A major solar flare measuring X1.5 at its peak erupted on the Sun's NW limb -- most likely from the newly-formed Active Region 2838 -- on July 3, 2021, producing R3 - Strong radio blackout. The event started at 14:18, peaked at 14:29, and ended at 14:34 UTC....
July 03, 2021
A powerful double solar flare eruption took place beyond the Sun's east limb early October 18, 2017. The responsible region is now rotating into Earth view and will be visible in a couple of days. The eruption was associated with a Type II (estimated velocity 1...
October 18, 2017
A major X8.2 solar flare that erupted at 16:06 UTC on September 10, 2017 from Region 2673, produced a powerful asymmetric full halo Coronal Mass Ejection (CME) and it appears one part of it is heading toward Earth. A glancing blow is expected late on September 13....
September 11, 2017
A powerful X8.2 solar flare erupted from Region 2673, located just around the visible disk, at 16:06 UTC on September 10, 2017, causing R3 - Strong radio blackout and a rapid increase in relativistic proton levels. Within just 3 hours, solar radiation storm reached...
September 11, 2017
A major solar flare measuring X8.2 (R3-Strong radio blackout) at its peak time erupted from Active Region 2673 at 16:06 UTC on September 10, 2017. The event started at 16:44, peaked at 16:06 and ended at 16:31 UTC. This is the 4th X-class solar flare from this...
September 10, 2017
A major solar flare measuring X1.3 at its peak time erupted from Region 2673 at 14:36 UTC on September 7, 2017. The event started at 14:20, peaked at 14:36 and ended at 14:55 UTC. This is the third X-class solar flare since X2.2 at 09:10 UTC and X9.3 at 12:02 UTC on...
September 07, 2017
An impulsive solar flare measuring M7.3 at its peak time erupted from Region 2673 at 10:15 UTC on September 7, 2017. The event started at 10:11, peaked at 10:15 and ended at 10:18 UTC. It comes a day after two major X-class solar flares erupted from the same region....
September 07, 2017
The coronal mass ejection (CME) produced by the M5.5 solar flare on September 4, 2017 arrived at the DSCOVR spacecraft on September 6 at 23:08 UTC and at Earth 30 minutes later. The impact did not spark a geomagnetic storm, but the potential still exists as the CME...
September 07, 2017
A major X-class solar flare erupted from geoeffective Active Region 2673 peaking as X9.3 at 12:02 UTC on September 6, 2017. The event started at 11:53, peaked at 12:02 and ended at 12:10 UTC. This is the second X-class solar flare of the day. It comes just hours...
September 06, 2017
A powerful, long-duration solar flare measuring X2.2 at its peak time erupted from geoeffective Active Region 2673 at 09:10 UTC on September 6, 2017. The event started at 08:48 and ended at 09:59 UTC. This is the first X-class solar flare since May 5, 2015. There...
September 06, 2017
An impulsive, major solar flare reaching X2.7 erupted at 22:11 UTC on May 5, 2015 producing R3 (Strong) Radio Blackout. The event started at 22:05 and ended at 22:15 UTC. The source of this powerful eruption was old Region 2322, now numbered as 2339 and located on...
May 05, 2015
Region 2297 rotated onto the SE limb on March 5, 2015 and by March 15 it managed to produce a total of 99 C-flares, 24 M-flares and 1 X-flare. From March 8 to 12, it was the only numbered sunspot region on the solar disk and from the end of March 5 to March 16, with jus
March 16, 2015
A major solar flare measuring X2.1 (R3-Strong radio blackout) erupted from Region 2297 at 16:22 UTC on March 11, 2015. The event started at 16:11 and ended at 16:29 UTC.A Type II (estimated velocity 1 461 km/s) and IV radio emissions were associated with the event. Type
March 11, 2015
A major solar flare measuring X1.8 (R3-Strong Radio blackout) at its peak time erupted from Region 2242 ('beta-gamma-delta') at 00:28 UTC on December 20, 2014. The event started at 00:11 and ended at 00:55 UTC.A Type II radio emission with an estimated velocity
December 20, 2014
A partial halo Coronal Mass Ejection (CME) was generated by major X1.6 solar flare on November 7, 2014.WSA/ENLIL modeling of the event shows a partially Earth-directed component that is expected to impact the geomagnetic field early to midday on November 10 causing acti
November 08, 2014
A major solar flare measuring X1.6 (R3 - Strong radio blackout) at its peak time erupted from Region 2205 ('beta-gamma-delta') on November 7, 2014. The event started at 16:53, peaked at 17:26 and ended at 17:34 UTC.This region already produced several moderate t
November 07, 2014
Region 2192, the largest sunspot of the current solar cycle - Solar Cycle 24 (SC24) - has now started its farside rotation and will be remembered by ~137 solar flares (C-, M- and X-class) without any noteworthy Coronal Mass Ejection (CME). Though we covered all signific
October 31, 2014
Region 2192, now located near the southwest limb, unleashed its sixth X-class solar flare since it became fully apparent on the solar disk on October 18, 2014. The latest in series of its major eruptions is X2.0 solar flare on October 27. This latest event started at 14
October 27, 2014
The largest and most interesting active region of the current solar cycle - Region 2192 ('beta-gamma-delta") - erupted on October 26, 2014 with its fifth X-class solar flare since it rotated into Earth view. The event started at 10:04, peaked at 10:56 as X2.0 a
October 26, 2014
The largest sunspot region of Solar Cycle 24 - Region 2192 ('beta-gamma-delta') unleashed its fourth X-class solar flare since it rotated onto the Earth side of the Sun on October 25, 2014. The event lasted more than 1 hour. It started at 16:55, peaked at 17:08
October 25, 2014
The largest region of the current solar cycle erupted with a major solar flare reaching X3.1 on October 24, 2014 at 21:41 UTC. The event started at 21:07 and ended at 22:13 UTC.A narrow CME was associated with the flare and was observed in SOHO LASCO C2 imagery beginnin
October 24, 2014
A major solar flare measuring X1.6 at its peak time erupted from Region 2192 on October 22, 2014. The event started at 14:02, peaked at 14:28 and ended at 14:50 UTC.R3 - Strong radio blackout produced significant HF signal fading on the sunlit side of Earth. There are a
October 22, 2014
A major, long duration solar flare measuring X1.1 at its peak time erupted on October 19, 2014. The source was large Active Region 2192 (beta-gamma) located in the southeast quadrant. The event started at 04:17, peaked at 05:03 and ended at 05:48 UTC.The region is still
October 19, 2014
A major solar flare measuring X1.6 at its peak time erupted on September 10, 2014. The source was geoeffective Active Region 2158 located almost at the center of the disk. The event started at 17:21, peaked at 17:45 and ended at 18:20 UTC.Coronal Mass Ejection (CME) was
September 10, 2014
Solar activity began the period at low levels, increased to high levels by midweek, and ended the period at moderate levels. In total, 17 solar flares were measured at or above the M1 (Minor) threshold from June 9 - 15, three of which were X-class (R3-Strong) flares.Reg
June 16, 2014
It seems like the second peak of solar maximum is here. At 09:06 UTC on June 11, 2014, Active Region 2087 located near the southeastern limb erupted with third major solar flare in last 24 hours. This latest event was impulsive X1.0 flare. It started at 08:59, peaked at
June 11, 2014
Two X-class solar flares erupted in just over one hour from Sun's southeastern limb today. The first one peaked at 11:42 UTC as an impulsive X2.2 - you can read more about it here. The second X-class event of the day started a
June 10, 2014
An impulsive solar flare reaching X2.2 at its peak time erupted on June 10, 2014, generating R3 (Strong) radio blackout. The event started at 11:36, peaked at 11:42 and ended at 11:44 UTC. Source was Active Region 2087 located on the southeastern limb.A large Coron
June 10, 2014
On March 29, 2014 the sun released an X-class flare. It was observed by NASA's Interface Region Imaging Spectrograph, or IRIS; NASA's Solar Dynamics Observatory, or SDO; NASA's Reuven Ramaty High Energy Solar Spectroscopic Imager, or RHESSI; the Japanese Aer
May 08, 2014
Major solar flare measuring X1.3 erupted on April 25, 2014 from Region 2035 located behind the western limb. The event started at 00:17, peaked at 00:27, and ended at 00:38 UTC. Because of the location of this region CME was not Earth directed.R3 (strong) Radio Blac
April 25, 2014
Major solar flare measuring X1.0 erupted from Region 2017 on March 29, 2014. This event started on 17:35, peaked at 17:48 and ended at 17:54 UTC. Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point. Wide
March 29, 2014
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
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
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
Solar flare peaking as X1.04 erupted from Sun's southwest limb at 10:26 UTC on November 19, 2013. This event was observed around 'beta-delta' classified AR 1893. A Type II Radio Emission was registered at 10:24
November 19, 2013
Active Region 1890, located almost at the center of the disk, erupted with impulsive X1.1 solar flare at 05:14 UTC on November 10, 2013. A very bright Coronal Mass Ejection (CME) has been observed and the bulk mass seems to be heading well south of the
November 10, 2013
Another major solar flare erupted from AR 1890 which is now located almost at the center of the disk. The latest eruption event started 04:20, peaked at 04:26 as X1.1, and ended at 04:29 UTC. A Type II and IV Radio Emissions were associated with the event
November 08, 2013
New active region 1890 produced yet another strong impulsive flare. Powerful X3.3 solar flare erupted at 22:12 UTC on November 5, 2013. This sunspot group already produced 2 M-class and dozens of C-class solar flares in the past two days. A Coronal Mass
November 05, 2013
On this day, exactly 10 years ago, the largest ever recorded solar flare in history erupted from Sun's western limb. This mega flare started its historic eruption at 19:29 UTC from Active Region 10486 and peaked around 19:50 UTC. Ionizing radiation from the
November 04, 2013
A major solar flare reaching X2.3 peaked at 21:54 UTC on Tuesday, October 29, 2013. This event originated from AR 1875 located on the west limb. A Type IV Radio Emission, indicating a strong coronal mass ejection, was associated with the event but since
October 29, 2013
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