Vegas Quake
4.1 Magnitude Earthquake Shakes Las Vegas Valley, No Major Damage Reported
A preliminary earthquake reported near Las Vegas Thursday afternoon registered about 4.1 magnitude based on early readings, striking around 1:47 p.m. and centered roughly 14 miles west of the city, though officials said details were still being refined. Other reports from the U.S. Geological Survey put a 3.8-magnitude quake at around 1:48 p.m. near Summerlin and southeast of the city, with hundreds to thousands of people saying they felt shaking. No immediate injuries, major damage, or evacuation orders were reported, and authorities urged residents to be ready for potential aftershocks. Geologists noted Las Vegas is in the Basin and Range geologic province with multiple active faults, but it is not on a single major boundary fault like California’s San Andreas. Seismologists said the immediate aftershock outlook suggests only a low likelihood of a significantly larger quake in the near term, while monitoring continues and shake-intensity maps may be updated.
Key Points
Early seismic estimates put the quake at magnitude 4.07 and said it was detected using data from 39 monitoring stations; the USGS/monitoring status was listed as “preliminary/undetermined,” meaning scientists were still assessing its exact characteristics.
The USGS reported the quake occurred at an approximate depth of 7 kilometers beneath the Earth’s surface and received more than 2,500 user reports from people who felt shaking.
Nevada Seismological Laboratory director Christie Rowe (UNR) was brought in to discuss the earthquake after it was felt in the Las Vegas area near Summerlin.
The Las Vegas quake was described as part of a broader run of moderate earthquakes across the West, including a magnitude 5.7 quake off the coast near the Mendocino Triple Junction and additional events near Oregon/California; USGS guidance included staying indoors (“get under a table, and hang on”) and avoiding going outside or running downstairs while shaking.
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