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Delhi News Daily > Blog > Technology > Sun Roars Back with Three M-Class Flares in 24 Hours – Delhi News Daily
Technology

Sun Roars Back with Three M-Class Flares in 24 Hours – Delhi News Daily

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Last updated: August 5, 2025 9:07 pm
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Sun Erupts with Triple Solar Flares After Weeks of Silence
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Contents
Solar Eruptions IgnitePotential Earth Effects

After three weeks of calm, the Sun roared back to life on Aug. 3–4, 2025, unleashing three moderate M-class solar flares in just 24 hours. These midday flares – including a 2.9-M flare on Aug. 3 and two more (M2.0 and M1.4) on Aug. 4, all erupted from sunspot region AR 4168. While not as intense as the largest X-class events, M-class flares are still powerful bursts of radiation capable of briefly disturbing Earth’s upper atmosphere. Experts say we may see minor effects, such as short-lived radio blackouts or a brush of auroras at high latitudes.

Solar Eruptions Ignite

According to space weather website SolarHam.com’s post on X, the flares marked a sudden end to a 22-day quiet spell on the Sun. Sunspot AR 4168, a magnetically complex region, rapidly grew active and unleashed the chain of flares. According to Space.com, the M2.9 flare at 10:01 a.m. EDT on Aug. 3 was the first moderate flare since mid-July, and it was followed by M2.0 and M1.4 flares on Aug. 4.
Each flare released intense X-rays and ultraviolet light.

M-class flares are ten times more energetic than the more common C-class flares, although far weaker than the most extreme X-class eruptions. Scientists noted that these eruptions likely hurled two coronal mass ejections (CMEs) into space, which are huge clouds of charged particles that can impact Earth if they arrive.

Potential Earth Effects

Scientists say these eruptions should have only minor impacts on Earth. By NOAA’s space-weather scale, M1–M4 flares correspond to R1–R2 (minor) radio blackouts, so any HF radio outages would be weak and brief. Satellite communications and power grids are expected to be unaffected.
However, the ejected CMEs may still skim past Earth.

EarthSky reports a possible glancing blow around Aug. 5–6, which could trigger a minor G1 geomagnetic storm. That could briefly light up auroras at high latitudes (for example, far-northern Europe or Canada). So far models suggest only a small chance of impact. In other words, NOAA forecasters classify this as a minor event, unlikely to cause disruptions.

 



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