On February 8, 1570 a
strong earthquake destroyed Concepción. It was accompanied by a
tsunami, and aftershocks were felt for months. There were no deaths, but every house was destroyed. Because of a delay between the earthquake and the tsunami, the population was able to escape to higher ground. Nevertheless, they thought the end of the world had arrived. In the middle of 1570, the reinforcements solicited from Spain arrived in Lima, and in the following spring Bravo reinitiated hostilities with the Indigenous in Chile. Again, defeats followed for the Spanish. Captain Gregorio de Oña was surprised by the Mapuches near the fort of
Purén. The governor sent more troops to the south, including his son Ramiro. Again, the Spanish (about 160 of them this time) were
taken by surprise near Purén. After this defeat Bravo decided to turn over the military command to
Lorenzo Bernal del Mercado and retain only his civil functions. In 1571 the bishopric of
La Imperial was created. The first bishop was the
Franciscan Antonio de San Miguel, who arrived in Chile after being consecrated in Lima. San Miguel was opposed to the forced labor being extracted from the Indigenous people, the
encomienda system, and the Arauco War, on which he blamed all the misfortunes of the colony. His influence was such that in 1572 King Philip II replaced the forced labor of the Indians with a monetary tax. During this time construction began on the church of San Francisco in
Santiago. ==Criticism of his government==