18541223marigram11Archival and Discovery of December 23, 1854 Tsunami Event on Marigrams (ID: boundingExtent) Coastal Tide Gauge Network of the International Community at E: -117.22565, W: -122.43750, N: 37.69944, S: 32.70059#footprint-122.43750,32.70059 -117.22565,32.70059 -117.22565,37.69944 -122.43750,37.69944 -122.43750,32.70059