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Pacific Northwest Seismic Network

USGS Earthquake News

  • Earthquake Forecast for the Salton Sea Swarm of August 2020
    08/13/2020:Map showing the Salton Sea, CA earthquake swarm of August 2020 (as of August 13, 2020 12pm Pacific). Circles are earthquake locations, red indicates an earthquake in the past hour, orange the past 24 hours, and yellow the past 7 days. …
    - 3 days ago 10 Aug 20, 10:30pm -
  • Magnitude 5.1 Earthquake Near Sparta, North Carolina
    The earthquake struck about two miles southeast of Sparta. The event was widely felt, with more than 80,000  “Did You Feel It?” reports submitted as of 1 p.m. eastern daylight time. Most reported weak to light shaking while those closest to the…
    - 4 days ago 9 Aug 20, 5:00pm -
  • A Research Retrospective: Offshore Fault Mapping of the San Andreas
    In the early morning hours of April 18th, 1906, an alarming shake and rumble underfoot along the coastal areas of northern California gave way to a living nightmare of unprecedented devastation.  At 5:12am, what would be considered one of the most…
    - 10 days ago 3 Aug 20, 4:00pm -
  • Auroras and Earthquakes: Strange Companions

    - 14 days ago 31 Jul 20, 2:00pm -
  • Remembering Ridgecrest
    Feeling the ground beneath you shake and seeing the environment around you roll and rock can leave one feeling wary of what is to come next. This was certainly the case for the community of Ridgecrest, California, on July 4th, 2019, as they ex…
    - 44 days ago 1 Jul 20, 2:00pm -
  • June 23, 2020 Oaxaca, Mexico Earthquake
    The earthquake struck about seven miles southwest of Santa María Zapotitlán, Mexico. Perceived shaking for the quake was very strong. The event was widely felt, with more than 600 "Did You Feel It?" reports thus far submitted.  USGS…
    - 51 days ago 23 Jun 20, 4:45pm -
  • The Blind Zone of Earthquake Early Warning
     The 1994 M6.7 Northridge, CA Shakemap showing MMI (Modified Mercalli Intensity) levels of shaking, with the earthquake epicenter shown as a red star, and the fault shown as a rectangle. The innermost dotted circle doesn’t include the communica…
    - 74 days ago 1 Jun 20, 1:00pm -
  • M6.5 Monte Cristo Range Earthquake
    Seismic instruments indicate the earthquake originated at a depth of  1.7 miles (2.8 km). The quake occurred as the result of strike slip faulting in the shallow crust of the North America plate.The earthquake struck about 34.7 miles (56 km) west o…
    - 91 days ago 15 May 20, 10:15am -
  • Announcing Gavin Hayes as USGS Senior Science Advisor for Earthquake & Geologic Hazards
    Photograph of Gavin P Hayes (Credit: Gavin Hayes, USGS. Public domain.)Gavin comes to this position having spent the past 12 years as a research geophysicist at the USGS National Earthquake Information Center (NEIC) within the Geologic Hazards…
    - 93 days ago 12 May 20, 2:30pm -
  • Magnitude 5.4 Earthquake Felt in Puerto Rico
    Around 7 a.m. local time May 2, a magnitude 5.4 earthquake struck offshore south of Tallaboa, Puerto Rico on the southern side of the island. There are media reports of local damage to some older structures and widespread power outages across Puerto…
    - 2 May 20, 8:45pm -