Translated with AI
Scientists have recorded the second strongest solar flare in the last 24 hours, which occurred in an active solar region located directly on the Sun-Earth line. This was reported by the Solar Astronomy Laboratory of the Space Research Institute of the Russian Academy of Sciences.
The preliminary estimate of the flare power is class M6.4, which is slightly lower than the previous one, registered the day before and having a level of M8.4. The maximum radiation was recorded at 12:38 Moscow time (15:38 Kazakhstan time).
Scientists emphasize that both of these events — yesterday's M8.4 flare and today's M6.4 — are the most powerful solar explosions recorded in June 2025 and occurred back-to-back in the same active region on the Sun's surface. In the next 24 hours, the possibility of new flares of the highest X class — the highest category on the solar activity scale — cannot be ruled out.
Currently, experts continue to assess the possible impact of these events on Earth. According to their data, over the past 24 hours, four plasma ejections – coronal masses – have occurred on the Sun – most of which have passed by the Earth's orbit. However, the so-called tangential impact associated with the ejection after yesterday's M8.4 flare has already been confirmed, which may reach our planet on June 17-18. The exact data on the impact will be clarified today.
Solar activity during this period reaches high levels and, according to scientists, “shows no signs of weakening.” This surge in activity is considered one of the largest this year.
Experts advise monitoring updates and, if necessary, taking into account increased solar activity when planning space missions and the operation of satellite systems.
