A M6.2 earthquake struck off the coast of Costa Rica on October 12, 2024, at a shallow depth of 18 kilometers, affecting approximately 1.9 million individuals. No tsunami threat was reported, and the risk of casualties is deemed low, although the region’s infrastructure, often made up of vulnerable building types, poses ongoing concerns for earthquake resilience.
On October 12, 2024, at 17:43 local time, a moderate and shallow earthquake was reported off the coast of Costa Rica, with a magnitude of 6.2 as per the United States Geological Survey (USGS). The earthquake occurred at a depth of 18 kilometers (11.2 miles), with both the USGS and the European-Mediterranean Seismological Centre (EMSC) confirming the same parameters. The epicenter was located approximately 41.4 kilometers (25.7 miles) northwest of Tamarindo, a town with a population of approximately 6,375 people, and 67 kilometers (41.6 miles) west-northwest of Santa Cruz, with a population of about 12,281. The region of Liberia, which houses approximately 45,380 residents, was situated roughly 75.9 kilometers (47.1 miles) west of the epicenter. An estimated 69,000 individuals experienced moderate shaking, while around 1,856,000 felt lighter tremors. Fortunately, authorities have indicated that there is no tsunami threat resulting from this seismic event. The USGS has issued a Green alert level regarding potential shaking-related fatalities and economic losses associated with this earthquake, suggesting a low probability of significant casualties and damage in the affected areas. It is important to note that although the risk of severe consequences is considered low, the buildings in this region are generally vulnerable to earthquake impacts. Predominantly, construction types include mud walls and adobe blocks, which are known to be susceptible to damage during seismic activities. Historical events highlight that the area has faced various secondary hazards due to previous earthquakes, including landslides and liquefaction, which may exacerbate losses during such incidents. While the overall risk from this particular earthquake appears minimal, continuous monitoring and preparedness efforts remain essential for the safety and resilience of the local population.
The occurrence of earthquakes in Costa Rica and its surrounding regions is not uncommon, given its position along the Pacific Ring of Fire, a seismically active zone characterized by a high frequency of volcanic and tectonic activity. The geological setting of Costa Rica is marked by several fault lines and the tectonic interactions between multiple plates, which contribute to the propensity for earthquakes. Understanding the potential impact of seismic activity not only involves recognizing the risks associated with the geological framework but also encompasses considerations regarding the vulnerability of infrastructure and populations residing in these areas. The potential for secondary hazards such as landslides and liquefaction further complicates the assessments of risk, particularly in regions with different building materials and quality. Given these factors, earthquake preparedness and risk management are critical to minimizing potential harm. Strategies may include enhancing building codes, public awareness initiatives, and effective emergency response planning.
In conclusion, the recent M6.2 earthquake off the coast of Costa Rica highlights the ongoing seismic challenges faced by the region. While the immediate threat level appears low, with no tsunami warning issued and a limited risk of casualties or damage, the vulnerability of many structures remains a concern. Continuous preparedness efforts and monitoring are essential to effectively mitigate future risks associated with seismic activity in this area.
Original Source: watchers.news
