Seismic Monitoring Articles

  • 3D Visualization of Seismic Activity Associated with the Nazca and South American Plate Subduction Zone (Along Southwestern Chile) Using RockWorks

    Abstract The visualization of earthquake data in conjunction with surface imagery is an ideal application for three dimensional computer software. Downloading earthquake epicenter data, satellite imagery, and surface topography from the Internet is a relatively simple process. To illustrate the downloading process and the visualization techniques, this study provides a step-by-step analysis ...


    By RockWare, Inc.

  • Three dimensional digital analysis of 2,500 square kilometers of gravity and magnetic survey data, Bellefontaine Outlier area, Ohio

    Introduction The Bellefontaine Outlier area is a highland region of flat lying Devonian age rocks capped by varying amounts of glacial till. The area is entirely surrounded by a topographically flat and heavily glaciated area of flat lying older Silurian age rocks. The Outlier highlands also contains the highest point in Ohio, Campbell Hill, (1,549ft) which has an elevation 40 feet above it ...


    By RockWare, Inc.

  • Resilience-based water main rehabilitation planning in a multi-hazard context

    Due to aging beyond the intended design life, many water mains in the USA are currently deteriorated resulting in an increasing number of failures which challenge water utilities with diminished supply reliabilities, loss of treated water, and numerous other societal issues. Water pipeline systems serving regions that are naturally vulnerable to external hazards, such as earthquakes, pose ...


    By IWA Publishing

  • Fire Station No. 5 Renovations for Seismic Retrofit - Case Study

    Global was subcontracted by Mortenson/Manson, a JV, to perform work on the piles underneath Seattle Fire Station No. 5 along the Elliot Bay Seawall as part of a major seismic retrofit. The scope of work included installing the Denso Sea Shield Series 100 Pile Protection System on 18 steel piles, with the subsequent fabrication and installation of 14 collar bracing assemblies. Containment was ...

  • Monitoring Gas Emissions from Volcanoes to Predict Volcanic Activity

    To understand and predict the behaviour of volcanoes an increasing number of scientists are combining geological monitoring and geochemical models. By measuring and monitoring the prevalence of gases like CO2, scientists hope to be able to better predict the likelihood of volcanic eruptions. In 2010 Iceland’s Eyjafjallajökull volcano erupted, releasing 250 million ...


    By Edinburgh Sensors Ltd

  • Use and application of Piezocone Penetration testing in Presumpscot Formation

    Abstract: This paper examines the advantages and limitations of CPTu and SCPTu as an exploration method for geotechnical engineering of Presumpscot Formation. Discussion will include typical results of CPTu and SCPTu data for Presumpscot Formation, application and use for settlement prediction, bearing capacity analysis, slope stability evaluation, and seismic design considerations. Intent is to ...

  • Seismic refraction for weather zone assessment in vibroseismic processing

    Refraction seismic measurements for the determination of the seismic velocities in the shallow subsurface have been performed close to Valence (F) for our partner Partner Gallego Technic Geophysics. 44 profiles with a length of 240m have been acquired in August 2016. Seismic velocities of the shallow geological layers and the bedrock could be determined to a depth of up to 25m. Results from ...


    By Geo2X

  • Isatis manages several million data sets

    Through the years, Geovariances has always endeavored to improve Isatis performances to answer their client constraints related to the always increasing size of their data sets. Most of the algorithms in Isatis are thus optimized and parallelized to run on multi-threaded computers and decrease computation time in a significant manner. ...


    By Geovariances

  • Expect The Unexpected During Inline Inspection Runs

    Over the past decade, several high profile oil and gas pipeline failures have shown that the consequences of a rupture can be extremely severe for both the environment and human life, and can result in billions of dollars in remediation costs. Because of all these negative consequences, governments have made it mandatory to conduct routine inspections on these assets to prevent catastrophic ...

  • Seismoelectric survey project for oil and gas exploration in Mangistau Oilfield, Kazakhstan - Case Study

    The seismoelectric survey was conducted by Seismo Electronics LLC in November, 2015. After our survey, seismoelectric data from measurement points nearby proposed location do not show promising hydrocarbon reservoir and their signal anomalies are even weaker compare to anomalies from two existed wells. We didn't recommend drilling in this proposed location, but our client is interested in a ...


    By Seismo Electronic LLC.

  • Seismoelectric survey project for oil, gas and water exploration in Shengli Oilfield, China - Case Study

    Seismo Electronics LLC. has recently finished a project for its client-Sinopec Shengli Oilfield Company. This project, which has over 8000 acre survey area, has been in the works since January, 2015. Our geophysicists used our instrument to detect reservoir 2000-4000m below ground surface. We provided three recommended drilling locations to our client, which all match the client’s existed ...


    By Seismo Electronic LLC.

  • Haiti Groundwater Survey Project - Case Study

    We already have done over 230 survey sites with DC-4500 Ground-flow Locator in Haiti with 95% success rate since 2011. More than 230 water wells were drilled and most of seismoelectric surveys were performed in ...


    By Seismo Electronic LLC.

  • Beaver Dam Groundwater Survey Project, Utah - Case Study

    In May 2014, we conducted seismoelectric survey for Willowstick Technologies LLC in Beaver Dam area, Utah, USA. According to our client’s requirement, we designed 3 seismoelectric survey lines, with total 50 measurement stations. After data processing and interpretation, we located 3 layers of aquifers. The red layers are the top and bottom of the first aquifer; the green ones for the ...


    By Seismo Electronic LLC.

  • Seismoelectric survey project for oil, gas and water exploration in Shengli Oilfield, China - Case Study

    In January 2015, Seismo Electronics LLC. completed the seismoelectric survey project for its client-Sinopec Shengli Oilfield Company. Our geophysicists used our instrument to detect reservoir 2000-4000m below ground surface. We provided three recommended drilling locations to our client, which all match the client’s existed reservoir analysis results. Our seismoelectric survey successfully ...


    By Seismo Electronic LLC.

  • Fracture Area Groundwater Survey, Llano, Texas - Case Study

    In April 2011, our client had four unsuccessful drilling wells before our company participated in this project at Blackjack Ranch, Llano. After geological analysis, we conducted the seismoelectric survey along the fracture direction and provided our client a well location with 5 gallon/hour water production which proved by later ...


    By Seismo Electronic LLC.

  • Thrall Oilfield Survey Project, Texas - Case Study

    In January 2012, we performed seismoelectric survey at 3 sites in Thrail Oilfield. The seismoelectric signals in #3 site indicated that there is no oil reservoir. In April, the drilling company drilled at this point and only got a dry-hole. However, we detected the oil reservoir at #1 and #2 sites based on seismoelectric signals. Then in October, the report from the same drilling company show ...


    By Seismo Electronic LLC.

  • Barnett Shale Fault Detection

    OBJECTIVE OF THE PETRO-SONDE SURVEY: To delineate faults within Barnett Shale Barnett Shale deposits within the Ft. Worth Basin produce primarily gas from fracture porosity. Strata in the Johnson county area dip and thicken to the northeast in response to the Central Texas uplift bordering the Ft. Worth Basin to the southwest. Faulting is common in the area and generally trends NW-SE. To ...


    By Geophysics International

  • Passive Seismic

    Passive seismic exploration methodology, in particular the IPSS/IPDS (Infrasonic Passive Seismic Spectroscopy/ Infrasonic Passive Differential Spectroscopy ) and PST/MST (Passive Seismic Tomography/Micro Seismic Tomography) technique uses spectroscopic and time analysis of the seismic background noise acquired passively using high sensitivity VBB (Very Broad Band) 3D seismometers.  Passive ...

  • geological prospecting & seismic device manufacturing industry in China

    China geological prospecting and seismic device manufacturing industry, 2015 is valuable for anyone who wants to invest in the geological prospecting and seismic device manufacturing industry, to get Chinese investments; to import into China or export from China, to build factories and take advantage of lower costs in China, to partner with one of the key Chinese corporations, to get market ...


  • Coping with earthquakes in Romania: advanced concepts and learning tools using a training platform and facility

    Earthquake preparedness of citizens is recognised as an efficient means for better coping with shaking impact and making easier the emergency management. Romania represents a specific case where the unique Vrancea intermediate seismic source, at the curvature of Carpathian Mountains, causes intense shaking and losses at several decades interval, but, after that, many generations do not have an ...


    By Inderscience Publishers

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