Near-field hazard assessment of March 11, 2011 Japan Tsunami sources inferred from different methods
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Abstract
Tsunami source is the origin of the subsequent transoceanic water waves, and thus the most critical component in modern tsunami forecast methodology. Although impractical to be quantified directly, a tsunami source can be estimated by different methods based on a variety of measurements provided by deep-ocean tsunameters, seismometers, GPS, and other advanced instruments, some in real time, some in post real-time. Here we assess these different sources of the devastating March 11, 2011 Japan tsunami by model-data comparison for generation, propagation and inundation in the near field of Japan. This study provides a comparative study to further understand the advantages and shortcomings of different methods that may be potentially used in real-time warning and forecast of tsunami hazards, especially in the near field. The model study also highlights the critical role of deep-ocean tsunami measurements for high-quality tsunami forecast, and its combination with land GPS measurements may lead to better understanding of both the earthquake mechanisms and tsunami generation process.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Near-field hazard assessment of March 11, 2011 Japan Tsunami sources inferred from different methods |
| ISBN | 9781457714276 |
| DOI | 10.23919/OCEANS.2011.6107294 |
| Year Published | 2011 |
| Language | English |
| Publisher | IEEE |
| Description | 9 p. |
| Larger Work Type | Conference Paper |
| Larger Work Subtype | Conference Paper |
| Larger Work Title | OCEANS'11 - MTS/IEEE Kona, Program Book |
| Conference Title | MTS/IEEE Kona Conference, OCEANS'11 |
| Conference Location | Kona, HI |
| Conference Date | September 19-22, 2011 |
| Country | Japan |
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