1873 Midwest Tornado Outbreak
1915 Lassen Peak erupts with a powerful force and is the only mountain other than Mount St. Helens to erupt in the contiguous United States during the 20th century.
1927 1927 Gulang Earthquake near Xining, China, this 7.6 magnitude earthquake killed 40,900 people in China. Some sources say it was an 8.3 magnitude killing up to 200,000 people which would make it one of the world’s most destructive earthquakes.
1960 Great Chilean Earthquake, sometimes called the Valdivia earthquake, hits southern Chile at 9.5 magnitude on the moment magnitude scale, making it the most powerful earthquake ever recorded.
2004 An F4 tornado wiped out the town of Hallam, Nebraska killing one resident. It was part of the 2004 tornado outbreak sequence and was one of the widest tornados on record at 2.5 miles wide. That record was broken in 2015 by the El Reno tornado which occurred on May 31, 2013.
2008 The Late-May 2008 Tornado Outbreak sequence, unleashed 235 tornadoes, including an EF4 and an EF5 tornado between May 22 and May 31, 2008. The tornados struck 19 states and one Canadian province.
2011 Joplin Tornado, An EF5 tornado struck Joplin, Missouri killing 162 people and causing 2.8 billion dollars in damages. It was the costliest and seventh most deadly single tornado in U.S. history.