This Special Event web page is intended to provide direct links to and images of data and materials available from NSF SAGE programs and preliminary research results from the seismology community. We welcome any additional contributions containing original content that might be of interest to the research community. Please send them to the email address listed below.
NSF SAGE does not necessarily endorse the views or scientific validity of the posted items.
Mainshock:
- July 6, 2019 03:19:52 UTC, M7.1 Central California (USGS Executive summary page)
Foreshock:
- July 4, 2019 17:33:49 UTC, M6.4 Central California (USGS Executive summary page)
Email contributions to:
special-events@lists.ds.iris.edu
Note:
All scientific contributions addressed to the community will be forwarded to the special-events mailing list.
If you DO NOT want your email being forwarded, please address it to NSF SAGE or explicitly write
do not forward.
Quick Links
IRIS Earthquake Browser ¶
[IRIS Earthquake Browser] Click on image 
to browse a map of events that occurred in the same region.
Mainshock Figures ¶
[USGS Interactive Map] Mainshock, USGS ShakeMap
[Douglas Dreger, Berkeley Seismological Laboratory] Map showing the 
location of the event with the Caltech moment tensor solution, and the 8
SCSN strong motion stations used in the finite-source inversion. Click on
image for the full PDF report.
[IRIS Surface-Wave Radiation Patterns Data Product] Surface-Wave Radiation [GEOSCOPE Observatory] Mainshock, Automatic 
Patterns for the mainshock at individual selected Frequencies. Click on image
to visit the product page.
determination of source parameters using the SCARDEC method
[Zach Ross] Ridgecrest sequence as of 8:48 AM – 6 Jul 2019. Click on 
image for image source.
Foreshock Figures ¶
[USGS Interactive Map] Foreshock, USGS ShakeMap [GEOSCOPE Observatory] Foreshock, Automatic [IRIS Surface-Wave Radiation Patterns Data Product] Surface-Wave Radiation 
determination of source parameters using the SCARDEC method
Patterns for the foreshock at individual selected Frequencies. Click on image
to visit the product page.
Videos & Animations ¶
[John Taber, IRIS Education and Public Outreach ] An animation of the ongoing
earthquake sequence in Central California between 7/4-to 7/6 17:00 UTC,
using USGS earthquake locations. Click on image to play the animation.
Animation was made using the IRIS Interactive
Earthquake Browser.
Links ¶
- USGS Mainshock Executive summary page
- USGS Mainshock KML
- USGS Foreshock Executive summary page
- USGS Foreshock KML
- USGS, @USGS
- USGS Big Quakes, @USGSBigQuakes
- IRIS Earthquake Science, @IRIS_EPO
- Anthony Lomax, @ALomaxNet
- Jascha Polet, @CPPGeophysics
- Stephen Hicks, @seismo_steve
- Susan Hough, @SeismoSue
NSF SAGE Facility Event Page
The NSF SAGE Facility event page for this event contains links to additional tools and data.
Related Content
These other pages were tagged similarly:
- Gulf of Alaska [Special Event: 2018-01-23]
- North of Anchorage, Alaska [Special Event: 2018-11-30]
- Northern Peru [Special Event: 2019-05-26]
- Hawaii [Special Event: 2018-05-04]
- Generalized GMVs: post-TA ground motion visualizations [Newsletter Article: 2025-12-28 Vol. 22, Num. 2]
- GMV2 [Product]
- Are You Ready? Introducing Research Ready Data Sets (RRDS) [Newsletter Article: 2018-03-26 Vol. 20, Num. 1]
- 2017 North Korean nuclear test [Special Event: 2017-09-03]
- 2016 North Korean nuclear test [Special Event: 2016-01-05]
- South Island, New Zealand [Special Event: 2016-11-13]
