Thu, 14 Apr 2011
Users monitor tsunami with SBC website
Our oceanographic instruments deployed at Stearns Wharf were on hand to record the effects of the tsunami wave that swept across the Pacific Ocean following a magnitude 9.0 earthquake off the coast of Japan on Saturday, March 12, 2011. In cooperation with PISCO and SCCOOS, we regularly record seawater temperature, salinity, and sea-level height (reported as tide height), and data are available in near real-time. As with the Chilean earthquake last year, there was evidence of tsunami waves on our instruments. In the figure below, the tsunami signal appears to start at approximately the low-tide, about 9am. The traffic on our website was also notable; traffic to the Stearns Wharf site was up more than 25-fold on Friday (the first day of the tsunami). The wave appears to have echoed in the channel for several days. And clearly, many users were curious about the behavior of the wave as it dissapated, and visited the site often during the next week. As long as the tsunami was evident, traffic to our website increased 10-20 times over normal rates.
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