944 erupted impulsive M1.3 solar flare at 21:51 UTC on January 13, 2014. This active region is about to rotate onto the west limb. Active Region 1946 is also about to rotate behind the west limb. Other five visible regions remain

January 14, 2014

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Major solar flare measuring X1.2 erupted from geoeffective region, bright CME generated

Geoeffective Active Region 1944 (beta-gamma-delta) erupted with major solar flare measuring X1.2 at 18:32 UTC today. The event started at 18:04, peaked at 18:32 and ended at 18:58 UTC. A Type II radio emission was registered at 18:17 UTC with estimated

January 07, 2014


Strong M7.2 solar flare erupted from big central region on the Sun

Huge central region on the Sun, AR 1944 (Fkc/beta-gamma-delta) erupted with strong solar flare measuring M7.2 at its peak time today. The event started at 10:07, peaked at 10:13 and ended at 10:37 UTC. Region 1944 is the largest and most magnetically complex

January 07, 2014

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Moderate solar activity continues - big sunspot delivers goodies

One of the biggest active regions of this solar cycle, AR 1944 (S08E38, Fkc/beta-gamma-delta), responsible for 6 M-class solar flares in last 4 days, is rotating into more geoeffective position. The largest event it produced so far was a long

January 05, 2014

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Strong M9.9 solar flare erupted from AR 1936

At 18:52 UTC today (January 1, 2014) strong solar flare measuring M9.9 erupted from Region 1936. R2 Moderate solar radiation storm was reported: area of impact centered primarily on sub-solar point on the sunlit side of Earth, limited blackout of HF

January 01, 2014

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Moderately strong M6.4 solar flare erupted from geoeffective region, glancing blow possible

Geoeffective AR 1936 (S16W36, Eac/beta-gamma-delta) produced an M6.4 solar flare on Tuesday, December 31, 2013. The event started at 21:45 and peaked at 21:58 UTC. It is possible that Earth-directed CME was associated, a glancing blow to our planet is

January 01, 2014