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EARTHQUAKES — Partial Guide to Web Resources
Dr. Richard Sedlock, SJSU Geology
sedlock@geosun1.sjsu.edu
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this page last updated Wednesday, March 17, 2004
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General Information (including recent EQs)
U.S. Geological Survey — A good place to start; includes earthquake FAQs, definitions, links, etc.
University of Washington — An earthquake “switchboard” to transfer to the home page of dozens of seismological labs/researchers/etc throughout the U.S. and world.
Putting Down Roots In Earthquake Country — The full on-line version of an informational/educational pamphlet distributed to southern California residents in 1995 by the Southern California Earthquake Consortium (SCEC). Written in plain English.
SCEC Education Module — SCEC developed this on-line, somewhat interactive site to serve students who are looking for alterate explanations, descriptions, examples, etc. Lots of nice maps, though the emphasis is on southern California.
The 17 Aug 99 Izmit, Turkey earthquake — A U.S. Geological Survey page with succinct, understandable technical background and information, including maps and photographs.
The 21 Sept 99 Taiwan earthquake — A fine site out of Taiwan, including some amazing pictures of surface rupture and structural damage.
EQNET — The Earthquake Information Network is maintained by a consortium of national, regional, and state organizations working to share earthquake-related information and promote earthquake safety, including a searchable list of Internet resources about earthquakes and earthquake issues.
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Catalogs & Searches
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Earthquake Hazards
Shaking Intensity Maps (ABAG) — Very cool site that includes maps of predicted damage (using Mercalli intensity scale) due to various Bay Area EQs in various parts of the Bay Area.
Dam Failure Hazard Maps (ABAG) — Similar to the above: pick a Bay Area city, see which (if any) dams would pose a threat if they failed.
Soil Type Anywhere in the Bay Area — Click anywhere on the map to get a detailed look at the soil in any part of the Bay Area, color-coded to reflect its vulnerability to seismic shaking.
San Francisco Bay landslides — USGS site focusing on landslide hazard in the Bay Area, including (slow-loading) movies, photos, descriptions, and discussion. Originally posted in response to queries about El Niño.
Tsunami — Nice NASA site with effective explanations, diagrams, and disaster photos.
Fault scarp in Taiwan #1 – – Fault scarp in Taiwan #2 — Spectacular surface rupture caused by the Sept 99 earthquake in Taiwan. This earthquake included a large component of thrust motion, so large fault scarps formed.
Virtual Fieldtrip of the Slumgullion Earthflow— Draggable panoramic photographs of the Slumgullion landslide in the Rocky Mountains.
California Seismic Hazard Maps — In-progress mapping of seismically vulnerable parts of the state that show the extent of hazards other than surface rupture; i.e., this program (finally) goes beyond the Alquist-Priolo legislation. Much of the L.A. region is finished, whereas Bay Area mapping has just begun (though some quadrangles are probably ready by now).
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Faults & Seismology
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Earthquake Engineering
Earthquake Engineering Research Institute (EERI) — Much of this site is directed at engineers, but some is intended for policy makers, community leaders, and regular folks. Particularly relevant is a guide to Seismic Legislation in California and elsewhere in the U.S.
Earthquake Engineering text and slides — UC-Berkeley professor's on-line Earthquake Engineering textbook/course notes, with hundreds of annotated slides.
USGS: Structural Engineering inks — Links to a number of useful sites that focus on safer structures, earthquake engineering, and building codes.
California Law — The entire legal code of the State of California, in relatively easy-to-navigate form.
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Earthquake Prediction
EQ probability in the Bay Area — Full text of report by USGS et al. detailing probabilities on specific faults in the Bay Area (released October 1999).
Debates from Nature — Debates among scientists about the feasibility of earthquake prediction. Most of the letters are fairly to very technical, but many will be clear enough to the non-specialist. Best bets: Main (intro and Wk 7), Geller (Wk 1, 3, 4), Wyss (Wk 3, 6).
QuakeAlert — A mechanical device said to provide warning of the imminent arrival of damaging earthquake waves. |
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Earthquake Insurance
Insure.com — Insurance news site that supplies some background information about California earthquake insurance (with a link to the CEA), as well as a variety of other insurance-related issues.
What are the Principles of Insuring Natural Disasters? — A long, fairly readable, mostly unbiased piece by Richard Roth of California’s Department of Insurance, published by EERI.
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Social Issues
Post-earthquake housing — Mary Comerio et al. provide a sobering look at housing losses and availability after a major urban California earthquake, based partly on their analysis of the Northridge aftermath.
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Earthquake Safety and Preparedness
USGS: EQ Preparedness Links — Links to a number of useful sites that focus on earthquake preparedness.
American Red Cross — Safety tips and guidelines for preparing for, coping with, and surviving all sorts of disasters, not just earthquakes. The Earthquakes section is also available en español. Also check out the entire section devoted to “California Preparedness.”
EQE’s Home Preparedness Guide — High-visibility engineering firm’s brief pages on simple retrofitting, masonry chimneys, whether you need earthquake insurance, contingency plans, etc.
Federal Emergency Management Agency (FEMA) — You may find items of interest by clicking on “Mitigation” and “Preparedness” in the menu frame on the left
FEMA’s Guide to Mitigation — Simple instructions (with diagrams) for bracing water heaters, bolting cabinets, bracing cripple walls, securing pictures and mirrors, etc. |
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Other Sources
The Natural Hazards Center at the University of Colorado offers links to lists of disaster-related periodicals and disaster-related organizations, the searchable on-line journal Disaster Research, and more.
Earthquake Papers — full text (but no figures) of dozens of earthquake-related articles from the state publication California Geology), organized by topic and date (all pre-1990).
1906 Earthquake — Site maintained by Museum of City of San Francisco, featuring intriguing features on the 1906 quake and (of course) many fine photographs.
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Web-searching tools:
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