Update: Sept. 2 – 5.6 magnitude earthquake recorded near Puerto Madero, Mexico

Published Sep 24, 2026

TAPACHULA, Chis. — A 5.6 magnitude quake shook close to Puerto Madero on Wednesday morning, according to the U.S. Geological Survey.

A tremor hit the area at 12:28 UTC (06:28 local time). The earthquake’s epicenter was about 77 km southwest of Puerto Madero and occurred at a depth of 11 km.

Did you feel it?

If you experienced the quake, you can share your observations using the USGS Felt Report form.

Impact and estimated losses

The USGS categorized this as a Green Alert, which means there is a low likelihood of casualties and damage. Recent earthquakes in this area have caused secondary hazards such as landslides that might have contributed to losses.

Structure information summary

Overall, the population in this region resides in structures that are a mix of vulnerable and earthquake resistant construction. The predominant vulnerable building types are mud wall and adobe block with concrete bond beam construction.

Two tremors nearby last week

Two earthquakes greater than magnitude 2.5 have been detected in the region in the past week. Each was centered in the same area with the more significant — a 4.3 magnitude event — occurring on Aug. 30. The second, a 4.1 magnitude quake, jolted on Sep. 2.

Area struck by 6.2 quake in 1991
Strong earthquakes have struck the area before. A magnitude 6.2 quake struck 2.5 miles southeast of Patzún in Patzún on Sep. 18, 1991, at a depth of 3.1 miles.

Source: The U.S. Geological Survey