Here are some of the articles that have been recently posted to the PASSCAL website:

Sercel L-22 Short Period Sensor

Salient Features: This 3-channel sensor has a frequency of 2.0Hz, damping of 0.707 critical and sensitivity of 88V/m/s. Best used for (but not limited to) measuring local earthquakes, teleseisms, and some active source. Types of Projects include: determination of site response, determination of crustal structure, volcanic studies, aftershock studies, and glacial studies. Manufacturer Documents:

Link to Sercel seismometer page

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RefTek RT 130 Datalogger

The RT130 is a 3 or 6 channel high resolution datalogger. It is low power and highly configurable for a wide range of applications and sensors. It is housed in a plastic clamshell-style enclosure which is nearly waterproof and has internal data storage in the form of two compact flash cards. The RT130 can simultaneously record to the CF cards and transmit data in near-realtime using either ethernet or serial based telemetry. It has built-in sensor controls, scheduled mass recentering, and calibration functions. The RT130 is programmed with a PalmOS program called PFC-130 via the serial port.

Features:

Programming RT130's

The RT130 can be configured using any PalmOS device that has a serial interface and the program PFC-130, but the EPIC exclusively uses and provides Sony Cliés.

 

The following is an example outline of an RT130 configuration using the PFC-130 program. The outline is intended as a quick reference guide only and is not a substitute for training or reading the official manufacturer's manual. For detailed information on programming the RT130 using PFC-130, consult the manufacturer's RT130 information page and brochure.

PFC-130 Quick Reference Guide to Programming

Note: Items marked with * are information that will be written to the log file, but will not affect the operation of the RT130.

Sercel L-28-3D High Frequency Sensor

  Salient Features:  This 3-channel sensor has a frequency of 4.5Hz, is critically damped at .707 and has a sensitivity of 30.4 V/m/s.  Used for (but not limited to) active source (land and off-shore excitations), glacial movements, local earthquake and aftershock studies. Manufacturer Documents  http://www.sercel.com/products/Lists/ProductSpecification/Geophones_brochure_Sercel_EN.pdf

Download the Brochure to obtain information about the L-28 geophones.

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Getting It Perfect at OIINK

Gary Pavlis and Terry Stigall of Indiana University are proud of their geophysics students. The students were helping them to deploy some new direct-burial stations with Trillium broadband sensors for the OIINK project (a.k.a. SDYNAC, "Structure and Dynamics of the North American Craton"), and Terry directed them to get them perfectly level and lined up to north accurately. The students outdid themselves, and helped to make this a superb installation.

These students are from Gary Pavlis' Applied Geophysics class. They spent a weekend installing stations for the OIINK project.

Clockwise from upper right: Tyler Merrell, Steven Downey, Crystal Wespestad, and Brenden Fenerty.

Photographs courtesy Terry Stigall.

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NSF/EarthScope/EPIC Supports Chile RAMP

The National Science Foundation, using its Rapid Response Research (RAPID) funding mechanism, is supporting a project to collect an open community dataset from a portable seismograph deployment in an aftershock study following the magnitude 8.8 earthquake that occurred off the coast of Chile on February 27, 2010. The EarthScope Consortium, on behalf of its Member Institutions, will work with scientists from US universities and the University of Chile to deploy 60 broadband seismic instruments to record aftershocks for approximately six months. This community-wide coordinated approach will provide the best quality dataset that can be utilized immediately by a wide range of researchers from around the world.

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EPIC Student Employees

Just who are those energetic students padding the halls of EarthScope/EPIC? Here are our student interns and emergency hires.

 

 

 

Mia Cordova

Warehouse Lab Tech

 

 

 

Tyler Davis

Warehouse Lab Tech

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SEIS-UK joins EarthScope/EPIC on Support Effort for Antarctic Projects

 

 

SEIS-UK Director Dr. Alex Brisbourne accompanies the staff of the EPIC  to gain experience working in polar environments while supporting the POLENET and Whillans Ice Sheet projects for a month and a half during this year's field season.