• Rare M3.8 earthquake hits Maine, felt in Boston and beyond

    A shallow earthquake registered by the USGS as M3.8 hit near the coast of York Harbor, Maine at 15:22 UTC (10:22 local time) on Monday, January 27, 2025. The agency is reporting a depth of 13.2 km (8.2 miles). The quake was felt as far away as Boston and beyond.

  • Earthquake swarm SW of Adak Islands, Alaska

    An earthquake swarm has been occurring southwest of Adak Islands, Alaska, since December 8, 2024, beginning with M6.3 at a depth of 18 km (11 miles). The swarm includes multiple significant earthquakes, including two M6.3 events, an M6.1, and numerous aftershocks up to M5.8.

  • Earthquake swarm rattles Death Valley, California

    An earthquake swarm consisting of 64 recorded events has been occurring in the Death Valley region of California since October 24, 2024, with magnitudes ranging from 0.5 to 4.7 and focal depths reaching a maximum of 15.9 km (9.9 miles). The seismic activity is characterized by shallow to mid-crustal depths, typical of intraplate swarms in tectonically active regions.

  • 2024 sees Southern California’s highest M4+ earthquake count since 1988, return to long-term average

    Since 1932, Southern California has averaged 10 – 12 M4 earthquakes annually. However, in the last 20 years, this number dropped to around 5 per year. In 2024, with 13 M4s already recorded, the region is seeing a return to its long-term average. Southern California is experiencing a significant increase in seismic activity this year,…

  • Shallow M4.4 earthquake hits Los Angeles, California

    A shallow earthquake registered by the USGS as M4.4 hit near Highland Park and South Pasadena, Los Angeles, California at 19:20 UTC (12:20 local time) on August 12, 2024. The agency is reporting a depth of 11 km (6.8 miles).