On September 15, 2023, around 01:10 UTC, an explosive eruption from Shishaldin Volcano sent an ash-rich cloud soaring to an altitude of 12.8 km (42 000 feet), accompanied by volcanic lightning. The eruption followed a several-hour increase in seismicity. The Aviation Color Code and Volcano Alert Level were raised to RED/WARNING.
An mesoscale low has rapidly developed between Spain and the Balearic islands, the Mediterranean Medicane Centre (MCC) said in their Special Outlook issued at 12:00 UTC on September 15, 2023.
Over the weekend of September 16 – 17, 2023, New Zealand’s MetService forecasts an intense westerly wind event across the South Island and the southern half of the North Island. This anticipated event could be more disruptive than yesterday’s strong winds, which resulted in power outages in Wairarapa.
As per the National Hurricane Center’s latest advisory at 12:00 UTC (8:00 AM AST) on September 15, 2023, Hurricane Lee, currently over the western Atlantic Ocean, is anticipated to bring tropical storm conditions across parts of coastal New England by this afternoon.
New activity/unrest was reported for 1 volcano from September 6 to 12, 2023. During the same period, ongoing activity was reported for 19 volcanoes.
A shallow earthquake registered by the USGS and EMSC as M6.1 hit West Chile Rise at 11:49 UTC on September 13, 2023 at a depth of 10 km (6.2 miles).
As of 5:00 AM AST (9:00 UTC), Hurricane “Lee” — a Category 3 storm on the Saffir-Simpson Hurricane Wind Scale, is intensifying and poses an increasing threat to portions of New England and Atlantic Canada.
Vanuatu’s Yasur volcano experienced increased activity on September 12, 2023, with intense explosions and abundant ash emissions. The Alert Level remains at 2 of 4.
Medicane “Marquesa”, also known as Storm Daniel, made a devastating landfall in Libya on September 10, 2023, resulting in severe flash flooding, especially in the country’s northeast. The storm brought with it extremely heavy rainfall, leading to catastrophic flooding and a tragic death toll of over 4 500 people, with thousands still missing.
A strong and shallow earthquake registered by the USGS as M6.3 hit near Dalupiri Island, Babuyan Islands Region, Philippines at 11:03 UTC on September 12, 2023. The agency is reporting a depth of 41.3 km (25.6 miles). EMSC is reporting M6.3 at a depth of 37 km (22.9 miles).
