The 1948 Lady Caycay earthquake occurred at 01:46 PST (UTC+08:00) on 25 January 1948 with an estimated moment magnitude of 7.8 and a maximum Mercalli intensity of X (Extreme).

However, accounts of its intensity and the tsunamis it generated are sparse, possibly because the earthquake struck as the Philippines was recovering from the effects of the Second World War.

José María Cuenco, the Bishop of Jaro, estimated that the damage to 15 churches destroyed on Panay alone amounted to ₱7,000,000.

In the town of Anini-y (the earthquake's epicentre), no distinct damage was seen in the century-old church—the only confirmed masonry structure existing at the time.

[3] The Coronet Tower in Arevalo District also collapsed, as did the old Central School and back portion of the church in León.

Ground disruptions described as "little canyons", possibly the sand blows, were observed in Pototan, Cabatuan, Dingle, Passi, and Calinog.