Lavinia WelchFinal Project Presentation

Elluminate SessionDecember 6, 2009

California

Earthquake

Mapping

Resources

Lavinia Welch San José State University Library 220 Professor Susan Aber

Overview• This presentation aims to locate and broadcast resources that

can be useful for earthquake preparedness

• Most of the resources are map or map related

• The coverage area of most of the resources is southern California

• Historical significance of earthquakes in this area will be addressed

• Libraries that serve as exceptional mapping resources will be identified

• Educational materials will also be showcased

Introduction

• There's a 100 percent chance of an earthquake today! …somewhere on Earth -- an earthquake will occur. (USGS, para.1).

• California has a history of earthquake events that at times have been very severe – for example, 1906 San Francisco Quake

• Preparedness goes a long way in ensuring the safety of your friends and family

• Mapping resources can be invaluable when teaching and preparing for this natural hazard

USGS

Maps-California• Map resources for California can be found in many different places

– Libraries, websites and government agencies

• One great source is Humboldt University http://library.humboldt.edu/~rls/geospatial/calmaps.htm– Within Humboldt's California index

they have a page specifically for natural

hazards including earthquakes

http://library.humboldt.edu/~rls/

geospatial/calmaps.htm#hazard

• FEMA offers a seismic rehabilitation cost

estimator at http://www.fema.gov/srce/index.jsp

Major Faults of California

Faults run all along the state of California making it a place especially prone to earthquakes. Many different maps display these faults for scientists, natural disaster preparedness teams and people interesting in knowing if their home are situated near a fault. It is important to locate how close you live to a fault so that proper steps can be taken to prepare in the event of an earthquake.

Historically Significant Events

• One of the most significant earthquake events to hit California was the San Francisco earthquake of 1906 – and a great fire burned much of the city with at least 700 deaths– the quake occurred on the northern most section of the San

Andreas Fault and lasted for between 45-60 seconds

– the quake was felt from Oregon to south of Los Angeles in inland to Nevada

– natural result was that sediment filled valleys experienced severe shaking due to the geological make up of this area

Photos of the 1906 Quake Damage

This photograph by Arnold Genthe shows Sacramento Street and approaching fire. Image taken from Steinbrugge Collection of the UC Berkeley Earthquake Engineering Research Center.

More Photos of Quake Damage

San Francisco City Hall after the 1906 Earthquake. (from Steinbrugge Collection of the UC Berkeley Earthquake Engineering Research Center)

George Lawrence Aerial Photos

Image taken from http://earthquake.usgs.gov/regional/nca/1906/18april/images/sf06.city.html

Earthquake Photos from a different perspective:

George Lawrence - Kite Aerial Photo

Image taken from http://en.wikipedia.org/wiki/George_R._Lawrence 

Modern Resources• Many online resources for earthquake hazard mapping

– Gathered by organizations, academic libraries, governmental agencies– Creating shake maps, fault maps, “did you feel it” maps, seismogram

displays and probability maps

• Popular local examples of recent earthquake maps are available from the Southern California Earthquake Data Center (SCEDC)– allows the user to locate immediately were an earthquake has

occurred and the intensity– I have used this page on my cell phone to locate the epicenter after I

have felt a quake – the bigger the square, the larger the quake & recent occurrences are

in red (see next image!)

Organizations: SCEDC Map

Image taken from http://www.data.scec.org/recenteqs.html

Parkfield Shake TableParkfield is located right on the San Andreas fault line in California. It exists to study actual earthquake waves and show a visual representation of these waves with a shake table that consists of vertical rods that shake when they detect movement through motion detectors. This table is an conception and construction of R.V. Rogers,

artist, and Andy Michael, seismologist.

The shake table at dusk (http://earthquake.usgs.gov/research/parkfield/shake)

Placing Parkfield, California in the Bigger Picture…

Image taken from http://earthquake.usgs.gov/research/parkfield/wallace.html

Libraries and Earthquake Study

There are many libraries that are the home to mapping resources and materials that can be used for the study of earthquake events. We will look at some of these facilities and what they have to offer the scientific community. In addition, some educational resources including maps that can be used in the classroom when

teaching earthquake

preparedness are also

covered.

Academic Library –UC Berkley Earth Sciences & Maps

This specialty library • has an index page that provides access to all subject areas as well as

USGS Quads online including topographic and aerial

• partners with the Berkley Seismological Laboratory that conducts earthquake research and is active in education (http://seismo.berkeley.edu/seismo/Homepage.html).

• links to the Alquist-Priolo Earthquake Fault Zones of California (http://www.lib.berkeley.edu/EART/UCONLY/CDMG/)

• links to the Southern California Earthquake Center (http://www.scec.org/)

– which combines historical significance and the need for preparedness

UC Berkley Collection and links to SCEDC maps

Image taken from http://www.data.scec.org/clickmap.html

Academic Library – Humboldt University Library

• One the most comprehensive indexes for California maps and a great resource for both earthquake hazard maps and California maps-- library.humboldt.edu/~rls/geospatial/calmaps.htm#geologic

• Lists maps that can found both online through the university library catalog and via a website found on their index which allows for flexibility for the searcher that may not be able to visit the library in person

• Links to State of California Geological Survey and geological maps www.consrv.ca.gov/cgs/rghm/rgm/250k_index/Pages/250k_index.aspx

Map examples fromHumboldt University Library

Image taken from http://www.consrv.ca.gov/cgs/rghm/quakes/Pages/MS49.aspx

Image taken from http://www.consrv.ca.gov/CGS/rghm/psha/fault_parameters/htm/Pages/index.aspx

Online Library – Librarians Internet Index

• Librarians Internet Index - http://lii.org/pub/subtopic/1499

• publicly funded website

• not a regular library in that…

– no reference services available

– no items to check out

• offers a weekly newsletter for those interested

• allows users to suggest a site that they deem a valid resource on a particular subject area

• this online index is a great time saver - most sites used on this report are listed on this index

Librarians Internet Index links to- governmental agency maps and photos

Image taken from http://pubs.usgs.gov/gip/earthq3

Image taken from http://earthquake.usgs.gov/

regional/nca/1906/

Governmental Agency Library – USGS Library at Menlo Park

• This is the Western Regional Library for the USGS– “Special collections of California monographs, maps, and

journals on California geology, water, ecology, soils, mining exploration, history. Aerial photography collection of 100,000 aerial photos, mostly of San Francisco Bay Region, many 1940's-50’s (USGS, 2009, http://library.usgs.gov/menlib.html)

– Maps include USGS Topographic from the early 1880’s to present, USGS Series maps, non-USGS maps, gazetteers, map catalogs, indexes and other mapping resources

– The library uses the U.S. Geological Survey Library Classification System

– Some materials are available via their online catalog

Conclusions

I hope you enjoyed this sample of the many library resources and services for earthquakes. Two others include…

• California Geological Survey http://www.consrv.ca.gov/cgs/information/kids_geozone/Pages/Index.aspx

• An Online Museum for historic accounts of CA earthquakes http://www.sfmuseum.org/index.html

More ReferencesAbout.com. (2009, November 18). Seismic hazard map, U.S. 48 states. Retrieved from

http://geology.about.com/library/bl/maps/bl48states.htm.

Cal E.M.A. (2007, November 16). Preparedness and training. Retrieved from http://www.oes.ca.gov/.

Cal.gov (2007, November 27). California geological survey. Retrieved from http://www.consrv.ca.gov/cgs/rghm/rgm/250k_index/Pages/250k_index.aspx. 

Discovery Education. (2008, November 20). Lesson plans library. Retrieved from http://school.discoveryeducation.com/lessonplans/activities/trackingearthquakes/.

Fema. (2009, November 16). Seismic rehabilitation cost estimator. Retrieved from http://www.fema.gov/srce/index.jsp.

Humboldt University (2007, November 27). California maps. Retrieved from http://library.humboldt.edu/~rls/geospatial/calmaps.htm. 

Librarians Internet Index. (2009, November 18). Earthquakes-California. Retrieved from http://lii.org/pub/subtopic/1499. 

San Francisco Public Library (2007, November 20). San Francisco historical photograph collection. Retrieved from http://sfpl.lib.ca.us/librarylocations/sfhistory/equake-browse.htm. 

More ReferencesScott Haefner (2009, November 20). Parkfield shake table. Retrieved from http://

scotthaefner.com/features/shaketable/

Southern California Earthquake Data Center. (2009, November 18). Welcome page. Retrieved from http://www.data.scec.org/gen_info.html 

The Virtual Museum of the City of San Francisco. (2009, November 18). Large format damage photographs. Retrieved from http://www.sfmuseum.org/1906/photos.html. 

UC Berkley Library. (2009, November 20). Earth sciences and map library. Retrieved from http://www.lib.berkeley.edu/EART/EarthLinks.html. 

USGS. (2009, November 18). Earthquakes. Retrieved from http://earthquake.usgs.gov/earthquakes/.

USGS. (2009). USGS library. Retrieved November 18, 2009. http://library.usgs.gov/menlib.html. 

USGS (2009, November 20). “San Francisco in ruins” by George Lawrence. Retrieved from http://earthquake.usgs.gov/regional/nca/1906/kap/lawrence.php.  

Wikipedia (2009, November 29). George Lawrence. Retrieved from http://en.wikipedia.org/wiki/George_R._Lawrence