Strong M6.2 Earthquake Strikes Off the Coast of Costa Rica

A M6.2 earthquake hit off the coast of Costa Rica on October 12, 2024, at a shallow depth of 18 km, affecting an estimated 1.9 million people. The event did not generate a tsunami threat, and while a low likelihood of serious casualties and damage was reported, many structures in the area remain susceptible to seismic activity.

On October 12, 2024, at 17:43 local time, a substantial earthquake measuring 6.2 on the moment magnitude scale struck off the coast of Costa Rica, as reported by the United States Geological Survey (USGS). This seismic event occurred at a shallow depth of 18 kilometers (11.2 miles). The European-Mediterranean Seismological Centre (EMSC) corroborated the magnitude and depth measurements. The earthquake’s epicenter was detected approximately 41.4 kilometers (25.7 miles) northwest of Tamarindo, a coastal town with a population of 6,375, and about 75.9 kilometers (47.1 miles) west of Liberia, which has a larger population of 45,380, situated in Guanacaste Province. According to estimations, around 69,000 residents experienced moderate shaking, with an additional 1,856,000 encountering lighter tremors. Fortunately, this natural event did not pose a tsunami threat. In response to the earthquake, the USGS issued a Green alert indicating a low likelihood of fatalities and economic damage, although they noted that the region’s population resides within structures that are predominantly vulnerable to seismic shaking, such as those constructed with mud walls and adobe blocks. Previous seismic activities in the area have resulted in secondary hazards including landslides and liquefaction, which may have contributed to potential impacts.

Seismic activity in Costa Rica is a common occurrence due to its position along the Pacific Ring of Fire, where tectonic plates frequently interact. Earthquakes can pose significant risks due to the construction types prevalent in many communities, particularly ones that lack proper earthquake-resistant designs. The country’s vulnerability is underscored by its reliance on traditional building methods. Understanding the patterns of seismic activity and the potential impacts is crucial for preparing and mitigating future risks to the population.

In conclusion, the M6.2 earthquake that struck off the coast of Costa Rica on October 12, 2024, highlighted the ongoing seismic risks faced by the region. Though major structural devastation and casualties appear unlikely, the earthquake serves as a stark reminder of the vulnerabilities present in many of Costa Rica’s communities, necessitating continued monitoring and resilience-building measures.

Original Source: watchers.news