Recent earthquake activity across the United States has been relatively mild, with most events registering below magnitude 5. A magnitude 4.1 earthquake was reported near Fritz Creek in Alaska's Kenai Peninsula earlier today. This follows another 4.2 magnitude earthquake in Sand Point, Alaska yesterday, May 16th. Both events occurred at significant depths, limiting their surface impact.
In the continental United States, a small swarm of earthquakes has been detected at Yellowstone National Park over the past day. The United States Geological Survey has identified approximately 20 small earthquakes in the area, with the largest measuring around 2.1 in magnitude. This activity appears less intense than a previous swarm recorded earlier this month on May 7th, which produced hundreds of minor earthquakes over an eight to nine hour period near Maple Creek.
California has experienced typical low-level seismic activity along the West Coast, including a 1.8 magnitude earthquake in the Kernville area just north of the Garlock fault shear zone on May 16th. Meanwhile, Puerto Rico registered a 3.1 magnitude earthquake today near Tallaboa, at a depth of 11 kilometers.
Globally, several significant earthquakes have occurred this month. Myanmar experienced a 5.2 magnitude earthquake today near Kyaukse in the Mandalay region. Earlier this month on May 14th, a 7.4 magnitude earthquake was recorded in the South Atlantic Ocean. May has also seen notable seismic events in the South Sandwich Islands, Drake Passage, and the Kermadec Islands region.
Looking at the broader picture for 2025, major earthquakes have included a devastating 7.7 magnitude event in Myanmar's Sagaing region on March 28th that resulted in 5,456 fatalities, and a 7.1 magnitude earthquake in Tibet on January 7th that caused between 126 and 400 deaths. Other significant events included a 7.6 magnitude earthquake near the Swan Islands off Honduras on February 8th and a 7.0 magnitude earthquake near Tonga on March 30th, though neither resulted in reported casualties.
Overall, current earthquake activity in the United States remains within normal parameters, with most events occurring in known seismically active regions and causing minimal disruption.