News and Updates
2024
Extent endpoint of the availability web service now also serves seismic phase data availability(1932 - present). 02/28/2024
Data Discovery Map now available. Use this map to discover the types of data the SCEDC has in its archives. Filters can be applied by sensor type, asset(data) type and time range. 02/13/2024
2023
SCSN Now Using Machine Learning Picks in Post Processing. 12/08/2023
Catalog Processing Status files available. 09/10/2023
Planned Maintenance Notice 02/14/2023
At 10:30am on February 14, 2023, we will be replacing one of our web and STP servers. We expect minimal impact for users as they will continue to reach the old server for a time as as DNS propagates.
We will also be shutting down our FTP service on port 21. However, you can continue to access the same files over HTTPS from https://service.scedc.caltech.edu/ftp/.
2022
New Ridgecrest DAS dataset available 09/12/2022
New California-Mexico Border Catalog available. 08/05/2022
New waveform relocated earthquake and focal mechanism catalogs available. 08/05/2022
Focal Mechanism Catalog for Southern California Derived with Deep Learning Algorithms (1981-2021) Available. 04/05/2022
W Phase Catalog (2000-2021) Available 09/10/2021
Employment Opportunities: Caltech GPS Postdoctural Positions 09/09/2021 How AWS contributes to an earthquake safety system for the US West Coast 07/14/2021 Community Stress Drop Validation Study using the 2019 Ridgecrest Earthquake Sequence. 04/21/2021 COMING Dec 14th - NEW WEBSITE LOOK! 11/25/2020
LA Basin Accelerometer Data for Ridgecrest Sequence Available. 08/19/2019 Cahuilla Swarm Catalog (2016-2019) Available. 07/01/2020 MAINTENANCE NOTICE - On June 10th, we will have a planned outage of our web services and catalog search forms starting from 9am PDT (16:00 UTC) to 10am PDT (17:00 UTC). This applies for both continuous and triggered waveform retrieval. The public dataset s3://scedc-pds is unaffected. There may be delays to the Recent Earthquake Map 06/09/2020 MAINTENANCE NOTICE - On May 19th, we will have a planned outage of our waveform retrieval services starting from 11am PDT (18:00 UTC) to 3pm PDT (22:00 UTC). This applies for both continuous and triggered waveform retrieval. The public dataset s3://scedc-pds is unaffected. Earthquake catalog and station metadata are also unaffected. 05/16/2020 The SCEDC FDSN Station web service is serving StationXML v1.1 starting April 28, 2020. The differences between the two versions are listed here 04/21/2020 Ridgecrest Portable Deployment Waveforms Available. 12/19/2019 The SCEDC Waveform Archive now in AWS Cloud. 09/06/2019 Query endpoint for FDSN Data Availability Web Service is now available. 07/30/2019 NEW Quake Template Matching (QTM) seismicity catalog now available. 04/18/2019 New version of clickable station map now available for BETA testing. 04/01/2019 New waveform relocated earthquake and focal mechanism catalogs available. 02/12/2019 Training and Validation Data Sets for Deep Learning available. (additional data set added) 01/30/2019 FDSN Data Availability Web Service is now in production. 11/27/2018 Training and Validation Data Sets for Deep Learning available. (additional data set added) 09/07/2018 Training and Validation Data Sets for Deep Learning available. 07/18/2018 ** NOTICE ** On July 11, 2018 the SCEDC FDSN dataselect web service will return HTTP 400 for requests from Swarm. Requests from the Swarm application have begun to impact the overall performance of our web services for all users and the services were not designed for the real-time monitoring goals of this application. To ensure the best service performance for all users, the SCEDC will not be servicing requests by Swarm applications. For real-time feeds to CI stations, we encourage Swarm users to use the IRIS SEEDLink service. 60 CI stations are sent to IRIS in real-time. 07/11/2018 New waveform relocated earthquake and focal mechanism catalogs available. 06/12/2018 Researcher derived location catalogs now available via FDSN Event webservices. 08/28/2017 Join the California earthquake drill ShakeOut on Oct 19, 2017 10:19am PDT. 08/28/2017 New focal mechanism catalogs for 2015-2016 now available. 01/04/2017 ** NOTICE ** On October 19, 2016 the SCEDC will be transitioning to its new archival system. We expect web services and STP to be offline from 10am-12pm PDT. Please report any issues to scedc@gps.caltech.edu if you see any issues accessing SCEDC archives. ** NOTICE ** On July 1, 2015, a bug was introduced into STP that caused triggered data to become leap-second noncompliant. Continuous data requests were not affected. The bugfix has been deployed on June 22, 2016. We recommend users re-download data if your data set contains events between July 1, 2015 and June 22, 2016 AND you made the download with the TRIG command between these dates. 06/23/2016 Join the California earthquake drill ShakeOut on Oct 20, 2016 10:20am PDT. 01/22/2016 New waveform relocated earthquake and focal mechanism catalogs available 01/05/2016 On January 12, 2015, the SCEDC website will be moving to a new address, https://scedc.caltech.edu. Our web services, PHP, and catalog search pages will move to the address https://service.scedc.caltech.edu. The old address, https://scedc.caltech.edu, will remain online and direct traffic to the new addresses at least until April 12, 2015. Join the California earthquake drill ShakeOut on Oct 15, 2015 10:15 am. 09/22/15 On September 22, 2015, the SCEDC earthquake catalogs will report event depths relative to the WGS84 reference ellipsoid. Older versions of the catalog with the model depth datum will be available on the SCEDC repository on GitHub. Other changes in processing that affect the earthquake catalogs are documented here. New waveform relocated earthquake catalog available. 09/05/2014 New focal mechanism catalog available. 09/05/2014 Join the California earthquake drill ShakeOut on Oct 16, 2014 10:16am. (09/05/2014) ** Notice - August 22, 2014 ** On July 7, 2014, a bug was introduced into STP that caused continuous data to become leap-second noncompliant. The bugfix has been deployed on this STP server on August 22, 2014. It is recommended that you re-download continuous data downloaded between July 7, 2014, and August 22, 2014. The SCEDC now has a new version of web STP in beta testing. Web STP allows user to retrieve continuous or triggered waveform data, as well as download phase data in STP format for events in the SCEDC earthquake catalog. Users can either use the form or call the service programmatically via curl or wget. Join the California earthquake drill ShakeOut on Oct 17, 2013 10:17 am. 10/14/2013 Version 1.6.2 of the STP command-line client is available as of March 6, 2012. This version corrects a bug that caused a segmentation fault on 64-bit machines when the main STP server was overloaded. GPS data, waveform scans, and STP will be offline for about 10 minutes starting at 3pm today. 04/04/2012 SCEDC is now archiving real time GPS displacement waveforms. 07/02/2012 We apologize for the SCEDC website outage. We are working on getting the site back online. Please let us know if you notice anything that is not working. 07/17/2012 Join the California earthquake drill ShakeOut on Oct 18, 2012 10:18 am. 10/18/2012 Strong motion waveforms from California Geological Survey now available in the archive. 12/06/2012 American Recovery and Reinvestment Act (ARRA) improves the data quality of the SCEDC archive. As of September 9, 2011, the SCEDC website has been upgraded to a new design. New waveform relocated earthquake catalog available. New focal mechanism catalog available. Starting Jan 1, 2010, SCEDC archives high sample strong motion channels continuously. Data sets for M7.2 Sierra El Mayor Cucapah Earthquake. GPS displacement waveforms from California Real Time Network for M7.2 Sierra El Mayor Cucapah Earthquake.
The SCSN Earthquake Catalog turns 90! - By January 1932, the seismic instruments installed in southern California
in the late 1920's were considered reliable enough to begin recording a consistent earthquake catalog and the
network has been going strong since. From the formation of the
first instrumental earthquake magnitude scale by Richter, to the
seismic hazard assessment and
machine learning studies of today, the catalog is a valuable resource
for advances in seismology. The catalog is unique because it has a continuous history of earthquake monitoring,
with an average magnitude completeness achieving ML 3.25 since 1932 and ML 1.8 since 1981.
(Hutton et al, 2010) You can search and retrieve data from the earthquake catalog under the "EQ Catalogs" dropdown
on this site's menu bar. 1/5/2022
2021
2021 AWS OPEN DATA SET DOWNLOADS EXCEED 350TB - Users have taken advantage of SCEDC's participation in the Amazon Open Data Set program to access its continuous waveform archive. The enhanced scability of the cloud hosted dataset significantly decreases the data retrieval time for users. 12/10/2021
2020
We will be updating the look of our website and we hope users will find the site easier to use.
Some changes to expect:
2019
2018
2017
2016
Improved polygon search now available on SCEDC catalog search pages. 12/13/2016
2015
2014
2013
2012
2011
2010
