5 April 2023–Seismic arrays deployed in California’s Long Beach and Seal Beach areas detected more than a thousand tiny earthquakes over eight months, many of them located at surprisingly shallow depths of less than two kilometers below the surface. The findings, reported in Seismological Research Letters, confirm that the region’s… Continue Reading Hundreds of Very Shallow Earthquakes Detected in California’s Long Beach and Seal Beach
17 November 2022–Data collected by a large-N seismic array and distributed acoustic sensing (DAS) in Iceland offer one of the most detailed acoustic fingerprints of a meteoroid entering and disintegrating in the atmosphere. The dense record, described in Seismological Research Letters, allowed the researchers to distinguish acoustic phases that are… Continue Reading Dark Fiber Helps Pick Up Acoustic Signals of Iceland Meteoroid
30 August 2022–The recurrence interval for earthquakes along some California faults may be on average 16% longer than previously estimated, according to a new study in the journal Seismological Research Letters. The revised estimates take into account a variable called event likelihood, which quantifies how likely it is that a… Continue Reading New Analysis Suggests Longer Earthquake Intervals on Some California Faults
27 June 2022–Using a method that works backward from a set of observed earthquakes to test seismic models that fit those observations, researchers working in the Delaware Basin were able to determine whether earthquakes in the region since 2017 were caused by oil and gas operations. The new study published… Continue Reading “Hindcasting” Helps Identify Causes of Induced Earthquakes in Delaware Basin
16 March 2022–Seismic and acoustic data recorded 50 meters away from a research nuclear reactor could predict whether the reactor was in an on or off state with 98% accuracy, according to a new study published in Seismological Research Letters. By applying several machine learning models to the data, researchers… Continue Reading Nuclear Reactor Power Levels Can Be Monitored Using Seismic, Acoustic Data
