More than 300 people were killed, and public buildings and houses were destroyed, including the newly–built stone church.

Following the disaster, the survivors relocated the town center to a more secure place about one–half kilometer inland.

Immediately following the Philippine-American War, the political status of Hernani was reduced into a barrio under the jurisdiction of Lanang (now Llorente).

In 1912, its status as a municipality was restored but the seat of local government was transferred to Pambujan (now General MacArthur).

However, in 1926, the municipality of Hernani regained back the township by virtue of an Executive Order issued by then American Government–General Leonard Wood.