Solar activity - page 3

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3 strong M-class solar flares erupt from Region 2567, CME produced

Three strong solar flares erupted from Active Region 2567 early on July 23, 2016 - M5.0, M7.6, and M5.5. A Coronal Mass Ejection (CME) was produced during the third one, however, this region is not in a position to produce Earth-directed CMEs. The first flare...

July 23, 2016


Two M1 solar flares, flurry of C-class erupt from geoeffective Region 2567

After more than 3 months without any significant solar flare, our sun produced two consecutive M-class flares early on July 21, 2016. The source was Active Region 2567 ('beta-gamma' / 'beta'), currently moving out of its geoeffective position....

July 21, 2016


Faint, asymmetric halo CME combined with CH HSS to hit Earth's magnetic field on July 21

Although solar activity was at low levels on July 17, 2016, geoeffective Active Region 2567 ('beta-gamma') managed to produce a long duration C1 solar flare. The event peaked at 06:42 UTC, producing a faint, asymmetric halo Coronal Mass Ejection (CME)....

July 19, 2016

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Impulsive solar flare measuring M6.7 erupted from Region 2529

An impulsive solar flare measuring M6.7 (R2 - Moderate radio blackout) erupted from Active Region 2529 at 00:29 UTC on April 18, 2016. The event started at 00:14 and ended at 00:39 UTC. This was the first M-class solar flare since M1.1 on February 15, 2016, the...

April 18, 2016

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Region 2497 produces M1.0 solar flare

'Beta-Gamma-Delta' classified Active Region 2497 produced an M1.0 solar flare at 19:26 UTC on February 14, 2016. The event started at 19:18 and ended at 19:29 UTC. After M1.0 at 10:47 UTC on February 12 and M1.8 at 15:24 UTC on February 13, this is the third...

February 14, 2016

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Moderately strong M1.8 solar flare erupts from Region 2497

A moderately strong solar flare measuring M1.8 at its peak time erupted from 'Beta-Gamma-Delta' classified Region 2497 at 15:24 UTC on February 13, 2016. The event started at 15:16 and ended at 15:24 UTC. There were no radio signatures that would suggest a...

February 13, 2016

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Asymmetric, Earth-directed partial-halo CME and M1.0 solar flare erupted from Region 2497

An asymmetric partial-halo Coronal Mass Ejection (CME) erupted from Region 2497 late February 11, 2016. The CME was, at least in part, produced by a long duration C8.9 solar flare that peaked at 21:03 UTC. Associated with the event were Type II and Type IV radio...

February 12, 2016


Cosmic radiation intensifying as we enter another Solar Minimum

An increased activity of cosmic rays has been observed around the Arctic Circle by the neutron monitors during the last year. The same trend was also noted in an independent measurement project carried out by the and the students of Earth to Sky...

January 28, 2016


Prolonged CME effects spark G1 Minor geomagnetic storm

Prolonged effects of a partial-halo CME impact, produced by the filament eruption just of center disk late on January 14, 2016, is causing a G1 Minor geomagnetic storm on January 20, 2016. The CME reached our planet just before 21:00 UTC on January 18. Geomagnetic...

January 20, 2016

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Long duration M2.3 flare erupts causing S1 Minor solar radiation storm

A long duration solar flare measuring M2.3 at its peak time erupted from departing Region 2473 at 00:11 UTC on January 2, 2016. The event started at 23:10 UTC on January 1 and ended at 01:01 UTC on January 2. A Type II (estimated velocity 1019 km/s) and a Type IV...

January 02, 2016

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Long duration M1.8 solar flare produces a full halo, Earth-directed CME

A long duration solar flare measuring M1.8 at its peak time erupted from central Region 2473 at 12:45 UTC on December 28, 2015. The event started at 11:20 and ended at 14:09 UTC. The flare produced a full halo CME heading directly toward Earth. A type IV radio sweep...

December 28, 2015

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Strong M4.7 solar flare erupts from Region 2473

A moderately strong solar flare measuring M4.7 at its peak erupted from Region 2473 at 00:40 UTC on December 23, 2015. The event started at 00:23 and ended at 00:52 UTC. A Type II radio sweep with estimated velocity of 1318 km/s as well as a Type IV radio sweep...

December 23, 2015

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M-class solar flares erupting behind the Sun's northeast limb

An active region currently positioned behind the northeast limb erupted with two M-class solar flares by 10:19 UTC on December 21, 2015. The first event started at 00:52, peaked at 01:03 as M2.8 and ended at 01:11 UTC. The second event started at 10:09, peaked at...

December 21, 2015


Large filament erupts on the southeast quadrant of the Sun

A large filament erupted on the southeast quadrant of the Sun during the early morning UTC hours of November 22, 2015. The eruption began at approximately 07:30 UTC and launched a coronal mass ejection (CME) into space. Although LASCO coronagraph imagery is still...

November 22, 2015

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Strong M3.9 solar flare erupts from Region 2449 producing a bright CME

A strong solar flare measuring M3.9 at its peak erupted from Region 2449 at 13:12 UTC on November 9, 2015. The event started at 12:49 and ended at 13:28 UTC. A bright Coronal Mass Ejection (CME) was produced. The event was associated with a Type II (estimated...

November 09, 2015


The Sweden Case: Airplanes disappear from radars due to "solar storm"

Swedish media is reporting air traffic problems due to "solar storm" interfering with air traffic control radar systems during the afternoon of November 4, 2015. It is unclear, however, whether they meant the Solar Radiation Storm or Geomagnetic Storm, two...

November 05, 2015

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Long duration M3.7 flare erupts from Sun's central region, CME to impact Earth on November 7

A long duration solar flare measuring M3.7 at its peak erupted from geoeffective Region 2443 at 13:52 UTC on November 4, 2015. The event started at 13:31 and ended at 14:13 UTC. Radio signatures suggest a Coronal Mass Ejection (CME) was produced. The event was...

November 04, 2015