CTD_DATABASE - Cascadia tsunami deposit database

The Cascadia Tsunami Deposit Database contains data on the location and sedimentological properties of tsunami deposits found along the Cascadia margin. Data have been compiled from 52 studies, documenting 59 sites from northern California to Vancouver Island, British Columbia that contain known or potential tsunami deposits. Bibliographical references are provided for all sites included in the database. Cascadia tsunami deposits are usually seen as anomalous sand layers in coastal marsh or lake sediments. The studies cited in the database use numerous criteria based on sedimentary characteristics to distinguish tsunami deposits from sand layers deposited by other processes, such as river flooding and storm surges. Several studies cited in the database contain evidence for more than one tsunami at a site. Data categories include age, thickness, layering, grainsize, and other sedimentological characteristics of Cascadia tsunami deposits. The database documents the variability observed in tsunami deposits found along the Cascadia margin.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20220722134805
identifier USGS:6060e83b-1c11-4fb8-8f02-822f1bfbee0e
metadata_type geospatial
modified 20201019
old-spatial {"type": "Polygon", "coordinates": [[[-127.8462, 40.6197], [-127.8462, 50.5089], [ -122.7100, 50.5089], [ -122.7100, 40.6197], [-127.8462, 40.6197]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 13f5113b044e83e73fc2adad0524b74bb88c31c5
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-127.8462, 40.6197], [-127.8462, 50.5089], [ -122.7100, 50.5089], [ -122.7100, 40.6197], [-127.8462, 40.6197]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • 06015-del-norte
  • 06023-humboldt
  • 41007-clatsop
  • 41011-coos
  • 41015-curry
  • 41019-douglas
  • 41039-lane
  • 41041-lincoln
  • 41057-tillamook
  • 53027-grays-harbor
  • 53029-island
  • 53031-jefferson
  • 53049-pacific
  • amerigeo
  • amerigeoss
  • british-columbia
  • ca02-british-columbia
  • cascadia
  • ckan
  • cmgp
  • coastal-and-marine-geology-program
  • geo
  • geoscientificinformation
  • geoss
  • national
  • north-america
  • northern-california
  • oceans
  • oregon
  • pacific-coastal-and-marine-science-center
  • pcmsc
  • sedimentological-properties
  • tsunami-deposits
  • tsunami-events
  • tsunamis
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-6060e83b-1c11-4fb8-8f02-822f1bfbee0e
  • vancouver-island
  • washington
isopen False
license_id notspecified
license_title License not specified
maintainer PCMSC Science Data Coordinator
maintainer_email pcmsc_data@usgs.gov
metadata_created 2025-11-21T05:25:16.440031
metadata_modified 2025-11-21T05:25:16.440035
notes The Cascadia Tsunami Deposit Database contains data on the location and sedimentological properties of tsunami deposits found along the Cascadia margin. Data have been compiled from 52 studies, documenting 59 sites from northern California to Vancouver Island, British Columbia that contain known or potential tsunami deposits. Bibliographical references are provided for all sites included in the database. Cascadia tsunami deposits are usually seen as anomalous sand layers in coastal marsh or lake sediments. The studies cited in the database use numerous criteria based on sedimentary characteristics to distinguish tsunami deposits from sand layers deposited by other processes, such as river flooding and storm surges. Several studies cited in the database contain evidence for more than one tsunami at a site. Data categories include age, thickness, layering, grainsize, and other sedimentological characteristics of Cascadia tsunami deposits. The database documents the variability observed in tsunami deposits found along the Cascadia margin.
num_resources 2
num_tags 41
title CTD_DATABASE - Cascadia tsunami deposit database