Powerful solar flare reaching M5.9 erupted from eastern limb

Powerful solar flare reaching M5.9 erupted from eastern limb

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A powerful solar flare measuring M5.9 at its peak time erupted from eastern limb of the Sun on August 24, 2014, at 12:17 UTC. The event started at 12:00, peaked at 12:17 and ended at 12:25 UTC.

The source was new AR 2151 located on the south eastern limb. Coronal Mass Ejection (CME) produced by this eruption should not be Earth directed.

A Type II (593 km/s) and Tenflare (409 sfu) radio emissions were associated with this event. Potential impacts: area of impact centered primarily on sub-solar point on the sunlit side of Earth. Radio - limited blackout of HF (high frequency) radio communication for tens of minutes.

Type II emissions occur in association with eruptions on the sun and typically indicate a CME is associated with a flare event.

NOAA SWPC forecasters estimate 30% chance for M-class, and 5% chance for X-class solar flare in next two days.

The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 358 km/s at 22/2312Z. Total IMF reached 5 nT at 23/0505Z. The maximum southward component of Bz reached -4 nT at 23/0601Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 457 pfu.

Space Weather Message Code: SUMXM5
Serial Number: 119
Issue Time: 2014 Aug 24 1256 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2014 Aug 24 1200 UTC
Maximum Time: 2014 Aug 24 1217 UTC
End Time: 2014 Aug 24 1225 UTC
X-ray Class: M5.9
Optical Class: 2b
Location: S07E77
NOAA Scale: R2 - Moderate

Comment: Impulsive M5/2b flare from new Region 2151 near the SE limb. Type II (593 km/s) and Tenflare (409 sfu) radio emissions associated with this event.
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

***

Space Weather Message Code: ALTTP2
Serial Number: 954
Issue Time: 2014 Aug 24 1249 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Aug 24 1214 UTC
Estimated Velocity: 593 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

***

Space Weather Message Code: SUM10R
Serial Number: 624
Issue Time: 2014 Aug 24 1249 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2014 Aug 24 1209 UTC
Maximum Time: 2014 Aug 24 1210 UTC
End Time: 2014 Aug 24 1216 UTC
Duration: 7 minutes
Peak Flux: 409 sfu
Latest Penticton Noon Flux: 132 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

Sunspots

There are currently 8 numbered sunspot regions on the disk.

Sunspots on August 24, 2014. Image credit: NASA SDO / HMI

2141 - Alpha
2143 - Beta
2146 - Beta
2147 - Alpha
2148 - Beta
2149 - Beta-Gamma
2150 - Alpha
2151 - Alpha

Featured image: NASA SDO AIA 131

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Tags: m-class

Comments

Jamal Shrair 4 years ago

Now in the next a few days watch for major earhquakes and V. Eruption

Chris Webster 4 years ago

Earth directed is for the most part a bad thing. Yea I know pretty northern lights. Yes a big CME directed toward earth can be a very bad thing. My point is this. Who's to say that there are not detrimental effects on us and the Earth even though the CME is not Earth directed? I'd like to hear more about general studies being done on solar flairs, CME's and their potential affects on humans as well as minor/major impacts on the Earth even if CME is not Earth directed.

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