Incidents on 21 April 2023
Friday, 21 April 2023 — before continuous monitoring began on 9 August 2026. For this day we hold earthquakes from the USGS catalogue (magnitude 2.5 and above) and a few historical records, not a full record of every incident.
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No incidents were recorded on this date. If this is an old date, our archive may simply not reach back that far — the database begins when the tracker launched.
The same date, other yearsOn This Day in History
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The Tamil Tigers are blamed for a car bomb that detonates in the Sri Lankan capital city of Colombo, killing 106 people.
A tornado outbreak in Illinois, United States, kills over 50 and injures over 1,000. Belvidere sustains over 500 casualties as a violent tornado strikes the high school. Another tornado near Chicago causes another 500 casualties, devastating Oak Lawn.
The U.S. Weather Bureau records that a tornado which struck Timber Lake, South Dakota was 4 miles (6.4 km), among the widest tornadoes on record.
Historical entries from Wikipedia (CC BY-SA), filtered to disasters and incidents.