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Thursday, Oct 29, 2026 16:00 | By: VN

Etna (Sicily, Italy): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Toulouse warned of a volcanic ash plume rising to an estimated 13000 ft (4000 m), or flight level 130, and moving at 15 kts in E direction.
Original VAAC bulletin: ash plume to 13,000 ft (4,000 m) as of Oct 29, 06:57 UTC

Sheveluch (Kamchatka): An eruption was reported at Sheveluch at 03:58 UTC on 29 October 2026, with ash estimated at flight level 350. As of 06:00 UTC, volcanic ash was not identifiable in satellite data.
Original VAAC bulletin: ash plume observed as of 29 Oct 2026, 06:00 UTC

Sakurajima (Kyushu, Japan): A new eruption was reported at Sakurajima at 29 Oct 2026, 10:56 UTC, but no volcanic ash was identifiable in satellite data as of 11:00 UTC. No further advisories are planned unless ash is detected.
Original

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When a disaster strikes outdoors, first responders are able to capture data from a variety of sources to adequately prepare their response. Satellite imagery, GIS, GPS, and drones all provide the ability to gather information about the scene. However

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In-brief analysis

October 29, 2026

Data source: Gestor del Mercado de Gas Natural en Colombia (BEC), Bolsa Mercantil de Colombia (BMC)

Colombia is importing more liquefied natural gas (LNG) as domestic production continues to fall. A potential drought this fall and winter could limit the availability of hydroelectric generation and boost the country’s demand for natural gas power generation. Colombia’s government has declared a national disaster in anticipation of a drought resulting from an expected strong El Niño.

Average annual marketed natural gas production in Colombia decreased from 1,070 million cubic feet per day (MMcf/d) in 2022 to 772 MMcf/d in 2025, according to Gestor del Mercado de Gas Natural en Columbia (BEC). Between January and August 2026, production declined further, averaging 673 MMcf/d. The fields that produce most of Colombia’s natural gas—specifically Cusiana,

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Standard gain horn (SGH) antennas are widely used as the industry standard for low-uncertainty antenna gain calibrations, much like a calibrated weight on a scale. However, many SGHs are needed in order to cover multiple frequency bands. Such is the

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