Earthquake Shakes Las Vegas Valley, Sparks Hundreds of Reports Residents across the Las Vegas Valley experienced shaking on Thursday afternoon after an earthquake struck near Summerlin, prompting thousands of reports to the U.S. Geological Survey (USGS). The tremor occurred shortly before 2 p.m. on June 4, with its epicenter located approximately 7 miles northwest of Summerlin South. Initial measurements indicated the earthquake ranged between magnitudes 3.8 and 4.1, strong enough to be felt widely across Southern Nevada. Within minutes of the quake, over 1,000 reports were submitted to the USGS from across the region. Most accounts described light shaking, corresponding to Level IV on the Modified Mercalli Intensity Scale. This level of shaking is typically felt indoors by many people, causing windows, dishes, and doors to rattle while parked vehicles rocked slightly. Reports also came from communities outside Las Vegas, including Pahrump near the Nevada-California border. Authorities reported no immediate injuries or significant damage following the earthquake. The tremor originated near Summerlin South, a residential area along the western edge of the Las Vegas Valley near Red Rock Canyon. Seismologists noted that magnitude estimates may still be adjusted as additional data from monitoring stations is analyzed. Aftershock activity remained elevated in the region. USGS forecasting models suggested a moderate chance of further seismic events. Scientists estimated a roughly 26% probability of an aftershock measuring magnitude 3.0 or higher within the next 24 hours. The likelihood of a magnitude 4.0 or greater aftershock was around 5%, while the chance of a magnitude 5.0 event remained below 1%. The agency also noted a 4% probability of a larger earthquake occurring in the same timeframe.#usgs #nevada #las_vegas_valley #summerlin_south #basin_and_range_province
