The sun came alive early Tuesday morning (May 14), unleashing a powerful X-class solar flare from a new, emerging sunspot region, AR4087.
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The outburst peaked at 11:25 a.m. Greek time (08:25 GMT), causing intense R3-level radio disruptions in Europe, Asia, and the Middle East — the areas of Earth that were illuminated by the sun at that time — as the sunspot region 4087 shows increased activity.
According to NOAA's Space Weather Prediction Center (SWPC), flares of this magnitude are relatively rare. Solar flares are classified according to their strength into five categories: A, B, C, M and X, with each category representing a tenfold increase in energy. The recent X-class flare reached X2.7, placing it at the lower end of the strongest category.
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The explosion sent a burst of X-rays and extreme ultraviolet radiation toward Earth at the speed of light, instantly ionizing the upper atmosphere. This sudden change caused disruptions in radio signals , leading to temporary communication outages for some radio amateurs in the affected areas.
It may also have been accompanied by a coronal mass ejection (CME) — the massive blasts of solar plasma and magnetic fields that often accompany X-ray flares — although this has not yet been confirmed. CMEs can cause geomagnetic storms and spectacular auroras if they collide with magnetic field . However, with AR4087 still near the edge of the solar disk, our planet appears to be out of the main path of danger for now.
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But that could soon change, as the AR4087 region is gradually rotating toward Earth and has already produced multiple solar flares. If this activity continues as the region looks directly at us next week, any future outbursts could have a strong impact on geomagnetic activity and increase the chances of auroras.
Source: space.com
