PNSN WebSite Map

PNSN WebSite Map - Updated September 2005

PNSN HOME PAGE

Latest Quakes - same as Recent Quakes page

Recent Quakes
Notable Quakes - Since 1993
Webicorders - Real-time displays
NEWS
ShakeMap - Instrumental Shaking
Did You Feel It? - Human Shaking Reports
Volcano Quakes
Tsunami Warning Center
US Earthquakes
Canadian Earthquakes
World Earthquakes

Volcano Seismicity

Volcanic Hazards

Map and List of Cascade Eruptions in the last 4,000 years - from CVO

Volcano Seismicity Pages from the PNSN

More Volcano Links - From other organizations

Catalogs and Data

Catalogs

Basic Information on Catalogs
PNSN Catalog Search 1970 - Present
Alternative Custom Search - from the CNSS (now the ANSS)
Summary Line Format - Description of summary card fields
ftp Annual files loc.70, loc.71, loc.72 .... loc.98, loc.99, loc.00, etc.
loc.EQ.M_gt_3. - see Summary Line Format
loc.EQ.M_gt_3_simsum - More Readable format
GLOBAL EARTHQUAKE CATALOG SEARCH - From USGS NEIC

Trace Data

IRIS Data Management Center - Archives PNSN trace data
PNSN Strong Motion Parameters - 1997-2000
ShakeMap - Instrumental Shaking from PNSN real-time instrumentation - Includes Strong Motion Parameters
Strong Motion Data for 2/28/2001 Nisqually Earthquake
- PNSN Nisqually Earthquake Page
- ShakeMap - Nisqually EQ; Instrumental Intensity, PGA, PGV, and Spectral Response
- Community Intensity Maps - based on felt reports
  Time Series Data:
  - PNSN (See the readme for format description.)
  - USGS Seattle Urban Seismic Array
  - USGS NSMP
  Summary Data (PGA, PGV)
  - PNSN
  - USGS NSMP
- Strong-Motion Amplification Maps of the Tumwater and Lacey Quadrangles From the Washington Dept. of Natural Resources
- PNSN Webicorder Archives - trace data for the Nisqually earthquake 2/28/01

PNSN Stations

Focal Mechs

USGS Page on Focal Mechanisms
IRIS Page on Fault Motions
From the PNSN - First-motion focal mechanisms and Description of format and procedure
Moment-tensors; moments and focal mechanisms Provided by Oregon State University

Intensities

Modified Mercalli Intensity Scale
Shaking Intensity from C. J. Ammon, St. Louis. U.
ShakeMap - Instrumental Shaking from PNSN real-time instrumentation
CIIM - Human Shaking Reports, collected on-line by the USGS in Pasadena CA
Duvall, 96/05/02 9:04 PM PDT
Bremerton 97/06/23 12:13:27.03 PM PDT
Satsop 99/07/02 06:43 PM PDT
NGDC Earthquake Intensity Database U.S. Intensity Data - 2,500 earthquakes reported from 1638-1928 and more than 18,500 events from 1928-1985.
1929-1969 Earthquake information and Isoseismal Maps from United States Earthquakes, U.S. Department of Commerce, Coast and Geodetic Survey
Isoseismal Maps for the 1872 North Cascades earthquake: Various investigators have proposed different isoseismal maps for this large (M 6.8-7.4) crustal earthquake

Historic EQs

Map and List of Selected Historic Earthquakes in the Pacific Northwest - from the PNSN
Notable Quakes - 1993 to Present
Nisqually Earthquake Info - From the PNSN - A damaging deep Puget Sound earthquake, magnitude 6.8 - on Feb. 28, 2001
Nisqually Earthquake Clearinghouse - Feb. 28, 2001
About the installation of the PNSN in 1969.
1872-Present - PNSN Catalog of Earthquakes Magnitude 4.0 or larger (partially incomplete before 1970).
1929-1969 - WA and OR Earthquake information and Isoseismal Maps from United States Earthquakes, U.S. Department of Commerce, Coast and Geodetic Survey
NGDC Earthquake Intensity Database - U.S. Intensity Data - 2,500 earthquakes reported from 1638-1928 and more than 18,500 events from 1928-1985.
1793-1929 - Historic Seismicity Catalog and Macroseismic Accounts for Cascadia, 1793-1929: A Database in Microsoft ACCESS format.
1872 North Cascades earthquake - The largest PNW historic crustal earthquake. Magnitude estimated at 6.8-7.4
Largest Puget Sound historic earthquakes 1791-1928 - A descriptive catalog with links to verbatim original sources
Cascadia Megathrust Earthquakes in PNW Indian Legend

Reports

Hazards & Preparation

Earthquake Hazards

EARTHQUAKE HAZARD by ZIP CODE and

MORE - From the USGS National Seismic Hazards Mapping Project

Map and List of Selected Historic Earthquakes in the Pacific Northwest
Deep
- Schematic Diagram showing the relative positions of the Juan de Fuca and North American Plates.
- Dip-Slip or Normal Faulting - Animations of different types of faulting.
- Mineral Changes- Explanation of earthquakes caused by mineral changes.
  Damaging Benioff Zone Earthquakes in Washington
  - 1949 Mag: 7.1 Depth: 53km Loc: Olympia Damage: Map and Details
  - 1965 Mag: 6.5 Depth: 63km Loc: Sea-Tac Damage: Details
  - 1999 Mag: 5.5-5.8 Depth: 41km Loc: Satsop Damage: PNSN Event Info and Damage - CUSEC (PDF)
  - 2001 Mag: 6.8 Depth: 52km Loc: Olympia(Nisqually) Damage: PNSN Event Info and Damage - Nisqually Clearinghouse
  - 2001 Mag: 5.0 Depth: 40km Loc: Matlock Damage: PNSN Event Info
- Schematic Diagram showing the positions of the 2001, 1965, and 1949 earthquakes.
Shallow
- Major Faults of the Puget Lowlands - Adapted from USGS Map I-1613, Gower and others, 1985
- Active Faults
  - Active Tectonics of the Devils Mountain Fault and Related Structures, Northern Puget Lowland and Eastern Strait of Juan de Fuca Region, Pacific Northwest - U.S. Geological Survey Professional Paper 1643
  - Active Faults in The Puget Lowland - From Sam Johnson of the USGS
  - The southern Whidbey Island fault - From Sam Johnson of the USGS
  - Northwest Oregon fault zones and basins, including Portland and Northern Willamette Basins - From the USGS
  - The Blanco Fracture Zone and Offshore seismicity in the Pacific Northwest
  - Decreasing earthquake losses through mitigation.
Subduction
- January 1700 Earthquake
  - Land-Levels
  - Tree Rings
  - Local Tsunami
  - Japan Tsunami
    - Animation of tsunami traveling from Chile
    - 1994 Tsunami - Originating from a magnitude 8.1 quake in the Kuril Islands
    - More on this topic - A prize-winning essay from Jeff Chapin, Princeton University '98.
  - Turbidites
    - Active Tectonic s and Seafloor Mapping Lab - Oregon State University College of Oceanic and Atmospheric Sciences
    - The Underwater World - From the Navy
    - Ocean Basins - From Okanogan University College
    - Highly visible turbidite layer from the eruption of Mount Mazama.
  - Native Tales
    - Printable PDF file of "Dating the 1700 Cascadia Earthquake - Great Coastal Earthquakes in Native Stories"
    - Cascadia Megathrust Earthquakes in the Pacific Northwest Indian myths and legends - Draft article by Ruth Ludwin with links to full text of some stories.
    - Printable PDF file - Cascadia Megathrust Earthquakes in Pacific Northwest Indian myths and legends, by Ruth Ludwin - Slightly updated, but without the stories
- Latest Info
  - The Silent Type: Pacific Northwest hit routinely by nonquakes - From Science News, April 2002
  - West Coast Earthquakes Ongoing, Scientists Discover - From NSF, March 2002
  - PDF File - 2 pages - Cascadia Subduction Zone Slip Event Detected - 2001
  - Periodic Slow earthquakes from the Cascadia Subduction Zone - From PANGA
  - Evidence for periodic silent earthquakes along the Cascadia plate interface from the Pacific Northwest Geodetic Array - From PANGA - GSA Abstract, 2002

Volcano Hazards

Tsunamis

Tsunami! -Recommended!- From the UW Department of Civil Engineering
Cascadia Subduction Zone and Seattle Fault Scenarios and Tsunami Inundation Models
Tsunami Damage in Washington from the 1964 Alaskan Earthquake- - From US Army Corps. of Engineers (only works in Explorer)
Cascadia Earthquakes and Tsunami Hazard Studies - From the USGS
West Coast & Alaska Tsunami Warning Center - Near real-time tsunami informational bulletins - Alternative link
NOAA Tsunami Project - mitigating tsunami hazards in WA, OR, CA, AK, and HI
- Tsunami Animations on the Washington Coast
- Tsunami Animations on the Oregon Coast
Washington State Emergency Management Tsunami Program
TsuInfo Alert - Quarterly Newsletter of the National Tsunami Mitigation Program
TSUNAMI by NOAA's Frank Gonzalez - From Scientific American, May 1999
The Indian Ocean Tsunami - What it means for Cascadia
More Tsunami Links - From the USGS Earthquake Hazards Program

EQ Effects

Ground Failure

Liquefaction - Sponsored by UW Civil Engineering *will not work in Netscape 6.2*
Landslides
Tsunamis

Preparedness & Mitigation

Red Cross - Preparedness tips
Seismic Retrofit Training - From "Association of Bay Area Governments" (ABAG) California
FEMA
- Earthquake Preparedness
- Tsunami Preparedness
- Volcano Preparedness
- Landslide & Mudflow Preparedness
- Disaster Mitigation - All Hazards
- Community and Family Preparedness
- HAZUS - Multi-Hazard Loss Estimation
NOAA
- Tsunami Hazard Mitigation Program
- Tsunami Inundation Models - For some communities
UW and Seattle Resources
- Seattle Project Impact - Building a disaster-resistant community
- Institute for Hazard Mitigation Planning and Research - UW College of Architecture and Urban Planning
- Geography of Natural Hazards - UW course on the human response to earthquakes and disasters. From Prof. Stephanie Chang, UW Geography Department
State, Provincial, and Regional Groups
- Cascadia Regional Earthquake Workgroup - Reducing earthquake hazards in the Pacific Northwest
- Washington State Emergency Management and Earthquake/Tsunami Mitigation Page
- Oregon State Emergency Management - Check out their site index for links to preparedness
- Impact of Tsunamis on Oregon Costal Communities - From the Center for Coastal and Land-Margin Research, Oregon Health & Science University
- British Columbia Emergency Management

Research

Outreach and Education

Education Resources

Seismometers

Station Maps

Strong Motion Sensors

Ground Motion vs. Damage

Applications for Strong Motion Data

Webicorders

EQ Education Links

Lab Tours

Real-Time Information Products

Latest Quakes
Webicorders
ShakeMap
CIIM - Community Internet Intensity Map
Volcano Quakes
RACE
IRIS

Info Products

Hazard Maps and Fact Sheets

USGS National Seismic Hazards Map

Uniform Building Code Earthquake Hazards Map for Washington and Oregon from CREW

DNR Liquefaction Map of Kent Valley from Washington State DNR

USGS-Seattle Area Lifeline Map

USGS-Hazards Fact Sheet

From the PNSN

Executive Summary of Pacific Northwest Earthquake Risks - Printable PDF Format

Map and List of Selected Historic Earthquakes in the Pacific Northwest

Major Faults in the Puget Sound - Based on USGS map I-1613; Gower et al., 1985
SEISMICITY WALL MAPS AND USGS PRODUCTS

USGS wall map: Major Earthquakes of the Pacific Northwest Attractive perspective-view showing topography and locations of major PNW earthquakes

USGS wall map: Earthquakes in Washington and Oregon, 1872-1993

Ordering Maps from the National Earthquake Information Center
Sample: Map view of quakes in western Washington (2M gif file - too large for most users to display)
Sample: Cross section of earthquakes in western Washington (.3M gif file)

USGS geologic mapping and urban hazards geophysical, physiographic, and lifeline hazard maps

JDF Atlas on CD - Neotectonics of the eastern Juan de Fuca Strait; a digital geological and geophysical atlas

Products and Services from the National Earthquake Information Center
EARTHQUAKE SCENARIOS AND TSUNAMI INUNDATION MODELING

Cascadia Subduction Zone and Seattle Fault Scenarios and Tsunami Inundation Models
LIDAR MAPS

LIDAR elevation maps - From the Puget Sound LIDAR Consortium
GEOLOGIC MAPS

Map and data for Quaternary Faults and Folds in Washington State, D.J. Lidke et al. - from the USGS

USGS geologic mapping and urban hazards geophysical, physiographic, and lifeline hazard maps

Pacific Northwest Center for Geologic Mapping Studies From UW Department of Earth and Space Sciences

Geologic Maps of Washington- From Washington State DNR

Geology of Washington - Page size- From Washington State DNR

Recent Publications- From Washington State DNR

Other Washington Geology Info- From Washington State DNR

Interactive map of Oregon Geology -

DOGAMI Publications and Data - From Oregon State Dept. of Geology and Mineral Industries

Operations and Projects

PNSN Operations

More about network operations - Stations, Telemetry, Data Acquisition, Electronics
PNSN Stations - Maps and Locations

Projects

Pacific Northwest Region of ANSS
- Strong-Motion monitoring - On-scale recording of strong shaking in urban areas
- SchoolNet - Strong-Motion seismographs in Schools
PNSN CREST
National monitoring programs:
- ANSS - The USGS Advanced National Seismic System
- CREST - NOAA's Consolidated Reporting of EarthquakeS and Tsunamis.

PNSN Stations

Webicorder Station Map
Map of currently operating stations
Detailed Map-Puget Sound
Detailed Map-Willamette Valley
Maps of PNSN Strong-motion Sensor distribution in Western Washington and Oregon
Currently Operating Stations
Complete List of all PNSN Stations - Updated weekly......Format description of PNSN Station lists

Quarterly Reports

Strong Motion

SchoolNet

PNW ANSS

PNW CREST

More about network operations

Seismometer types:

Short Period - sensitive velocity seismometers with a response
Broadband - velocity seismometers with a wide frequency response. Typically
Strong Motion - accelerometers with three components. Designed to stay on-scale in strong shaking
Data acquisition and recording System:
Earthworm Overview
Earthworm Documentation
Seismology Electronics Shop - Somewhat out of date - but has some good info.