1928 Chachapoyas earthquake

The 1928 Chachapoyas earthquake occurred on May 14 at 17:14 local time. It had a magnitude of Mw 7.2, Ms 7.3, or ML 7.3. Chachapoyas, Peru was almost completely destroyed. A landslide in Pinpincos caused the death of 25 people. Many houses were damaged in Machala, Ecuador. The maximum intensity was X (Extreme) on the Mercalli intensity scale. The earthquake could be felt in Lima. It could also be felt in Ecuador, Brazil, and Colombia.

Aftershock
A strong aftershock occurred on July 18, 1928, at 14:05 local time (19:05 UTC). Some houses which had already been damaged in the main shock collapsed.