![]() Most are small, but the observatory said a 1999 eruption produced an ash cloud that reached 8.5 miles (14 kilometres).As Stephen Palumbi looked around the deep blue water, he had the eerie impression that something wasn't right. There have been at least 26 confirmed eruptions at Shishaldin Volcano since 1824. The 660-foot (210-metre) funnel-shaped crater often emits steam and an occasional amount of ash. Shishaldin is a symmetric cone with a base diameter of 10 miles (16 kilometres), the observatory said. The powdered rock can cause a jet engine to shut down. Volcanic ash is angular and sharp and has been used as an industrial abrasive. The National Weather Service issued an advisory due to the drifting ash cloud. That changed hours later with the ash cloud. The volcano, one of the most active in the Aleutian arc, saw increased lava eruptions just after midnight Tuesday, with no significant ash emissions, the observatory said. A second smaller explosion occurred later Friday. Coast Guard overflight confirmed lava erupted the same day within the summit crater.Ī significant explosion early Friday produced an ash cloud that reached up to 7.5 miles (12 kilometres) and drifted south over the Pacific Ocean. Shishaldin Volcano began erupting July 11. The island's 65 or so residents live about 25 miles (40 kilometres) northeast of the volcano, in the community of False Pass. The volcano is about 700 miles (1,127 kilometres) southwest of Anchorage and sits near the middle of Unimak Island. Download our app to get breaking news alerts delivered right to you.Climate Barometer newsletter: Sign up to keep your finger on the climate pulse.But by early afternoon, ash emissions were below 1.9 miles (3 kilometres), and the aviation alert was downgraded, according to the Alaska Volcano Observatory. ![]() ![]() An ongoing eruption of a remote volcano in Alaska's Aleutian Islands produced an ash cloud so large Tuesday that warnings were sent to pilots about potentially dangerous conditions.Īn ash cloud with an initial height of around 5.5 miles (8.9 kilometres) was reported following the morning eruption of Shishaldin Volcano. ![]()
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