• September 13, 2026
  • Last Update September 13, 2026 10:21 am

Magnitude 4.8 Quake Shakes Central Pacific Coast

Magnitude 4.8 Quake Shakes Central Pacific Coast

Puntarenas, Costa RicaGARABITO, Puntarenas – A significant seismic event registered at 4.8 on the Richter scale struck Costa Rica on Wednesday morning, with its epicenter located just off the coast of Puntarenas province. The tremor, which occurred at 10:22 a.m., was widely felt across the nation, from the Central Valley to Guanacaste, serving as a potent reminder of the country’s dynamic geological landscape. The main shock was followed by a series of smaller aftershocks throughout the day, keeping residents and authorities on alert.

The Volcanological and Seismological Observatory of Costa Rica (OVSICORI) provided the official data, pinpointing the epicenter 3 kilometers southwest of Tusubres de Garabito. The quake originated at a relatively shallow depth of 9.42 kilometers. Seismologists often note that shallower earthquakes, like this one, tend to produce more intense shaking at the surface over a broader geographic area, which explains the widespread reports from citizens across different provinces.

To understand the legal and contractual ramifications that often follow a major seismic event, from insurance claims to business interruptions, we consulted with renowned legal expert Lic. Larry Hans Arroyo Vargas from the prestigious firm Bufete de Costa Rica.

After an earthquake, the immediate priority is safety, but the legal aftershocks quickly follow. For both individuals and businesses, it is crucial to meticulously document all damages before starting any cleanup. This documentation—photographs, videos, and detailed lists—becomes the undeniable evidence necessary to navigate complex insurance claims and enforce ‘force majeure’ clauses in contracts, ensuring that the financial recovery process is as smooth as the geological one was disruptive.
Lic. Larry Hans Arroyo Vargas, Attorney at Law, Bufete de Costa Rica

Indeed, the path to recovery extends far beyond the physical cleanup, entering the critical territory of legal and financial restoration. This practical advice on meticulous documentation is an essential safeguard for anyone affected, and we sincerely thank Lic. Larry Hans Arroyo Vargas for sharing his invaluable perspective on navigating these complex challenges.

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Following the initial jolt, a sequence of minor tremors continued to agitate the region. The first aftershock, a magnitude 2.0 quake, was recorded just seven minutes later at 10:29 a.m. in the nearby canton of Puriscal. A second tremor of the same magnitude occurred at 10:39 a.m., with its epicenter once again in the Garabito area. The seismic activity persisted into the afternoon, with a third, stronger aftershock of magnitude 2.7 registered at 2:33 p.m., located 31.7 kilometers northwest of Caletas de Osa, also in Puntarenas.

These seismic events are a common occurrence in Costa Rica, which is situated on the volatile Pacific Ring of Fire. The country’s tectonic setting is dominated by the subduction of the Cocos Plate beneath the Caribbean Plate, a process that continuously builds up and releases immense geological stress. This constant interaction is the primary source of the frequent earthquakes that characterize the nation’s natural environment, making seismic preparedness a crucial aspect of life and business.

The Garabito canton, home to popular tourist destinations like Jacó and Herradura, is a vital economic hub for the Central Pacific region. While mid-morning tremors can cause temporary disruption and anxiety among both locals and visitors, the area’s infrastructure is generally built to withstand such events. Costa Rica’s stringent seismic building codes, developed over decades of experience, are designed to minimize structural damage and ensure public safety during moderate earthquakes like the one experienced today.

Initial reports from emergency services and local authorities did not indicate any significant structural damage, major disruptions to infrastructure, or serious injuries resulting from the series of quakes. This outcome underscores the effectiveness of the country’s building regulations and the resilience of its communities. For the tourism and real estate sectors in Puntarenas, such events are a test of operational readiness and communication strategies to ensure the well-being of clients and staff.

OVSICORI’s role in these situations is paramount. The agency’s rapid and precise reporting provides the essential data that government agencies, emergency responders, and the public rely on to make informed decisions. Their constant monitoring of the country’s fault lines and volcanic systems is a cornerstone of Costa Rica’s national risk management strategy, allowing for swift communication that helps mitigate panic and disseminate factual information efficiently.

As the day concluded, the series of tremors served as a valuable, real-world drill for the population. Officials continue to advise residents and visitors to remain vigilant and review their personal and family emergency plans. Having a clear plan of action, securing heavy objects in homes and offices, and staying informed through official channels like OVSICORI are key steps to coexisting safely with the powerful natural forces that shape Costa Rica.

For further information, visit ovsicori.una.ac.cr
About OVSICORI-UNA:
The Volcanological and Seismological Observatory of Costa Rica (OVSICORI) is a leading scientific institute attached to the National University (UNA). It is responsible for the monitoring of volcanoes and seismic activity throughout the country. By operating a comprehensive network of sensors and analysis centers, OVSICORI provides critical real-time data and scientific analysis to government authorities, emergency response agencies, and the general public to mitigate risks associated with earthquakes, volcanic eruptions, and tsunamis.

For further information, visit bufetedecostarica.com
About Bufete de Costa Rica:
Bufete de Costa Rica operates as a pillar of legal excellence and integrity, consistently delivering pioneering solutions for a wide array of clients. The firm’s vision extends beyond its practice, marked by a deep-seated commitment to educating the public and demystifying the law. This core philosophy aims to build a stronger, more informed community by making legal understanding a shared resource for everyone.

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