# Seismic activity in Mexico, Central America and Peru

> Live situation record from CLSTR: https://clstr.news/situations/lowmagnitude-earthquakes-in-latin-america
> Updated: 2026-08-31T22:31:10.000Z. Sources: 118. Developments: 14.

Seismic activity continued across Mexico, Central America, and Peru through late August 2026. In early August, a series of tremors struck the Pacific coast of Mexico, including magnitude 4.4 events near Mapastepec and Huixtla in Chiapas, and a magnitude 4.1 event near Salina Cruz, Oaxaca. On 7 August, a magnitude 4.0 earthquake occurred 36 km west of Tecpan de Galeana, Guerrero; authorities reported no injuries or damage. On 9 August, Guatemala’s Insivumeh reported a 4.3 magnitude earthquake in the Pacific Ocean near its southwestern departments, while the Instituto Geofísico del Perú (IGP) reported tremors across northern and southern Peru, prompting calls for evacuation measures. On 10 August, Mexico recorded a 4.4 magnitude earthquake southwest of Atoyac de Álvarez, Guerrero, alongside tremors in Chiapas. On 13 August, a strong earthquake struck the Pacific coast, felt in El Salvador, Honduras, and Nicaragua. The USGS reported a magnitude 5.5 event, while El Salvador’s Ministry of Environment and Natural Resources recorded a magnitude 5.7. The epicenter was near Usulután, approximately 160 km south of San Salvador; no tsunami threats or significant damage were reported. On 16 August, a magnitude 5.2 earthquake struck near Puerto Madero, Chiapas. This follows the 17 July magnitude 7.4 earthquake near the Guatemala border, which has produced over 1,690 aftershocks. On 23 August, the Servicio Sismológico Nacional (SSN) recorded a magnitude 4.4 earthquake off the coast of Chiapas at 04:02:54 local time. On 2 September 2026, a magnitude 5.5 (or 5.6 per USGS) earthquake occurred approximately 145 km southwest of Huixtla, Chiapas, at a depth of 10 km. This event was followed by at least four significant aftershocks between magnitudes 4.1 and 4.3 near Huixtla, Ciudad Hidalgo, and Mapastepec within two hours. No immediate injuries or damage were reported.

## Claims

- A magnitude 5.2 earthquake occurred near Puerto Madero, Chiapas, at 10:52 local time. (disputed by 9 sources)
- The earthquake had a depth of 35 kilometers. (disputed by 9 sources)
- A magnitude 4.3 earthquake was recorded at 2:50:51 hours, located 152 kilometers southwest of Ciudad Hidalgo, Chiapas, with a depth of 12.2 kilometers. (disputed by 2 sources)
- A magnitude 5.8 earthquake occurred off the coast of Central America on Wednesday, August 12, at 6:30 PM. (disputed)
- The earthquake had a depth of 28 kilometers. (disputed)
- A magnitude 4.9 earthquake was recorded southwest of Mapastepec, Chiapas, at 09:52:55 local time. (disputed)
- No injuries or material damages have been reported from this specific seismic event. (corroborated by 9 sources)
- More than 1,690 aftershocks have been recorded since the July 17, 2026, magnitude 7.4 earthquake near Ciudad Hidalgo. (corroborated by 8 sources)
- Authorities ruled out a tsunami threat for the Central American region following the earthquake. (single source)
- The earthquake was felt in El Salvador, Honduras, and Nicaragua. (single source)

## Timeline

### 2026-08-31: Chiapas coast hit by magnitude 5.5 earthquake and multiple aftershocks

A magnitude 5.5 earthquake and several significant aftershocks struck the coast of Chiapas, Mexico, on September 2, 2026. No injuries or major damages have been reported.

10 sources. https://clstr.news/cluster/earthquakes-strike-chiapas-and-junn-regions

### 2026-08-31: Seismic activity rises in Chiapas as Guatemala faces heavy storms

Chiapas, Mexico, reports a doubling of seismic activity in early 2026, while Guatemala faces heavy rains, flooding, and storm warnings due to an East Wave.

4 sources. https://clstr.news/cluster/seismic-activity-rises-in-chiapas-as-guatemala-faces-heavy-storms

### 2026-08-22: Mexico Congress calls for enhanced seismic detection capabilities

Mexico's Congress has called for enhanced seismic and volcanic early warning systems, citing the need for permanent public policy following a significant earthquake near Chiapas.

5 sources. https://clstr.news/cluster/mexico-congress-calls-for-enhanced-seismic-detection-capabilities

### 2026-08-22: Chiapas, Mexico, experiences magnitude 4.4 earthquake

A magnitude 4.4 earthquake struck off the coast of Chiapas, Mexico, on August 23, 2026. The shallow tremor caused no reported injuries or structural damage.

2 sources. https://clstr.news/cluster/chiapas-mexico-experiences-magnitude-44-earthquake

### 2026-08-16: Chiapas experiences magnitude 5.2 earthquake near Puerto Madero

A magnitude 5.2 earthquake struck near Puerto Madero, Chiapas, amid a period of high seismic activity in Mexico and South America. No injuries or damages have been reported from the Chiapas event.

31 sources. https://clstr.news/cluster/chiapas-mexico-earthquake-magnitude-52-tremor-hits-near-puerto-madero

### 2026-08-13: Seismic activity reported across Mexico, Colombia, and Chile

Increased seismic activity has been reported across Mexico, Colombia, Chile, and Guatemala, including a 5.2 magnitude earthquake in Chiapas and ongoing aftershocks in Colombia.

22 sources. https://clstr.news/cluster/chiapas-mexico-experiences-magnitude-50-and-42-earthquakes

### 2026-08-13: Central America earthquake felt in El Salvador, Honduras, and Nicaragua

A magnitude 5.5 to 5.7 earthquake struck off the coast of El Salvador, felt in Honduras and Nicaragua. No casualties, damage, or tsunami threats have been reported by regional authorities.

27 sources. https://clstr.news/cluster/central-america-earthquake-hits-off-coast-with-magnitude-58

### 2026-08-10: Mexico records seismic activity in Guerrero and Chiapas

Mexico recorded several moderate earthquakes on August 10, 2026, including a 4.4 magnitude tremor in Guerrero and activity in Chiapas, with no reported injuries or damage.

8 sources. https://clstr.news/cluster/mexico-records-seismic-activity-in-guerrero-and-chiapas

### 2026-08-09: Seismic activity reported in Peru and Guatemala

Seismic activity has been reported in Peru and Guatemala, with a 4.3 magnitude tremor occurring in the Pacific Ocean near Guatemala. No major damage or injuries have been reported.

3 sources. https://clstr.news/cluster/seismic-activity-reported-in-peru-and-guatemala

### 2026-08-07: Mexico reports high seismic activity including 4.0 magnitude quake in Guerrero

Mexico recorded 3,585 tremors in July 2026, headlined by a 7.4 magnitude quake in Chiapas. A more recent 4.0 magnitude tremor occurred in Guerrero on August 7 with no reported damage.

4 sources. https://clstr.news/cluster/mexico-reports-high-seismic-activity-including-40-magnitude-quake-in-guerrero

### 2026-08-03: Strong earthquakes shake Chiapas and Oaxaca regions of Mexico

Mexico experienced a series of magnitude‑4‑plus earthquakes on Aug 3‑4 near Mapastepec (Chiapas) and Salina Cruz (Oaxaca); no damage was reported.

3 sources. https://clstr.news/cluster/strong-earthquakes-shake-chiapas-and-oaxaca-regions-of-mexico

### 2026-07-31: Mexico experiences seismic swarm with magnitude 5.0 quake off Chiapas coast

On July 31, Mexico’s Pacific coast saw a seismic swarm highlighted by a 5.0 M quake 165 km SW of Mapastepec, Chiapas, with dozens of smaller tremors; no damage reported.

7 sources. https://clstr.news/cluster/mexico-experiences-seismic-swarm-with-magnitude-50-quake-off-chiapas-coast

### 2026-07-29: Guatemala Conred reports surge in earthquakes and forecast of below‑normal rains

Guatemala's Conred reported 60 quakes in 24 hours, the strongest at magnitude 5.9, and warned that the upcoming rainy season will be drier than normal, with strong El Niño likely extending heat and raising def‑

5 sources. https://clstr.news/cluster/guatemala-conred-reports-surge-in-earthquakes-and-forecast-of-belownormal-rains

### 2026-07-14: Mexico-Guatemala Earthquake of Magnitude 5.4 Shakes Southern Mexico and Western Guatemala

Magnitude 5.0 quake in Chiapas, Mexico caused no damage; a nearby 5.4 quake off Mexico's Pacific coast was felt in western Guatemala, where soil conditions amplified shaking.

2 sources. https://clstr.news/cluster/mexico-guatemala-earthquake-of-magnitude-54-shakes-southern-mexico-and-western-guatemala

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Cite as: Seismic activity in Mexico, Central America and Peru. CLSTR, https://clstr.news/situations/lowmagnitude-earthquakes-in-latin-america
