News and Updates

2021

Community Stress Drop Validation Study using the 2019 Ridgecrest Earthquake Sequence. 04/21/2021

2020

COMING Dec 14th - NEW WEBSITE LOOK! 11/25/2020
We will be updating the look of our website and we hope users will find the site easier to use.
Some changes to expect:

  • Significant Earthquakes and Faults is now under "Earthquake Info"
  • Download Data has been renamed to "Access Data"
  • Stations is now under "Access Data"
  • The FAQ section now has its own section under the menu bar.

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

2019

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 available04/18/2019

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

2018

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

2017

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

2016

Improved polygon search now available on SCEDC catalog search pages. 12/13/2016

** 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

SCSN has started calculating an additional magnitude type, a revised local Magnitude (Mlr), for events larger than 3.5.  01/12/2016

2015

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.

2014

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.

2013

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

2012

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 archive12/06/2012

2011

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.

2010

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.