Group , Poster #200, Seismology

Using the Southern California Earthquake Data Center (SCEDC) and the Southern California Seismic Network (SCSN) Products and Services for Earthquake Research

Ellen Yu, Prabha Acharya, Aparna Bhaskaran, Shang-Lin Chen, Jennifer R. Andrews, Valerie Thomas, Zachary E. Ross, Allen L. Husker, Egill Hauksson, & Robert W. Clayton
Poster Image: 

Poster Presentation

2021 SCEC Annual Meeting, Poster #200, SCEC Contribution #11353 VIEW PDF
The Southern California Earthquake Data Center (SCEDC) is the archive of the Southern California Seismic Network and makes all data recorded by the network available to researchers and the public. The poster will present recent developments of interest to SCEC scientists.

Cloud Computing and Big Data – Southern California Earthquake Data in the Amazon Cloud (s3://scedc-pds us-west-2 region.)
- The poster will present new demos using AWS services working with the cloud archive. We will highlight using s3fs which allows you to mount the dataset as a filesystem on your local workstation and additional examples using AWS Lambda and Jupyter notebooks.

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The AWS dataset has the following datatypes:
-- Continuous waveforms:100 sps, 40 sps, 20 sps and 1 sps continuous waveforms 1999-present in channel-day miniSEED files
-- Triggered waveforms 1977-2018 in miniSEED
-- Earthquake catalogs and phase arrivals (1932-present) in ascii files
-- Scripts to retrieve data can be found at https://github.com/SCEDC/cloud. An Amazon Machine Image is available to allow users to quickly create a working environment to use these tools.
-- Index files have been provided to allow more fine-grained searches.

New Data Access Tools and Web Services
- Enhanced access to SCSN Moment tensor solutions – Based on user feedback, the SCEDC has improved reports via the moment tensor catalog search page. https://service.scedc.caltech.edu/eq-catalogs/CMTsearch.php. Users can also request solutions via the event web service: https://service.scedc.caltech.edu/fdsnws/event/1/

New Researcher Provided Datasets
- SCEC Community Fault Model Association Catalog
-- The SCEDC hosts a catalog of events and probabilities of association with faults from the SCEC Community Fault Model described in SCEC article https://www.scec.org/article/619

- Participate in the Community Stress Drop Validation Exercise!
-- The SCEDC is hosting instructions and datasets for the Community Stress Drop Validation Exercise. https://scedc.caltech.edu/data/stressdrop-ridgecrest.html

- W Phase Catalog
-- The SCEDC is hosting a catalog of W-phase moment tensor solutions for SCSN events greater than M5.

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