# Mexico‑Guatemala quakes & Peru seismic activity

> Live situation record from CLSTR: https://clstr.news/situations/colombia-weather-and-marine-warnings
> Updated: 2026-09-06T16:47:59.000Z. Sources: 548. Developments: 22.

The region continues to experience significant seismic events. On 17 July 2026, a shallow magnitude 7.3 earthquake struck the Pacific coast near Tapachula, Chiapas, and the adjacent Guatemalan shoreline. Tsunami alerts were issued for Mexico, Guatemala, and El Salvador. Authorities reported no casualties, but cracks appeared in several public buildings in Mexico and minor infrastructure damage was noted in Guatemala. In Peru, the Junín region has been hit by a series of earthquakes impacting the Chupaca and Huancayo provinces. A magnitude 5.0 earthquake centered near Chupaca on 6 August 2026 caused significant disruption, including injuries to at least 15 people and the collapse of over 125 homes, particularly adobe structures in the Canipaco valley. Many of these buildings had already been weakened by a prior magnitude 5.4 earthquake on 18 July. Seismic activity has triggered rockslides and landslides, blocking road infrastructure and transit between districts. The Instituto Geofísico del Perú (IGP) has linked this activity to the reactivation of the Altos del Mantaro fault. By 8 August, geological instability in the Soccos sector of the Chupuro district prompted approximately 80 residents of the Unión Progreso neighborhood to consider evacuation due to ongoing rockslide risks. Local reports indicated a fatal accident where a falling rock struck a vehicle, killing the driver and injuring three others. Additionally, seismic activity has damaged agricultural infrastructure, specifically pipes connected to a local reservoir, threatening water supplies for crops. In response, the regional government launched the Llamkasun Perú reconstruction programme and announced plans to declare several districts in Junín and Huancavelica in a state of emergency. On 18 August, a magnitude 5.8 earthquake (recorded as 5.7 by Guatemalan authorities) struck the Mexico-Guatemala border. In late August, Peru experienced further tremors across multiple regions, including Tumbes, Arequipa, Tacna, and Moquegua.

## Claims

- No deaths, injuries, or material damage were reported. (disputed by 28 sources)
- Four people were injured: two adults aged 49 and 63, and a 10‑year‑old child. (disputed by 3 sources)
- The earthquake in Arequipa did not pose a tsunami risk. (disputed by 2 sources)
- The earthquake generated tsunami alerts for the region. (disputed)
- A magnitude‑5.7 (or 5.6) earthquake struck near Pucallpa, Peru on 30 July 2026 at 19:58 local time. (corroborated by 28 sources)
- GFZ reported the earthquake depth as approximately 145 km; USGS reported about 154 km. (corroborated by 25 sources)
- The quake was felt lightly in Lima, with intensity IV reported in Pucallpa. (corroborated by 18 sources)
- The epicentre was located about 42 km northeast of Pucallpa, in the Coronel Portillo province of Ucayali. (corroborated by 18 sources)
- The seismic activity is associated with the meeting of the Nazca and South American tectonic plates. (corroborated by 16 sources)
- A magnitude 5.0 earthquake occurred on 6 August 2026 in Junín, Peru, epicentre 19 km southwest of Chupaca. (corroborated by 14 sources)
- The quake had a depth of 9 km. (corroborated by 14 sources)
- Intensity reached grade V in Chupaca. (corroborated by 14 sources)

## Timeline

### 2026-09-06: Peru reports earthquakes and major fire in Lince

Peru reported three medium-intensity earthquakes during the early morning, alongside a major fire in Lince that required over 10 firefighting units.

2 sources. https://clstr.news/cluster/peru-reports-earthquakes-and-major-fire-in-lince

### 2026-09-01: Peruvian agencies assess seismic risk in Mantaro Valley

Peruvian technical agencies are evaluating seismic risks and ground displacements in the Mantaro Valley to determine necessary reconstruction or resettlement measures for affected families.

2 sources. https://clstr.news/cluster/peruvian-agencies-assess-seismic-risk-in-mantaro-valley

### 2026-08-31: Chupaca earthquake causes ongoing hardship in Peru

A 5.1 magnitude earthquake caused by the Alto Mantaro fault struck Chupaca, Peru, leaving residents in districts like Chongos Bajo facing ongoing housing damage and economic hardship.

2 sources. https://clstr.news/cluster/chupaca-earthquake-causes-ongoing-hardship-in-peru

### 2026-08-26: Peru experiences multiple earthquakes across several regions

Peru reports frequent seismic activity across several regions, including Tumbes and Arequipa. The government has allocated S/88.7 million to assist families affected by previous major tremors in Junín.

27 sources. https://clstr.news/cluster/peru-experiences-three-earthquakes-in-tumbes-junn-and-hunuco

### 2026-08-18: Earthquake strikes Mexico-Guatemala border

A magnitude 5.8 earthquake struck the maritime border between Mexico and Guatemala, with the epicenter located southwest of Ciudad Hidalgo, Michoacán.

2 sources. https://clstr.news/cluster/earthquake-strikes-mexico-guatemala-border

### 2026-08-08: Families in Junín, Peru, consider evacuation due to rockslide risks

Approximately 80 residents in Junín, Peru, are planning to flee their homes due to fears of ongoing rockslides and seismic activity following a fatal accident in the Soccos sector.

2 sources. https://clstr.news/cluster/families-in-junn-peru-consider-evacuation-due-to-rockslide-risks

### 2026-08-06: Junín region in Peru hit by series of earthquakes

Multiple earthquakes, including a magnitude 5.0 tremor, have struck Junín, Peru, leaving at least 15 injured and over 125 homes destroyed or uninhabitable near Chupaca and Huancayo.

22 sources. https://clstr.news/cluster/magnitude-39-earthquake-strikes-carchi-ecuador-no-injuries-reported

### 2026-07-30: Peru‑Brazil border quake of magnitude 5.6 felt in Acre, Brazil

A 5.6 quake near Pucallpa was felt in Brazil’s Acre with no damage; a separate 5.7 tremor in Ucayali was also felt in Lima, both causing no casualties.

42 sources. https://clstr.news/cluster/junn-peru-experiences-magnitude-37-earthquake-in-chupaca

### 2026-07-28: Magnitude 7.3 quake rattles Mexico‑Guatemala Pacific coast, triggers tsunami alerts

A magnitude 7.3 earthquake hit the Mexico‑Guatemala Pacific coast on 17 July 2026, depth ~15 km, prompting tsunami alerts, aftershocks, and a response from President Claudia Sheinbaum and Chiapas Governor Edu­r

7 sources. https://clstr.news/cluster/earthquakes-in-mexicos-zacatecas-and-guatemalas-quetzaltenango-cause-no-injuries-or-damage

### 2026-07-25: Guatemala records 478 aftershocks following July 17 magnitude‑7.4 quake

Insivumeh logged 478 aftershocks since the July 17 magnitude 7.4 quake in Guatemala, with 34 felt by the public; the latest notable tremor was magnitude 5.5 on July 24, and monitoring remains ongoing.

8 sources. https://clstr.news/cluster/guatemala-records-478-aftershocks-following-july-17-magnitude74-quake

### 2026-07-23: Peru's Junín earthquake leaves over 2,000 victims as president‑elect vows site visit

A 5.1‑magnitude quake in Chupaca, Junín left over 2,000 people affected; data validation is ongoing and president‑elect Keiko Fujimori plans a site visit to address the disaster.

3 sources. https://clstr.news/cluster/perus-junn-earthquake-leaves-over-2000-victims-as-presidentelect-vows-site-visit

### 2026-07-21: Junín, Peru earthquake kills five, leaves thousands displaced

A 5.4‑magnitude quake in Junín, Peru, caused by the Altos del Mantaro fault, killed five, injured dozens, destroyed 724 homes and historic churches, and left over 2,000 people displaced.

31 sources. https://clstr.news/cluster/peru-declares-emergency-after-51-quake-kills-six

### 2026-07-20: Peru's Junín orders demolition of 54 quake‑damaged homes; Lima's Rímac faces thousands of unsafe historic houses

Junín province begins demolishing 54 quake‑damaged homes, while Lima's Rímac district reports 4,700 historic houses at risk of collapse, endangering over 30,000 residents.

2 sources. https://clstr.news/cluster/perus-junn-orders-demolition-of-54-quakedamaged-homes-limas-rmac-faces-thousands-of-unsafe-historic-

### 2026-07-20: Mexico-Guatemala Border 7.4‑Magnitude Earthquake Shakes Region

A 7.4‑magnitude quake off Mexico’s Chiapas coast near the Guatemala border on 17 July was felt across the region; minor damage and 85 people affected, but no major casualties reported.

6 sources. https://clstr.news/cluster/strong-earthquake-strikes-mexico-guatemala-border-region

### 2026-07-20: Peru's Mantaro Valley earthquake leaves dozens dead, families await aid

Mantaro valley earthquake in Peru kills five, injures 32, displaces nearly 400; authorities pledge aid but many families lack sufficient tents and shelter.

2 sources. https://clstr.news/cluster/perus-mantaro-valley-earthquake-leaves-dozens-dead-families-await-aid

### 2026-07-20: Guatemala tracks aftershocks after July 17 magnitude 7.4 quake

Following a July 17 magnitude‑7.4 quake, Guatemala's Insivumeh logged over 300 aftershocks and a magnitude‑5.5 tremor on July 20, with no reported casualties.

5 sources. https://clstr.news/cluster/guatemala-tracks-aftershocks-after-july-17-magnitude-74-quake

### 2026-07-18: Peru Junín earthquake kills at least six, triggers emergency response

A 5.1‑5.5 quake hit Junín, Peru on 18 July, killing six, injuring over 30 and displacing 300, leading to a state of emergency and humanitarian aid.

234 sources. https://clstr.news/cluster/chiapas-mexico-hit-by-74magnitude-earthquake-137-aftershocks

### 2026-07-16: Mexico's 7.4 magnitude quake spurs tsunami alerts across Central America

A 7.3‑7.4 quake off Chiapas triggered tsunami alerts and evacuations in Mexico, Guatemala and El Salvador, with no major damage reported.

285 sources. https://clstr.news/cluster/new-zealand-south-island-tsunami-warning-issued-after-earthquake

### 2026-06-30: Guerrero, Mexico experiences earthquake swarm and coastal swell warning

Mexico’s Guerrero state saw a June‑30 quake swarm (max 3.9 M) and a July‑1 swarm of eight 2‑3.6 M tremors, with no damage reported, and a civil‑protection warning for a coastal swell lasting up to 72 hours.

3 sources. https://clstr.news/cluster/guerrero-state-issues-seaswell-warning-for-14-coastal-municipalities

### 2026-06-18: Hidalgo, Mexico experiences two shallow earthquakes, no damage reported

Two shallow earthquakes (M 4.0 and M 3.8) struck Hidalgo, Mexico early Thursday; no injuries or damage were reported.

4 sources. https://clstr.news/cluster/hidalgo-mexico-experiences-two-shallow-earthquakes-no-damage-reported

### 2026-06-13: Magnitude 5.2 quake hits near San Marcos, Guerrero, felt in Mexico City

A magnitude 5.2 quake near San Marcos, Guerrero on June 13, 2026 was felt in Mexico City but caused no damage and did not trigger a seismic alert; it came just before the World Cup opening.

2 sources. https://clstr.news/cluster/magnitude-52-quake-hits-near-san-marcos-guerrero-felt-in-mexico-city

### 2026-06-11: Guerrero, Mexico 5.2‑5.3 quake felt across Mexico City and central states, no damage reported

A 5.2‑5.3 quake struck Guerrero on 13 June 2026, felt in Mexico City and central states; authorities report no injuries or major damage.

14 sources. https://clstr.news/cluster/ecuador-issues-high-surf-alert-as-waves-rise-to-23-meters

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Cite as: Mexico‑Guatemala quakes & Peru seismic activity. CLSTR, https://clstr.news/situations/colombia-weather-and-marine-warnings
