MEXICO CITY—Towering a couple of hours from one of the world’s largest cities, the Popocatepetl volcano has been coating nearby towns with ash and disrupting flights at Mexico City’s airport, the busiest in Latin America. Hundreds of explosions have spit lava from the snow-tipped peak of the 17,797-foot Popocatepetl. Approximately 25 million people live within…

SANTIAGO XALITZINTLA, Mexico—At the edge of this town near the Popocatepetl volcano, away from the din of traffic, there was an occasional low rumble Monday, like an idling engine. A cloud of superfine ash descended, slightly reducing visibility and coming to rest on vehicles’ windshields. For more than a week, the 17,797-foot (5,425-meter) mountain just…

MEXICO CITY—Mexico City’s Benito Juarez International Airport reported early on Saturday that it had closed its operations due to ash from the Popocatepetl volcano, which has been active for days. “Due to the presence of volcanic ash, the airport closed operations at 4:25 a.m. We will keep you posted,” the airport said on its Twitter…

Adventure tourists Pyotr Kirinkin and Christina Kurochkina got more than they bargained for when the volcano they were going to see suddenly erupted. The pair were with a group of volcano scientists on their way to view the Bezymianny volcano in Russia’s extreme east Kamchatka region when it blew up in their faces. The group…

Some flights out of northern British Columbia are cancelled due to ash from a Russian volcano that erupted thousands of kilometres away. Air Canada says it is monitoring the ash cloud from the Shiveluch Volcano, which caused the cancellation of some of its regional flights to and from Prince Rupert and Terrace on Thursday. It…

BOGOTA—Colombia’s government is trying to speed up the evacuation of some 2,500 families living closest to the Nevado del Ruiz volcano, which is being monitored for a possible eruption, but some residents are refusing to leave. The volcano’s eruption in 1985 killed more than 25,000 people in Colombia’s biggest-ever natural disaster, with avalanches of earth…

BOGOTA—Colombian authorities have raised the alert level for the deadly Nevado del Ruiz volcano to orange, suggesting a greater probability of an eruption in the coming days or weeks, due to an increase in seismic activity. A significant increase in seismic activity associated with rock fracturing within the volcanic edifice has been registered since March…

HONOLULU—The latest eruption at Kilauea’s summit on Hawaii’s has paused after 61 days of volcanic activity. U.S. Geological Survey’s Hawaiian Volcano Observatory scientists said Tuesday lava was no longer flowing on the crater floor of Halemaumau, where all recent volcanic activity had been confined, Hawaii News Now reported. No significant changes have been observed along…

They look like balmy lagoons you could just dive right into, but this cluster of lakes is actually volcanic, the water whirling with sulfur. Found atop Mount Kelimutu on the island of Flores, Indonesia, three crater lakes each have different, changing colors, creating an effect like giant magical mood rings. Keli means “lake” and Mutu…

The Kilauea volcano in Hawaii started to erupt inside its summit crater on Thursday, officials announced in a volcanic activity notice, less than two months after the world’s largest active volcano, Mauna Loa, erupted for the first time since 1984. Shortly after 4:30 p.m. HST on Jan. 5, the U.S. Geological Survey (USGS) Volcano Observatory…