Eruptive activity at Semisopochnoi has gradually increased over the last 24 hours, the Alaska Volcano Observatory (AVO) reported at 21:48 UTC on April 22, 2021. Satellite views of the volcano show a continuous plume extending 80 km (50 miles) to the south at…
A GPS network data revealed a shallow and fully locked part on the Caribbean subduction zone in Colombia, indicating that there is a possible large earthquake and tsunami hazard for the country's northwest region. Colombia is situated in the middle of a complex…
Subtropical Storm "Potira" formed off the coast of Brazil on Tuesday, April 21, 2021, one month ahead of the start of the North Atlantic hurricane season. It is considered a rare tropical system as it has developed too early in the season and formed in a…
An unusually cold front swept through the central and eastern U.S. Tuesday, April 20, 2021, bringing chilly conditions and snow all the way to Mid-South. By Wednesday morning, April 21, scores of record cold temperatures were set. The cold is expected to settle in…
A C3.8 solar flare erupted from Active Region 2816 at 04:35 UTC on April 22, 2021, producing a coronal mass ejection (CME). The event started at 04:10 and ended at 05:00 UTC. The location of the source region favors Earth-directed CMEs. The flare was associated with…
New activity/unrest was reported for 5 volcanoes from April 14 to 20, 2021. During the same period, ongoing activity was reported for 18 volcanoes. New activity/unrest: Karymsky, Eastern Kamchatka (Russia) | Krysuvik-Trolladyngja, Iceland | Piton de la Fournaise,…
At least three fatalities have been reported and around 230 000 have been displaced due to the onslaught of Typhoon "Surigae"– locally called Bising– in the Philippines, the National Disaster Risk Reduction and Management Council (NDRRMC) reported…
At least 14 people have died while 8 165 have been displaced after heavy rains caused flash floods in Luanda Province, Angola, on April 19, 2021. Widespread damage was also reported, with up to 1 617 homes flooded. Drainage channels blocked by rubbish reportedly…
A new study reveals the workings of an "earthquake gate" — a naturally occurring blocker that decides which quakes are allowed to grow into M8.0 or greater. "An earthquake gate is like someone directing traffic at a one-lane construction zone,"…
A moderately strong solar flare measuring M1.1 at its peak erupted at 23:42 UTC on April 19, 2021. The event started at 23:19 and ended at 23:59 UTC. The source was Active Region 2816 (beta). Associated with this event were Type II (shock velocity of 750 km/s) and…
