March 1, 1964

1964Villarrica Volcano begins a strombolian eruption causing lahars that destroy half of the town of Coñaripe.^[†]

Villarrica is one of Chile's most active volcanoes, rising above the lake and town of the same name, 750 km (470 mi) south of Santiago. It is also known as Rucapillán, a Mapuche word meaning "great spirit's house" or " the demon's house". It is the westernmost of three large stratovolcanoes that trend northwest to southeast obliquely perpendicular to the Andean chain along the Mocha-Villarrica Fault Zone, and along with Quetrupillán and the Chilean portion of Lanín, are protected within Villarrica National Park. Guided ascents are popular during summer months.

1964Paradise Airlines Flight 901A crashes near Lake Tahoe, Nevada, killing 85.^[†]

Paradise Airlines Flight 901A was a scheduled passenger flight from San Jose Municipal Airport to Tahoe Valley Airport, both within California, USA. On March 1, 1964, the Lockheed L-049 Constellation serving the flight crashed near Genoa Peak, on the eastern side of Lake Tahoe during a heavy snowstorm, killing all 85 aboard. After the crash site was located, the recovery of the wreckage and the bodies of the victims took most of a month. Crash investigators concluded that the primary cause of the accident was the pilot's decision to attempt to land at Tahoe Valley Airport when the visibility was too low due to clouds and snowstorms in the area. After aborting the landing attempt, the flight crew lost awareness of the plane's location as it flew below the minimum safe altitude in mountainous terrain. The pilot likely tried to fly through a low mountain pass in an attempt to divert to the airport in Reno, Nevada, and crashed into the left shoulder of the pass. At the time, it was the second-deadliest single-plane crash in United States history, and remains the worst accident involving the Lockheed L-049 Constellation.