12 August 1912,
The galerna caused a disaster on the Biscayan coast. On that day, several speedboats went out to fish the nice and the temporal one raised a strong wind and caused huge waves. The next day, the boats were caught with bad news.
Many boats sank and 143 fishermen died, 116 Bermeanos and the rest of Lekeitio, Elantxobe and Ondarroa.
Source:
Ander Izagirre, Return to the Country of Elkano (Books of the K.O. ).