Solar activity of an explosive character during the 23rd and 24th cycles is analyzed. X-ray observations from the GOES-15 satellite during flares and observations during coronal mass ejections (CME) with the SOHO/LASCO coronagraph are used. The delay intervals between the onset of a flare and the onset of a Halo-type CME associated the same active region were analyzed. It is shown that the time interval between the onset of the flare and the onset of the CME is an average of 2 times shorter for flares in classes ≥ X1 than for less powerful flares. All events accompanied by powerful flares in classes ≥ X1 were examined separately. The interrelationship between Halo-type CME and the geomagnetic indices Kp and Dst, used for space weather forecasting, was evaluated. It is shown that the probability of a dangerous magnetic storm on the earth with Kp ≥ 7 is more than 80% if two conditions are met simultaneously: V_CME ≥ 1000 km/s and |Dst| ≥ 100 nT.

分析了第23和第24周期的爆炸性太阳活动。使用了在耀斑期间从GOES-15卫星进行的X射线观测以及在SOHO / LASCO日冕仪的日冕物质抛射（CME）期间的观测。分析了耀斑发作和与相同活性区域相关的Halo型CME发作之间的延迟间隔。结果表明，对于≥X1类的火炬，火炬发作和CME发作之间的时间间隔平均比不那么强的火炬短2倍。分别对≥X1级的所有伴随着强力耀斑的事件进行了检查。评估了Halo型CME与用于空间天气预报的地磁指数Kp和Dst之间的相互关系。_CME≥1000 km / s和| Dst | ≥100 nT。