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Hualca Hualca is a 6,025-metre-high (19,767 ft) extinct volcano in the Andes of southern Peru. It is part of the Peruvian segment of the Central Volcanic Zone, one of several volcanic belts in the Andes. It lies about 70 kilometres (43 mi) northwest of Arequipa and is part of a north–south chain that includes the volcanoes Ampato and Sabancaya, the last of which has been historically active. Hualca Hualca features a wide amphitheatre-like structure on the northern flank, which was created by a gigantic landslide during the Pleistocene. After the collapse, renewed volcanic activity built a new summit and several lava dome complexes within the collapse scar. After the cessation of volcanic activity, glaciers eroded the volcano and formed multiple moraines. The present-day volcano is covered by glaciers, and during the Last Glacial Maximum, glaciers advanced to low altitudes. There are hot springs and geysers north of the mountain, and the magma chambers of Sabancaya are located below Hualca Hualca. (Full article...)

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Did you know ...

T. D. Bancroft

... that temperance movement activist T. D. Bancroft (pictured) witnessed Abraham Lincoln's assassination and lectured about it across America?
... that a reviewer praised At Hope's Ravine by saying that singer Pat Hynes sounds "like he's being unbearably tortured whilst holding a pneumatic drill"?
... that Carlos Baxter was erroneously given 130 votes meant for his brother during the 1860 U.S. House of Representatives election?
... that during the Spanish Civil War, when the government fled the coming siege of Madrid, the Rosal Column detained several government ministers and accused them of cowardice?
... that Almeda Lambert provided detailed instructions for creating homemade meat substitutes, such as "Nutora" and "Nutmeato"?
... that Tao Asian Bistro was used by The New York Times to test new conversation-boosting features in Apple's AirPods Pro?
... that runner Mirsada Burić survived a concentration camp, an attempted rape, and snipers' bullets before she competed at the 1992 Olympics?
... that a former U.S. president helped dedicate the United Engineering Center, and a future U.S. president demolished it?
... that former governor of Jakarta Sutiyoso has a museum dedicated to himself in his backyard?

In the news

Anthony Albanese

The Australian Labor Party, led by Prime Minister Anthony Albanese (pictured), wins a majority in the federal election.
In Trinidad and Tobago, the United National Congress wins a majority in the general election.
In Canada, the Liberal Party wins the most seats in the federal election.
A power outage affects most of the Iberian Peninsula.
An explosion and fire at the Port of Shahid Rajaee, Iran, kills at least 70 people and injures more than 1,200 others.

On this day

May 4: Youth Day in China; Literary Day in Taiwan; Star Wars Day

Pope Alexander VI

1493 – Pope Alexander VI (pictured) issued the papal bull Inter caetera, establishing a line of demarcation dividing the New World between Spain and Portugal.
1776 – American Revolution: The Colony of Rhode Island and Providence Plantations became the first of the Thirteen Colonies to renounce its allegiance to the British Crown.
1942 – World War II: Aircraft from Imperial Japanese Navy vessels attacked Allied naval forces, beginning the Battle of the Coral Sea, the first naval action in which the participating ships never sighted or fired directly at each other.
1974 – An all-female Japanese team reached the summit of Manaslu in the Himalayas, becoming the first women to climb a peak higher than 8,000 metres (26,247 ft) above sea level.
1979 – Margaret Thatcher became the first female prime minister of the United Kingdom.

John Nevison (d. 1684)
Nettie Stevens (d. 1912)
Audrey Hepburn (b. 1929)

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Today's featured picture

The Greensburg tornado was a large and devastating tornado that moved through Kiowa County, Kansas, on the evening of May 4, 2007, amid a tornado outbreak across the central United States, causing catastrophic damage to the town of Greensburg. The tornado tracked 28.8 miles (46.3 kilometers) through the area, killing at least twelve people and injuring sixty-three others. The tornado was the first to be rated EF5 on the enhanced Fujita scale after the retirement of the original Fujita scale in the United States in 2007. This photograph, taken for the Federal Emergency Management Agency, shows the destroyed town center of Greensburg on May 16, twelve days after the tornado struck.

Photograph credit: Greg Henshall

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