An earthquake that caused major fractures and landslides in Ningxia-Gansu, China hit with a magnitude of 7.8 and killed an estimated 235,502 people on December 16, 1920.
An earthquake estimated to be of 7.0 magnitude struck Antioch, Turkey, which was at the time part of the Byzantine Empire on May 21, 526. It killed an estimated 240,000 people according to what has been recorded by Procopius and John of Ephesus.
On July 28, 1976, Tangshan in China was struck by an earthquake of 7.0 magnitude and it killed around 242,769 people.
One of the deadliest earthquakes in human history came on January 12, 2010 in Haiti where an estimated 316,000 people died according to Haitian sources. The non-Haitian sources estimate the death toll to be somewhere between 50,000 to 92,000 people. The magnitude of the earthquake was 7.0.
The earthquake of approximately 8.0 magnitude struck in Shaanxi, China on January 23, 1556. It reportedly killed an estimate of 820,000 to 830,000 people.