G3 – Strong geomagnetic storm in progress
A coronal mass ejection (CME) produced by a long-duration M8.2 solar flare at 07:09 UTC on August 1, 2024, reached Earth early on August 4, causing G3 – Strong geomagnetic storming.
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Powerful paroxysmal eruption at Etna, Aviation Color Code raised to Red, Italy
Strombolian activity at Italy’s Etna volcano increased during the night of August 3 to 4, 2024, evolving into strong lava fountaining by 03:20 UTC on August 4. In response, the Aviation Color Code was raised from Orange to Red at 02:45 UTC, indicating a higher level of volcanic threat to air travel. The last significant eruption at Etna occurred on July 23.
Hurricane Watch issued for portions of west-central Florida and the Big Bend region
Tropical Depression Four is expected to strengthen into a Tropical Storm as it tracks west of the Florida Peninsula this weekend and impact Florida this weekend by bringing hazardous rainfall and flooding, gusty winds, life-threatening inundation from storm surge along portions of the west coast, and the threat of a few tornadoes.
Strong M6.8 earthquake, series of strong aftershocks hit near the coast of Mindanao, Philippines
A series of moderate to very strong earthquakes hit near the coast of Mindanao, Philippines, on August 2 and 3, 2024. The strongest in the series was M6.8 at 22:23 UTC on August 2, at a depth of 25.8 km (16 miles), followed by M6.3 at 04:20 UTC on August 3, at a depth of 15.9 km (10 miles).
The Weekly Volcanic Activity Report: July 24 – 30, 2024
New activity/unrest was reported for 9 volcanoes from July 24 – 30, 2024. During the same period, ongoing activity was reported for 14 volcanoes.
Shallow M6.0 earthquake hits Tonga region
A strong and shallow earthquake registered by the USGS as M6.0 hit the Tonga region at 13:07 UTC on July 29, 2024. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting M5.8 at a depth of 10 km.
Strong glacial flood in Mýrdalsjökull, Aviation Color Code for Katla raised to Yellow, Iceland
A strong glacial flood began in Mýrdalsjökull, an ice cap atop the Katla volcano in southern Iceland, around 11:00 UTC on July 27, 2024. This event prompted authorities to raise the Aviation Color Code for Katla volcano to Yellow.
Impulsive X1.5 solar flare erupts from geoeffective Region 3764, G3 – Strong geomagnetic storm watch
An impulsive solar flare measuring X1.5 erupted from geoeffective Active Region 3766 at 02:37 UTC on July 29, 2024. The event started at 02:33 and ended at 02:43 UTC. As a result of recent solar activity, a G3 – Strong geomagnetic storm watch is in effect.
Multiple Earth-directed CMEs, significant geomagnetic storming possible
Solar activity was at very high levels over the past 24 hours, with a series of moderate to strong solar flares, including an M9.9 flare on July 28 with an Earth-directed component. This, coupled with the cannibal CME expected to arrive late on July 29 into July 30, suggests significant geomagnetic storming is possible, potentially in the range of G3 – Strong or even G4 – Severe on July 30.
Earthquake swarm at Campi Flegrei volcano, Italy
A new earthquake swarm was registered at Campi Flegrei volcano, Italy on July 26, 2024. This is the latest episode in a series of such events this year.
