spot · group · outbreak (пятно · группа · вспышка)

Later, the Institute of Applied Geophysics named after Fedorov reported that three strong class M solar flares occurred on Thursday. 'On July 02 at 04:56 MSK, an M4.2 flare lasting 27 minutes was recorded in the X-ray range within spot group 4479 (N18W31),' according to the statement.

Consensus

Active solar region 4478 has become the second largest in size over the past decade
The active region 4478 reached an area of 1,550 units
A second active region, 4479, is also growing and located approximately half a million kilometers to the northwest of the main spot
Solar activity has sharply increased over the past day
Scientists expect plasma ejections from these regions to reach Earth within 24 hours
The impact on Earth may result in geomagnetic storms at levels G2-G3
The Sun's rotation is moving active centers away from Earth toward the west
By the weekend (July 4-5), solar activity will likely no longer affect Earth due to positioning of these regions

Points of divergence

The Institute of Applied Geophysics reported three strong flares on July 2, including M4.2, M1.1 and M8.5 flares from group 4479 — interfax
Three strong flares occurred on July 1 (M1.3, M1.4, and M5.9) in groups 4475 and 4479 respectively — m24
Scientists estimate that X-class flares may occur on July 2-3 with degradation of HF radio communication at certain times — interfax
X-class flares are expected to happen on July 2 and 3, along with worsening conditions for HF radio communications during some hours — m24

Coverage (2 sources)

Active region on the Sun has grown to become the second largest in a decade — Интерфакс
Active region on the Sun has become the second largest in a decade — Москва 24