# japan earthquake tsunami warning

Jeff Ranieri (@JeffRanieri) on X » Emmy award winning Chief Meteorologist @nbcbayarea San Francisco #SF #Oakland #SanJose. I track your microclimate #weather 5, 6, 7 & 11PM #StormRanger #BayArea Twitter.com

Japan Earthquake Tips: What To Do Before, During And After » News on Japan, Business News, Opinion, Sports, Entertainment and More static page Japantimes.co.jp

Magnitude 7.6 earthquake jolts Japan's western area; tsunami alert issued » Japan issued tsunami alerts Monday after a series of strong quakes in the Sea of Japan… Khaleejtimes.com

Robust uncertainty quantification of the volume of tsunami ionospheric holes for the 2011 Tohoku-Oki earthquake: towards low-cost satellite-based tsunami warning systems » Abstract. We develop a new method to analyze the total electron content (TEC) depression in the ionosphere after a tsunami occurrence. We employ Gaussian process regression to accurately estimate the TEC disturbance every 30 s using satellite observations from the global navigation satellite system (GNSS) network, even over regions without measurements. We face multiple challenges. First, the impact of the acoustic wave generated by a tsunami onto TEC levels is nonlinear and anisotropic. Second, observation points are moving. Third, the measured data are not uniformly distributed in the targeting range. Nevertheless, our method always computes the electron density depression volumes, along with estimated uncertainties, when applied to the 2011 Tohoku-Oki earthquake, even with random selections of only 5 % of the 1000 GPS Earth Observation Network System receivers considered here over Japan. Also, the statistically estimated TEC depression area mostly overlaps the range of the initial tsunami, which indi Nhess.copernicus.org

Catherine O’Connell on LinkedIn: #塵も積もれば山となる #tohoku » Today marks the anniversary of the 2011 9.0M earthquake & tsunami and all that unfolded after that. It’s hard to believe that 13 years have passed since that… Linkedin.com

The 2011 Japan tsunami current velocity measurements from survivor videos at Kesennuma Bay using LiDAR » <em>Geophysical Research Letters</em> is an AGU journal publishing high-impact, innovative articles on major advances spanning all of the major geoscience disciplines. Agupubs.onlinelibrary.wiley.com