Exciting news! We're transitioning to the Statewide California Earthquake Center. Our new website is under construction, but we'll continue using this website for SCEC business in the meantime. We're also archiving the Southern Center site to preserve its rich history. A new and improved platform is coming soon!

Poster #192, Computational Science (CS)

Cloud Computing and Big Data – 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, Egill Hauksson, & Robert W. Clayton
Poster Image: 

Poster Presentation

2020 SCEC Annual Meeting, Poster #192, SCEC Contribution #10464 VIEW PDF
Southern California Earthquake Data Now in the Amazon Cloud (s3://scedc-pds us-west-2 region.)
- We have uploaded the following parts of the SCEDC archive into the AWS public dataset:
- 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, 2019 in progress
- 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.
- The poster will also present a cost analysis for a variety of analysis activities to give
users an idea of costs incurred working with a cloud archive.

New Data Access Tools and Web Services
- PySTP is a Python module for connecting to STP (Seismogram Transfer Program) servers and
downloading event metadata, phase picks, and waveforms triggered by seismic events. PySTP
requires ObsPy. Tutorials can be found at https://github.com/SCEDC/pystp
- FDSN compliant data availability web services are now available at
Users can use the availability web services to determine the time ranges for which triggered
and continuous waveform time series are available for download. This service can be used with
the IRIS Rover service.

New Researcher Provided Datasets
- 2019 Ridgecrest Sequence Datasets are available at
https://scedc.caltech.edu/research-tools/ridgecrest-info.html Includes
- USGS Aftershock deployments (network codes GS and ZY) (Hauksson et. al. 2019)
- Quake Template Matching Catalog (Ross et. al 2019)
- CI, CE and CSN accelerometer data for the greater LA Basin. (Fillipos 2020, in revision)
- Cahuilla Swarm Catalog 2016-2019 (Ross 2020)