The earthquakes of July 1880 in Luzon, the largest island of the Philippines, were one of the most destructive tremors on record in the history of the country. The shocks continued, with greater or less interruption, from the 14th to the 25th of the month, highlighted by three violent shaking events, which destroyed churches and other buildings, producing loss of life. Coinciding with the tectonic activity was an increase in volcanic activity in Taal Volcano in southwestern Luzon.