Earthquake Engineering Research Institute
Learning From Earthquakes

South Napa, California

Data Map

The Data Map displays earthquake damage and impact observations from EERI field teams and other contributors using EERI’s Photo Upload Tool. Whenever possible, the data map overlays other important layers, including USGS ShakeMaps, PGV/PGA, ground motion stations, and other location data. The Data Map layers are interactive and can be filtered for specific details.

Reconnaissance Photo Gallery

The Reconnaissance Photo Gallery is a repository of photos taken by EERI field teams and other contributors. Many photos are geolocated and allow field teams, researchers, and those involved in recovery effort to identify specific damage locations by site and proximity to other features using the Data Map. The Photo Gallery can be filtered by user and searched for specific records, or used to upload photos in the field.

Featured Resources

July 3, 2018
Earthquake information from USGS including ShakeMap and PAGER
July 2, 2018
By I. Almufti, C. Kroll, M. Mieler, H. Tremayne, A. Wein, Y. Xiao. January 2017. 16th World Conference...

Resources

DateCategoryTitleDescription
07-03-2018
Seismology
USGS Event PageEarthquake information from USGS including ShakeMap and PAGER
07-02-2018
BuildingsReportStructural Engineering
Performance of Buildings and Nonstructural ComponentsFebruary 2015. Applied Technology Council, FEMA. The magnitude-6 South Napa earthquake occurred on August 24, 2014 with an epicenter located 8 km (5 miles) south southwest of the City of Napa. The cities of Napa and Vallejo, as well as the surrounding areas, were significantly impacted by the event. The...
07-02-2018
BusinessEconomic impactsEconomy
Measuring the Resilience of Businesses Following the 2014 South Napa Earthquake in CaliforniaBy I. Almufti, C. Kroll, M. Mieler, H. Tremayne, A. Wein, Y. Xiao. January 2017. 16th World Conference on Earthquake Engineering. Following the 2014 South Napa Earthquake in California, the Earthquake Engineering Research Institute convened a small team of researchers to develop an approach for studying the...
02-02-2018
Ground motionsSeismologyStructural Engineering
USGS Earthquake Science Center Seminars: Lessons from the South Napa EarthquakeVisit the USGS seminar page to view a recording of the “Lessons from the South Napa Earthquake Seminar” held by the USGS on September 4, 2014.
02-01-2018
GeologyGeotechnical EngineeringReportStructural Engineering
EERI Special Earthquake Report: M 6.0 South Napa Earthquake of August 24, 2014Leaded by Marko Schotanus. October 2014, Earthquake Engineering Research Institute. This 28-page summary report describes the multidisciplinary findings of members of EERI and their colleagues who conducted reconnaissance through the California Earthquake Clearinghouse. The main chapters of the report ...
02-01-2018
BuildingsGround motionsLifelines and Utilities (i.e. communications, water, power, sanitation)
EERI Reconnaissance Briefing – On the August 24, 2014 – South Napa Earthquake (Monday, Septermber 15, 2014)On Monday, September 15, 2014 the Earthquake Engineering Research Institute (EERI) and the Pacific Earthquake Engineering Research Center (PEER) cohosted a reconnaissance briefing of preliminary observations from the August 24, 2014 South Napa Earthquake. The recording of the briefing is shown below along wi...
02-01-2018
Geotechnical EngineeringLink to external resourceReport
Geotechnical Engineering Reconnaissance of the August 24, 2014 M6 South Napa Earthquake (GEER Report)Edited by Jonathan Bray, Julien Cohen-Waeber, Tim Dawson, Tadahiro Kishida, and Nicholas Sitar. September 15, 2014. Geotechnical Extreme Events Reconnaissance (GEER) Association. GEER Association Report No. GEER-037, in collaboration with the California Geological Survey, Pacific Earthquake Engineering...
05-01-2019
Business
Business Resilience Survey (Napa, California & Cushing, Oklahoma),By Yu Xiao and Mike Mieler. Presentation on the Business Resilience Survey pilot studies in Napa, California and Cushing, Oklahoma.
07-02-2018
DataGround motionsLink to external resource
CESMD Strong Motion Data for 2014 South Napa EarthquakeCenter for Engineering Strong Motion Data (CESMD) strong motion data for 2014 South Napa Earthquake.
07-02-2018
Ground motions
Unusually Strong Ground Motions from M6 South Napa EarthquakeBy Dr. Praveen K. Malhotra. September 6, 2014. StrongMotions Inc.

Photo Gallery

Photos in this gallery have been contributed by EERI members and California Earthquake Clearinghouse participants. Photos from this gallery can be used for non-commercial purposes with proper attribution.

Photo Information
Attachment ID
Caption/Description
Latitude
Longitude
Date Taken
Data Copyright Holder
Photographer
Original Filename
Filename
File Type
Additional Information
Record ID
Observer Name
Observer Email
Experience Level of Observer
Observation Category
Description
Date and Time of Observation
Type of Bridge
Affiliation
Observer Area of Expertise
Professional Licenses Held By Observer
Timezone
Site Owner
Site Latitude
Site Longitude
Bridge ID
Route
Bridge Foundation
Length (ft)
Width (ft)
Year Built
Retrofit
Year of Retrofit
Causes of Damage (Bridges)
Bridge Functional
Estimated Repair Time
Additional Notes (Bridges)
Level of Lead Organization
Type of Organization
Incident Command System Functional Area
Additional notes (Emergency Management/Response)

Data Map

A preview of the data map is shown below. For more functionality (toggle layers, adjust transparency, and view data tables), view the map on ArcGIS Online here.

Materials on this site and on the data maps may be used with proper atrribution (Name of individual or organizational contributor) for non-commercial uses. Questions, contact eeri@eeri.org

How to Contribute

EERI members and other earthquake risk reduction professionals can contribute to reconnaissance efforts for this earthquake in the following ways:
1. Share your reconnaissance plans

If you will be participating as a part of a reconnaissance mission, recovery mission, or traveling to the impacted area for any other purpose, please share information about your plans through the Contact Form.  EERI can help link you to others in the field, support you in efforts to share photos or observations, and connect you with the EERI team (if one is mobilized).

2. Check into the local clearinghouse

If you plan to conduct reconnaissance, please make sure to be in communication with Recep “Ray” Cakir, who is leading the Physical Clearinghouse in Ankara. The information collected through reconnaissance can provide valuable situational awareness for those responding. The physical clearinghouse will close on May 15, 2023 and, at that time, local clearinghouse operations will continue virtually. Ray will continue to serve as the Clearinghouse contact and can be reached at:

3. Contribute Photos and Notes

Contribute post-earthquake field observations and photos. Once reconnaissance teams and others begin to share their photos and observations, they will also be shown on the virtual clearinghouse  Data Map and Photo Gallery pages.  All submissions will help inform both reconnaissance and recovery efforts.  A video tutorial on how to upload photos is available here.

For login information and help, please email maggie@eeri.org.

4. Submit an Paper to the Earthquake Spectra Special Collection

Earthquake Spectra invites earthquake researchers to contribute papers to a special collection titled, “Impact of the February 6, 2023 M7.8 and M7.6 Earthquakes in Turkey on the Built Environment, and Implications on Seismic Hazard.” More Information about how to submit a paper is available here: https://www.eeri.org/about-eeri/news/16199-earthquake-spectra-announces-special-collection-of-past-papers-on-turkey-syria-and-call-for-new-papers-on-the-february-2023-earthquake-sequence.

5. Review Ethical Reconnaissance Training Materials

As you consider reconnaissance, you are encouraged to review training materials for ethical reconnaissance from CONVERGE, available here: https://converge.colorado.edu/resources/

Other Ways to Contribute

Earthquake investigators are encouraged to contact EERI staff at eqclearinghouse@eeri.org if they have suggestions about how they can contribute to this clearinghouse effort.

EERI members and other earthquake risk reduction professionals can contribute to reconnaissance efforts for this earthquake in the following ways:

1. Contribute Photos and Notes

There are several ways that you can contribute to our data collection effort.  (A) Contribute post-earthquake field observations and photos or (B) contribute relevant pre-event images of the impacted area to provide baseline data for locations that field teams should visit to observe impacts. Once reconnaissance teams and others begin to share their photos and observations, they will also be shown on the virtual clearinghouse  Data Map and Photo Gallery pages.  All submissions will help inform both reconnaissance and recovery efforts.

Here is a video on how to use our batch uploader tool here.

For login information and help, please email eqclearinghouse@eeri.org.

Earthquake investigators are encouraged to contact EERI Clearinghouse staff at eqclearinghouse@eeri.org if they have suggestions about how they can contribute to this clearinghouse effort.

About

What is A Virtual Clearinghouse?

Virtual Clearinghouses are part of EERI’s Learning for Earthquakes (LFE) program. Beginning in 2009, EERI began to host a series of virtual earthquake clearinghouses after major earthquakes where information coming from the affected area could be quickly shared with members and others. These virtual clearinghouses are websites that contain early information provided by investigators from a variety of disciplines, including members of EERI reconnaissance teams. The virtual clearinghouses primarily capture ephemeral data about each event, but may also be updated with recovery and rebuilding information over time. For a complete list of EERI virtual clearinghouse sites and more information about the Learning From Earthquakes program, visit http://www.learningfromearthquakes.org.

How do I use this site?

EERI members and other investigators are encouraged to use this clearinghouse website to share brief observations and photos from the field as well as link to other resources or websites where more detailed information can be found. Please help contribute to our effort.

The Resources page displays all the resources collected through various sources (i.e. field reconnaissance posts, reconnaissance reports, links to previously collected data sources, housing reports for the affected area, etc.) in a searchable summary table. These resources are organized by categories. This page provides users with several resources including reconnaissance reports. It also contains links to other sites for more information.

The Data Map displays observations (primarily captioned photos but occasionally other data) from EERI field teams or other contributors showing earthquake damage and impacts. Many of these photos are geolocated to allow field teams, researchers and those involved in the recovery effort to identify specific damage locations.

The Photo Gallery is a database of these photos that can be searched for specific information. Data Maps also overlay many data layers from other organizations including the USGS shake maps and ground motion stations when possible.

The How to Contribute page identifies ways that EERI members and other earthquake risk reduction experts can contribute to the reconnaissance effort and virtual clearinghouse site.

If you are interested in a particular topic, use the search bar at the top of the page to find information on specific subjects, navigate posts, and uncover related media articles. Additionally, use the search bar to explore the Photo Gallery to see what has been posted thus far.

How does EERI respond to earthquakes?
What does a reconnaissance team do?

EERI responds to earthquakes as a part of its Learning from Earthquakes (LFE) program. EERI often sends a reconnaissance team of earthquake risk mitigation experts to investigate earthquake impacts depending on the earthquake magnitude, location, extent of impacts on the built environment, funding constraints, and many other factors. The reconnaissance team makes a rapid, general damage survey of the affected area, documents initial important observations from the particular earthquake, and assesses the need for follow-up areas of research. Observations and findings from these teams support emergency response and recovery activities in the short term and improve the understanding of natural hazards and how to mitigate their impacts in the long term.

Who is EERI?

The Earthquake Engineering Research Institute (EERI) is a nonprofit multi-disciplinary technical society of engineers, practicing professionals, and researchers dedicated to reducing earthquake risk. For more information visit www.eeri.org.