What is going on with the reports of so many earthquakes below???

https://en.wikipedia.org/wiki/February_4

1169 – A strong earthquake struck the Ionian coast of Sicily, causing tens of thousands of injuries and deaths, especially in Catania.

1797 – The Riobamba earthquake strikes Ecuador, causing up to 40,000 casualties.

• 1975 – Haicheng earthquake (magnitude 7.3 on the Richter scale) occurs in Haicheng, Liaoning, China.

• 1976 – In Guatemala and Honduras an earthquake kills more than 22,000.

• 1998 – The 5.9 M_w  Afghanistan earthquake shakes the Takhar Province with a maximum Mercalli intensity of VII (Very strong). With 2,323 killed, and 818 injured, damage is considered extreme.