events

The 6.4–7.1 Mw Lisbon earthquake kills about thirty thousand people.

Seismic magnitude scales

Scales to describe earthquake strength

Seismic magnitude scales are used to describe the overall strength or "size" of an earthquake. These are distinguished from seismic intensity scales that categorize the intensity or severity of ground shaking (quaking) caused by an earthquake at a given location. Magnitudes are…
Source: Wikipedia (CC BY-SA)

1531 Lisbon earthquake

Earthquake in Portugal

The 1531 Lisbon earthquake occurred in the Kingdom of Portugal on the morning of 26 January 1531, between 4 and 5 o'clock. The earthquake and subsequent tsunami resulted in approximately 30,000 deaths. Despite its severity, the disaster was not widely documented until the…
Source: Wikipedia (CC BY-SA)

January 26

Day of the year

January 26 is the 26th day of the year in the Gregorian calendar; 339 days remain until the end of the year.
Source: Wikipedia (CC BY-SA)