Moderate Earthquake Shakes Drake Passage
A moderate earthquake struck the Drake Passage on Friday, February 27, 2026, between Antarctica and Tierra del Fuego. The quake, registering 5.3 on the Richter scale, occurred at 18:31 UTC (15:31 local Argentina time), according to the United States Geological Survey (USGS).
Location and Depth of the Earthquake
The epicenter of the earthquake was located at coordinates 60.299° South, 61.262° West, at a depth of 4.9 kilometers. This relatively shallow depth can sometimes amplify the shaking felt in nearby areas.
Recent Seismic Activity in the Region
This latest seismic event follows a 4.6 magnitude earthquake recorded in the same region on January 13, 2026. The USGS data indicates a pattern of seismic activity in the Drake Passage, with 120 earthquakes of magnitude 1.5 or greater recorded in the past 365 days. A 7.6 magnitude earthquake was the largest recorded this year.
Earthquake Preparedness in Ushuaia
In response to the recent activity, the Municipal Civil Defense of Ushuaia has issued recommendations to the community on how to prepare for and respond to earthquakes. These guidelines are crucial for residents in areas prone to seismic events.
Understanding the Drake Passage and Seismic Activity
The Drake Passage is a body of water between South America and Antarctica, known for its rough seas and strong currents. It’s a geologically active region due to the complex interaction of tectonic plates. The area lies near the boundary of the Scotia Plate and the South American Plate, making it susceptible to earthquakes.
The Role of Tectonic Plates
The Scotia Plate, a minor tectonic plate, is being subducted under the South American Plate. This process generates stress and strain in the Earth’s crust, leading to frequent earthquakes. The ongoing movement and collision of these plates contribute to the seismic activity observed in the Drake Passage.
Monitoring and Data Sources
Real-time earthquake data for the Drake Passage is primarily sourced from the USGS and Earthquake Track. These organizations utilize a network of seismographs to detect, measure, and locate earthquakes around the globe. Earthquake Track provides updated information on recent earthquakes in the region.
Recent Earthquakes in Drake Passage (Past 7 Days)
- February 27, 2026: 5.3 magnitude
- January 14, 2026: 4.6 magnitude
- January 12, 2026: 4.6 magnitude
FAQ
What causes earthquakes in the Drake Passage?
Earthquakes in the Drake Passage are primarily caused by the interaction and subduction of the Scotia and South American tectonic plates.
How often do earthquakes occur in the Drake Passage?
The Drake Passage experiences frequent seismic activity, with approximately 1 earthquake (magnitude 1.5 or greater) occurring in the past 24 hours, and 120 in the past 365 days.
Is the earthquake a threat to populated areas?
While the earthquake was moderate in magnitude, its remote location in the Drake Passage minimizes the direct threat to major populated areas. However, local communities like Ushuaia are advised to remain prepared.
Where can I identify more information about earthquakes?
You can find more information about earthquakes from the USGS (https://earthquaketrack.com/r/drake-passage/recent) and Earthquake Track.
Did you know? The Drake Passage is known as one of the roughest seas in the world, making earthquake monitoring and research particularly challenging.
Stay informed about seismic activity in the Drake Passage and prioritize earthquake preparedness. Explore additional resources from the USGS and local civil defense organizations to ensure your safety.
