Horning, Tom, and NOAA Center for Tsunami Research, 2006, Alaska 1964 Tsunami Observations at Seaside, Oregon (alaska1964_obs.shp): U.S. Geological Survey, Menlo Park, California.This is part of the following larger work.Online Links:
Wong, Florence L. , Venturato, Angie J. , and Geist, Eric L. , 2006, Seaside, Oregon Tsunami Pilot Study -- Modernization of FEMA Flood Hazard Maps: GIS Data: U.S. Geological Survey Data Series 236, U.S. Geological Survey, Menlo Park, California.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 1.000000. Longitudes are given to the nearest 1.000000. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Defined by Jaffe for analysis purposes
Defined by Jaffe for analysis purposes
| Value | Definition |
|---|---|
| 1964 | Alaska 1964 event |
| Value | Definition |
|---|---|
| TDD | Tsunami drift debris |
| TDL | Tsunami drift logs |
| TML | Tsunami mud layer |
| TSL | Target sand layer |
| TWM | Tsunami High Water Mark |
| Value | Definition |
|---|---|
| FL | Foam line |
| SL | Surge Level |
| SPL | Splash level |
| WL | Water level |
| Value | Definition |
|---|---|
| YES | based on observation |
| NO | no observation |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 23 |
| Units: | feet |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 5.9 |
| Units: | meters |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 23 |
| Units: | feet |
| Resolution: | 1 |
| Value | Definition |
|---|---|
| GP | Ground photography |
| NP | Newspaper |
| PC | Personal communication |
| ST | Soil trench |
Coordinates defined by features.
Coordinates defined by features.
Tom Horning (Horning Geosciences), Bruce Jaffe
206-526-6556 (voice)
Angie.J.Venturato@noaa.gov
This data set is one of a collection of spatially referenced digital files in a geographic information system related to the Seaside, Oregon, Tsunami Pilot Study.Federal Emergency Management Agency (FEMA) Federal Insurance Rate Map (FIRM) guidelines do not currently exist for conducting and incorporating tsunami hazard assessments that reflect the substantial advances in tsunami research achieved in the last two decades (Tsunami Pilot Study Working Group, 2006). Therefore, as part of the FEMA Modernization Program, a Tsunami Pilot Study was carried out in the Seaside/Gearhart, Oregon, area to provide information from which tsunami mapping guidelines could be developed. This area was chosen because it is typical of coastal communities in the section of the Pacific Coast from Cape Mendocino to the Strait of Juan de Fuca. There was also considerable interest shown by state agencies and local stakeholders in mapping the tsunami threat to this region. The study was an interagency effort by scientists from the U.S. Geological Survey, the National Oceanic and Atmospheric Administration, the University of Southern California, and the Middle East Technical University. We present the GIS data from that report in this publication.
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.
Horning, Tom, Unpublished Material, Seaside 1964 observations.
Data sources used in this process:
Data sources produced in this process:
Tsunami Pilot Study Working Group, 2006, Seaside, Oregon Tsunami Pilot Study -- Modernization of FEMA Flood Hazard Maps: U.S. Geological Survey Open-File Report 2006-1234, U.S. Geological Survey, Menlo Park, California.Online Links:
Fiedorowicz, B.K., 1997, Geologic evidence of historic and prehistoric tsunami inundation at Seaside, Oregon: Portland State University, Portland, Oregon.Online Links:
contact Tom Horning Horning Geosciences Seaside, Oregon 97138
Complete.
The data set was checked for logical consistency by comparing with the original dataset.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None.
- Use_Constraints:
- These data were created for the sole purpose of the Seaside, Oregon, Tsunami Pilot Study. It is not meant for navigational means. The National Oceanic and Atmospheric Administration makes no expressed or implied warranty regarding the accuracy of these data.
The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data on any other system.
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
1-888-275-8747 (voice)
infoservices@usgs.gov
U.S. Geological Survey Data Series 236
The act of distribution shall not constitute any warranty expressed or implied by the U.S. Geological Survey as to the accuracy of these data, and no responsibility is assumed by the U.S. Geological Survey in the use of these data on any other system.
| Data format: | ARCE (version 9.1) ArcGIS shapefile Size: 0.020 |
|---|---|
| Network links: |
<https://pubs.usgs.gov/ds/2006/236/> |
206-526-6556 (voice)
Angie.J.Venturato@noaa.gov
