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

Important Update to rt2ms

Important update to rt2ms program for processing RT130 data

This is to inform you about an important software update needed for processing of Reftek RT130 data in PASSCAL experiments. We recently discovered an issue with running rt2ms on the second card installed in the RT130.  Sometimes insufficient header values are being written by the RT130 and then rt2ms passes over these packets potentially resulting in a gap on one or more channels (typically less than 1 hour on higher sample rate data, larger gaps on 1sps data).  The PASSCAL Software Group has patched rt2ms to handle the missing packet headers and write all of the data that are on the card.  We highly recommend that you download and install the updated rt2ms program if you are processing any RT130 data.

Bighorn Arch Seismic Experiment: Results

In 2010, a group of seismologists deployed several hundred sensors across Wyoming and Montana as part of EarthScope's Bighorn Project and the Bighorn Arch Seismic Experiment (BASE). IRIS/PASSCAL supplied instruments and expertise as part of this large effort, which included scientists from CIRES at University of Colorado Boulder(1), the Department of Geology at Colorado College(2), the Department of Geology and Geophysics at the University of Wyoming(3), and the Department of Geology and Geophysics at Texas A&M University(4). The Principal Investigators included Anne F. Sheehan(1), Megan L. Anderson(2), Eric A. Erslev(3), Kate C. Miller(4), and Christine S. Siddoway(2). William L. Yeck(1), the lead graduate student from UC Boulder, provided analysis and support included in this article. Additionally, numerous students contributed to the effort. The team's recent publication, "Structure of the Bighorn Mountain region, Wyoming, from teleseismic receiver function analysis: Implications for the kinematics of Laramide shortening," is available from AGU Publications (Full, PDF).

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PASSCAL pre-AGU Workshop

PASSCAL Workshop: Data Archiving and More!

Sunday, December 13, 2015
San Francisco - Zelos Hotel

Presentations are now online!  All are PDFs and the PH5 posters are a .gif and a .pdf

Session 1 - SEED Data Archiving

Session 2 - Instrument Responses (given by Mary Templeton of the IRIS DMC)

Session 3 - PH5 tools and future plans

PH5 poster from AGU 2013

The GeoGirls Program in the News

The GeoGirls program is getting some great publicity, thanks to the efforts of the USGS, The Mt. St. Helens Institute, and even comedienne Amy Poehler.

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Ensemble Cast Supports Socorro Magma Body Experiment

During February 2015, PASSCAL staff assisted Principal Investigators Sue Bilek, Rick Aster, Brandon Schmandt, and Lindsay Worthington with the installation of numerous single-channel nodes in conjunction with seven PASSCAL broadband stations (data) to image the Socorro Magma Body (SMB) beneath the Sevilleta National Wildlife Refuge in central New Mexico. 

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RT130 ALERT - Issue when using two 4GB CF cards

Jan. 5, 2015

PASSCAL recently received reports of RT130’s failing when using two RefTek 4G CF cards at moderately low temperatures during an Antarctic experiment. We have duplicated the failure in our lab and in our testing the failure was associated with a specific version of RefTek well board (RT526D). Although we have not had failures in our testing with earlier or later versions of the board, our sample set is small and we cannot rule out problems with these boards when using two 4G CF cards. We have communicated with RefTek about the issue and at this time they are in agreement with these findings.

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Conviction of Italian Seismologists Overturned in Appeal

Angus Mackinnon of phys.org reported on November 10th, 2014 that

"Seven Italian scientists who faced jail for failing to predict a deadly 2009 earthquake were cleared Monday of manslaughter convictions that had sparked international outrage.

The seven men were sentenced to six years in jail in October 2012 after a court in the medieval town of L'Aquila found them guilty of causing multiple deaths by having negligently downplayed the risk of the town being hit by a major earthquake just days before the killer tremor struck in April 2009."

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Aftershock Deployment in Wine Country

 

 On August 27, 3:22 am Napa, California experienced a M=6.0 earthquake,   causing significant damage to buildings in downtown and in the world-renowned vineyards of central Californa.  Dr. Rufus Catchings of the USGS' Menlo Park office led a deployment team consisting of USGS staff and volunteers, supported by George Slad of PASSCAL.

 

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Pre-AGU PASSCAL Users Workshop 2014

Late-stage graduate students! Postdocs! Researchers and faculty!

IRIS/PASSCAL Instrument Center would like to invite you to register for our PASSCAL Users Workshop to be held on Sunday December 14th, 2014 (the day before the beginning of the AGU Fall meeting). 

This year’s workshop will give an overview of the PASSCAL facility, the services we provide and how to access them.  We will have two special guest speakers, PIs who have successfully planned for an run international and large-scale PASSCAL projects.  This year's speakers are Anne Meltzer of Lehigh University (large-scale broadband deployments in Pakistan, Tibet, and Mongolia) and David Okaya of the University of Southern California (large active source projects in Taiwan, New Zealand and Japan).

But wait, there is more! The PASSCAL Program Manager, Kent Anderson, as well as the PASSCAL Director, Bruce Beaudoin, will be on hand for questions and discussion as well.  Ask questions and discuss ideas about current/future projects before AGU really starts and the talks, posters, dinners, and other meetings start clamoring for everybody's attention and time!

This workshop will be useful to anyone who has an upcoming PASSCAL supported experiment, or is planning to propose an experiment, and will be particularly useful to current graduate students and new investigators.

PASSCAL Intern Winds Up Summer With "Ultrasound" of Mt. St. Helens

Federica Lanza, a Ph.D. student at Michigan Technological University under Gregory P. Waite, spent the summer as the IRIS/PASSCAL intern. During that time, "Fede" deployed instruments with IRIS interns, presented her work at the 2014 IRIS workshop, and completed two research projects related to short period sensor responses and long period noise analysis using PSD PDFs. Fede wrapped up her summer with a couple of weeks in the field at Mt. St. Helens, supporting the iMUSH project, along with several other IRIS/PASSCAL scientists and staff. Some highlights of our intern's busy summer follow.

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