A geomagnetic disturbance is expected to affect Earth for about 36 hours and could briefly reach the level of a severe geomagnetic storm, the Space Weather Operational Office said today.
Aurora may be visible in regions around geomagnetic latitude 40° during the period of geomagnetic disturbance, the office said.
Photo courtesy of the Central Weather Administration
The disturbance was caused by a long-duration solar flare that occurred yesterday in an active solar region and was accompanied by a coronal mass ejection, the agency said.
Photo courtesy of the Space Weather Operational Office
The solar event passed through the near-Earth space environment early today, resulting in a marked increase in solar wind speed and density in interplanetary space.
The disturbance is expected to last about 36 hours, and its maximum intensity could briefly reach the level of a severe geomagnetic storm, the office said.
The geomagnetic disturbance could lead to abnormally increased line current, inability to use high-frequency radio communication, anomalies in low-frequency radio communication and satellite positioning errors, it said.
Large-scale voltage control systems and protection systems could experience problems as a result of the disturbance, while some power transmission networks could be completely interrupted or experience brief power outages, it added.
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