SOURCE: Stellar Solutions, Inc

December 08, 2014 17:56 ET

Earthquake Precursor Research Yields Positive Results

Earthquake Precursor Research Collaboration Between Quakefinder, USGS and Stanford University Yields Positive Results

PALO ALTO, CA--(Marketwired - December 08, 2014) -  Ultra-low frequency anomalies in the magnetic and electric fields have been reported prior to several earthquakes. Because most prominent anomalies have thus far only been observed on individual stations, some scientists have argued that some of these anomalies have an instrumental cause, rather than being earthquake precursors.

Two independent ultra-low frequency electro-magnetic networks are presently operating in the greater San Francisco Bay Area; one managed by the U.S. Geological Survey (USGS) and Stanford University and the other by QuakeFinder. To confirm that these anomalies are not instrumental, the two teams acquired data on two independent systems at the site of USGS-Stanford station located at the Jasper Ridge Biological Preserve, CA, from March 31-May 13, 2014. The two systems were set up~50m from each other and away from potential sources of noise.

The results of this experiment reveal that the two systems have very similar response functions and comparable noise and drift characteristics. Both complex "noise" and single discrete pulses were recorded with essentially identical characteristics by the two systems.

QuakeFinder founder Tom Bleier summed it up: "The goal of the project was to confirm that our different sensors are in fact seeing the same signals. With that now established, we can feel comfortable leveraging each other's data." The project is a win for all science collaborators using data from the QuakeFinder network, the USGS-Stanford network, or both.

You can find out more about this project and QuakeFinder at the upcoming AGU Fall Meeting in San Francisco, CA on Wednesday, December 17 from 8:00 am - 12:20 pm in the Moscone South Hall:

1) Session NH31B-3863, Progress in Evaluating Potential EM Earthquake Precursors: Comparison of Independent Ultra Low-Frequency Electro-Magnetic (ULFEM) Systems.

2) Session NH31B-3861, Recent Experiences Operating a Large, International Network of Electromagnetic Earthquake Monitors

QuakeFinder's mission is to save lives by forecasting earthquakes. QuakeFinder is actively researching short-term earthquake forecasting and is expanding its sensor network to gather critical supporting data. QuakeFinder has identified electromagnetic indicators in the days preceding major earthquakes in California and Peru. QuakeFinder is in the process of making its 10+ years of raw ULF magnetometer data more readily available to collaborating researchers.

About Stellar Solutions and QuakeFinder

Stellar Solutions is an engineering services company providing end-to-end technical expertise and problem-solving skills to significant national and international aerospace programs, including defense-related intelligence projects, international telecommunications satellites, commercial imagery satellites and NASA's planetary and earth science missions. QuakeFinder is a Humanitarian Research and Development effort sponsored by Stellar Solutions. More information is available at or

Contact Information

  • Contact:
    Tom Bleier
    250 Cambridge Ave., Suite 204
    Palo Alto, CA 94306
    Phone 650-473-9870