Jakarta, domclub Indonesia
—
Phenomenon
geomagnetic storm
will occur globally from 12 to 14 November 2025. So, will there be an impact on Indonesia?
The Meteorology, Climatology and Geophysics Agency (BMKG) confirmed that the geomagnetic storm that occurred did not have a significant impact on infrastructure in Indonesia.
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Head of the BMKG Potential Geophysics Working Team, Syirojudin, said that this phenomenon was triggered by very high solar activity in the form of class X5.1 solar flares, one of the strongest categories on the space weather observation scale.
“This event triggered an ejection of plasma and a high-speed magnetic field or Coronal Mass Ejection (CME) which headed towards Earth. Based on monitoring by the NOAA Space Weather Prediction Center (SWPC), the level of the geomagnetic storm reached level G4 or the heavy category,” explained Syirojudin, reported by Antara, Thursday (13/11).
Based on observations at a number of BMKG earth magnetic observatories such as in Tondano, Tuntungan and Serang, geomagnetic activity began to be detected in the early hours of November 12 and lasted for three days.
BMKG said the maximum K index value indicates severe storm conditions, but the impact is relatively smaller in Indonesian territory.Syirojudin said Indonesia’s graphic position around the equator is a natural factor that protects it from the most extreme effects of geomagnetic storms.
“The equatorial region has a strong magnetospheric belt, called the Equatorial Electrojet, which functions as a shield from high-energy particles,” he said.
Nevertheless, he warned of the potential for minor to moderate disruption to satellite communication systems and GPS-based navigation, as well as the possibility of temporary disruption to high frequency (HF) radio communications in Indonesian territory.
BMKG recommends intensive monitoring of changes in the earth’s magnetic activity through the K index and A index in real-time, as well as encouraging the air and sea transportation sectors that depend on the GPS system to prepare backup communication protocols.
“There is no reason to panic. Magnetosphere protection makes the threat to daily life and the electricity grid in Indonesia very small,” said Syirojudin.
(dmi/dmi)
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